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K.H. Eckelmeyer
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K.H. Eckelmeyer
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Matthew A. Willard, George F. Vander Voort
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David T. Schoen, Meredith S. Nevius, Sumit Chaudhary
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R.E. Whan, K.H. Eckelmeyer, S.H. Weissman
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Lucas W. Koester, Leonard J. Bond, Peter C. Collins, Hossein Taheri, Timothy Bigelow
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Jiadong Gong, Thomas Kozmel
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Horst Czichos, Mathias Woydt
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Zheng Wu, Srujana Rao Yarasi, Amir Mostafaei, Anthony D. Rollett
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Book Chapter
Introduction and Overview of Materials Characterization
Available to PurchaseSeries: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003249
EISBN: 978-1-62708-199-3
... describes the classification of materials characterization methods including, bulk elemental characterization, bulk structural characterization, microstructural characterization, and surface characterization. Further, the article reviews the selection of materials characterization methods most commonly used...
Abstract
This article provides a general introduction of materials characterization and describes the principles and applications of a limited number of techniques that are most commonly used to characterize the composition and structure of metals used in engineering systems. It briefly describes the classification of materials characterization methods including, bulk elemental characterization, bulk structural characterization, microstructural characterization, and surface characterization. Further, the article reviews the selection of materials characterization methods most commonly used with metals.
Book Chapter
X-Ray Diffraction for Bulk Structural Analysis
Available to PurchaseSeries: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003251
EISBN: 978-1-62708-199-3
... Abstract X-ray diffraction (XRD) is the most extensively used method for identifying and characterizing various aspects of metals related to the arrangements and spacings of their atoms for bulk structural analysis. XRD techniques are also applicable to ceramics, geologic materials, and most...
Abstract
X-ray diffraction (XRD) is the most extensively used method for identifying and characterizing various aspects of metals related to the arrangements and spacings of their atoms for bulk structural analysis. XRD techniques are also applicable to ceramics, geologic materials, and most inorganic chemical compounds. This article describes the operating principles and types of XRD analyses, along with information about the threshold sensitivity and precision, limitations, sample requirements, and capabilities of related techniques. The necessary instrumentation for XRD analyses include the Debye-Scherrer camera and the X-ray diffractometer. The article also describes the uses of XRD analyses, such as the identification of phases or compounds in metals and ceramics; detection of order and disorder transformation; determination of lattice parameters and changes in lattice parameters due to alloying and temperature effects; measurement of residual stresses; characterization of crystallite size and perfection; characterization of preferred orientations; and determination of single crystal orientations.
Book Chapter
Microstructure and Domain Imaging of Magnetic Materials
Available to PurchaseSeries: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003788
EISBN: 978-1-62708-177-1
..., their characteristics and sample preparation procedures. It reviews the methods pertaining to the microstructural examination of bulk magnetic materials, including microscopy techniques specified to magnetic materials characterization, with specific examples. The techniques used in the study of magnetic domain...
Abstract
Microstructural analysis of specialized types of magnetic materials is centered on the examination of optical, electron, and scanning probe metallographic techniques unique to magnetic materials. This article provides a comprehensive overview of magnetic materials, their characteristics and sample preparation procedures. It reviews the methods pertaining to the microstructural examination of bulk magnetic materials, including microscopy techniques specified to magnetic materials characterization, with specific examples. The techniques used in the study of magnetic domain structures (microstructure) include the magneto-optical Kerr method, the Faraday method, the Bitter technique, scanning electron microscopy (magnetic contrast Types I and II), scanning electron microscopy with polarization analysis, Lorentz transmission electron microscopy, and magnetic force microscopy. The article also illustrates the microstructure of different types of soft magnetic material and permanent magnets.
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001775
EISBN: 978-1-62708-178-8
... Abstract Rutherford backscattering spectrometry (RBS) is a major materials characterization technique that can provide information in a short analysis time. It is used for quantitative compositional analysis of thin films, layered structures, or bulk materials and to measure surface impurities...
Abstract
Rutherford backscattering spectrometry (RBS) is a major materials characterization technique that can provide information in a short analysis time. It is used for quantitative compositional analysis of thin films, layered structures, or bulk materials and to measure surface impurities of heavy elements on substrates of lighter elements. This article focuses on RBS and its principles, such as collision kinematics, scattering cross section, and energy loss. It describes the channeling effect and the operation of the RBS equipment. The article also provides information on the applications of RBS.
Book Chapter
Introduction to Materials Characterization
Available to PurchaseSeries: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006669
EISBN: 978-1-62708-213-6
... characterization The macro, micro, and surface composition and structure of materials are determined by their processing and service histories. These conditions, in turn, control material properties and performance. Characterization of a material’s composition and structure at these levels provides important...
Abstract
This article discusses several purposes and types of materials characterization techniques. Some of the factors to be considered when selecting appropriate characterization methods are described. The article also presents the scope and organization of this volume.
Book Chapter
Semiconductor Characterization
Available to PurchaseSeries: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006670
EISBN: 978-1-62708-213-6
..., fabrication methods, sample preparation, bulk/elemental characterization methods, microstructural characterization methods, surface characterization methods, and electronic characterization methods. semiconductor characterization Introduction This article introduces various techniques commonly...
Abstract
This article introduces various techniques commonly used in the characterization of semiconductors, namely single-crystal, polycrystalline, amorphous, oxide, organic, and low-dimensional semiconductors and semiconductor devices. The discussion covers material classification, fabrication methods, sample preparation, bulk/elemental characterization methods, microstructural characterization methods, surface characterization methods, and electronic characterization methods.
Book Chapter
Introduction to Characterization of Metals
Available to PurchaseSeries: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006678
EISBN: 978-1-62708-213-6
...) Quantitative analysis (precision of +20% relative standard deviation) Macroanalysis or bulk analysis Microanalysis (≤10 μm) Surface analysis Major component (>10 wt%) Minor component (0.1–10 wt%) Trace component (1–1000 ppm, or 0.0001–0.1 wt%) Structure Morphology Atomic force microscopy N...
Abstract
This article briefly discusses popular techniques for metals characterization. It begins with a description of the most common techniques for determining chemical composition of metals, namely X-ray fluorescence, optical emission spectroscopy, inductively coupled plasma optical emission spectroscopy, high-temperature combustion, and inert gas fusion. This is followed by a section on techniques for determining the atomic structure of crystals, namely X-ray diffraction, neutron diffraction, and electron diffraction. Types of electron microscopies most commonly used for microstructural analysis of metals, such as scanning electron microscopy, electron probe microanalysis, and transmission electron microscopy, are then reviewed. The article contains tables listing analytical methods used for characterization of metals and alloys and surface analysis techniques. It ends by discussing the objective of metallography.
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006649
EISBN: 978-1-62708-213-6
... on the important properties to characterize powders, namely the particle size, surface area, density, porosity, particle hardness, compressibility, green strength, and flowability. For characterization of powders, both individual particles and bulk powders are used to evaluate their physical and chemical...
Abstract
This article uses metal and alloy powders as examples to briefly discuss how to perform the characterization of powders. It begins by reviewing some of the techniques involved in the sampling of powders to ensure accurate characterization. This is followed by a discussion on the important properties to characterize powders, namely the particle size, surface area, density, porosity, particle hardness, compressibility, green strength, and flowability. For characterization of powders, both individual particles and bulk powders are used to evaluate their physical and chemical properties. The article also discusses the important characteristics and compositions of powder as well as impurities that directly affect powder properties. It ends with a description of the ignition and dust-explosion characteristics of organic and metal powders.
Book Chapter
How To Use the Handbook
Available to PurchaseSeries: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001726
EISBN: 978-1-62708-178-8
... in article for details; N or † = limited number of elements or groups; S or * = under special conditions; D = after dissolution Method Elem Speciation Iso/Mass Qual Semiquant Quant Macro/Bulk Micro Surface Major Minor Trace Compound/Phase Structure Morphology AAS D D D D D...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001343
EISBN: 978-1-62708-173-3
.... The article discusses nondestructive evaluation of welds by encompassing techniques that are used to characterize the locations and structure of internal and surface defects, including radiography, ultrasonic testing, and liquid penetrant inspection. It reviews the macrostructural characterization...
Abstract
This article describes the characterization of welds as a sequence of procedures, where each procedure is concerned with a finer scale of detail. The first level of characterization involves information that may be obtained by direct visual inspection and measurement of the weld. The article discusses nondestructive evaluation of welds by encompassing techniques that are used to characterize the locations and structure of internal and surface defects, including radiography, ultrasonic testing, and liquid penetrant inspection. It reviews the macrostructural characterization of a sectioned weld, including features such as number of passes; weld bead size, shape, and homogeneity; and the orientation of beads in a multipass weld. The article provides examples that describe how welds are characterized according to the procedures.
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003252
EISBN: 978-1-62708-199-3
.... Identifying microstructural phases and compounds by their crystal structures Characterizing preferred crystallographic orientations by analysis of orientations of individual grains Spatial Resolution Secondary electron imaging of surface topography: ∼10 nm Backscattered electron imaging...
Abstract
Microstructural analysis is the combined characterization of the morphology, elemental composition, and crystallography of microstructural features through the use of a microscope. This article reviews three types of the most commonly used electron microscopies in metallurgical studies, namely scanning electron microscopy, electron probe microanalysis, and transmission electron microscopy. It briefly describes the operating principles, instrumentation which includes energy dispersive X-ray detectors, spatial resolution, typical use of the techniques, elemental analysis detection threshold and precision, limitations, sample requirements, and the capabilities of related techniques.
Book Chapter
Characterization of Ceramics and Glasses
Available to PurchaseSeries: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006671
EISBN: 978-1-62708-213-6
...: The means for characterizing ceramics and glasses and the corresponding rationale behind them The relationship of chemistry, phases, and microconstituents to engineering properties The effects that the structure of raw ceramic materials and green (unfired) products and processing parameters have...
Abstract
The characterization, testing, and nondestructive evaluation of ceramics and glasses are vital to manufacturing control, property improvement, failure prevention, and quality assurance. This article provides a broad overview of characterization methods and their relationship to property control, both in the production and use of ceramics and glasses. Important aspects covered include the means for characterizing ceramics and glasses, the corresponding rationale behind them, and relationship of chemistry, phases, and microconstituents to engineering properties. The article also describes the effects that the structure of raw ceramic materials and green products and processing parameters have on the ultimate structure and properties of the processed piece. The effects that trace chemistry and processing parameters have on glass properties are discussed. The article describes mechanical tests and failure analysis techniques used for ceramics.
Book Chapter
Nondestructive Evaluation of Additively Manufactured Metallic Parts
Available to PurchaseSeries: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006465
EISBN: 978-1-62708-190-0
... residual stresses overcome local material strength. They present as either distributed cracks along a melt pool path that tend to follow grain boundaries, as in Fig. 3 , or structural cracks formed in the bulk from cumulative residual stresses produced in each layer. Dissimilar materials can also...
Abstract
Additive manufacturing (AM) is the process of joining materials to make parts from three-dimensional (3D) model data, usually layer upon layer, as opposed to subtractive manufacturing and formative manufacturing methodologies. This article discusses various defects in AM components, such as porosity, inclusions, cracking, and residual stress, that can be avoided by using vendor recommended process parameters and approved materials. It describes the development of process-structure-property-performance modeling. The article explains the practical considerations in nondestructive evaluation for additively manufactured metallic parts. It also examines nondestructive testing (NDT) inspection and characterization methods for each of the manufacturing stages in their natural order. The article provides information on various inspection techniques for completed AM manufactured parts. The various electromagnetic and eddy current techniques that can be used to detect changes to nearsurface geometric anomalies or other defects are also discussed. These include ultrasonic techniques, radiographic techniques, and neutron imaging.
Book Chapter
Aluminum Alloy Design for Additive Manufacturing
Available to PurchaseSeries: ASM Handbook
Volume: 24A
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.hb.v24A.a0006970
EISBN: 978-1-62708-439-0
... aluminum alloy in AM due to its processability, corrosion resistance, and specific strength ( Ref 2 ). While such alloys have been widely studied and characterized, achieving higher mechanical properties in AM is necessary to make them commercially attractive. However, high-strength aerospace structural...
Abstract
Additive manufacturing (AM) has gained increased significance and has been adopted across many industries for various applications. Specific net-shape AM fabrication methods, such as laser powder-bed fusion (LPBF), have matured significantly, leading to aerospace sector R&D focused on the feasibility of using flagship alloys to manufacture complex components. This article presents one example of an aluminum alloy design tailored for laser powder-bed fusion AM. It discusses the integrated computational materials engineering design approach. The article also presents the design for high-strength, high-temperature aluminum alloys.
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006759
EISBN: 978-1-62708-295-2
... information can be used to qualitatively characterize the transferred plating. There is a trade-off between analysis at lower accelerating voltage and obtaining enough counts for generating adequate spectra. In semiquantitative EDS analysis at the micro level it is useful to first obtain a bulk area...
Abstract
Chemical analysis is a critical part of any failure investigation. With the right planning and proper analytical equipment, a myriad of information can be obtained from a sample. This article presents a high-level introduction to techniques often used for chemical analysis during failure analysis. It describes the general considerations for bulk and microscale chemical analysis in failure analysis, the most effective techniques to use for organic or inorganic materials, and examples of using these techniques. The article discusses the processes involved in the chemical analysis of nonmetallics. Advances in chemical analysis methods for failure analysis are also covered.
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006675
EISBN: 978-1-62708-213-6
.... A quick reference summary of surface-analysis methods is presented in this article. atomic force microscopy scanning probe microscopy surface layers surface analysis THIS DIVISION, “Surface Analysis,” is a new addition in Materials Characterization , Volume 10 of ASM Handbook (2019...
Abstract
This article is an overview of the division Surface Analysis of this volume. The division covers various developed surface-analysis techniques, such as scanning probe and atomic force microscopy. The division focuses on the analysis of surface layers that are less than 100 nm. A quick reference summary of surface-analysis methods is presented in this article.
Book Chapter
Tribological Testing and Presentation of Data
Available to PurchaseSeries: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006402
EISBN: 978-1-62708-192-4
...: graphical presentations of a measured friction or wear quantity as a function of operational parameters or structural parameters Transition diagrams: characterize critical conditions of operational parameters that separate regimes of efficient performance for a given tribosystem from regimes...
Abstract
The influence of friction and wear on the function and structure of tribological systems is determined by various types of tribological tests. This article introduces the general categories of tribological testing and describes the basic objectives of testing. It reviews the results of tribological tests, where the system-dependent characteristics of friction and wear data can be expressed in different forms, such as tribographs, transition diagrams, and tribomaps. A summary of various methods of surface analysis is presented in a table. The article discusses the relationship between wear and reliability in terms of exponential distribution, Weibull distribution, and gamma distribution. It concludes with information on the effects of interaction on failure probability.
Series: ASM Handbook
Volume: 24A
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.hb.v24A.a0006951
EISBN: 978-1-62708-439-0
... of a feature does not ensure its dimensional accuracy. Machine tolerances for dimensions that are typically acceptable at bulk scales become significant sources of error at small scales, which can have large effects on behavior. Given the complex three-dimensional (3D) geometries of most architected structures...
Abstract
This article provides an introduction to architected cellular materials, their design, fabrication, and application domain. It discusses design decisions involving the selection, sizing, and spatial distribution of the unit cell, property-scaling relationships, and the integration of cells within an external boundary. It describes how manufacturing constraints influence achievable feature resolution, dimensional accuracy, properties, and defects. It also discusses the mechanical behavior of architected cellular materials and the role of additive manufacturing in their fabrication.
Book: Composites
Series: ASM Handbook Archive
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003374
EISBN: 978-1-62708-195-5
... selection of surface treatments for surface structural and chemical modification; the use of surface finishes and/or sizes to ensure thorough wetting and protection of the fiber; creation of interphases with desirable stiffness, toughness, and failure modes; and quantitative and qualitative characterization...
Abstract
Fiber-matrix adhesion is a variable to be optimized in order to get the best properties and performance in composite materials. This article schematically illustrates fiber matrix interphase for composite materials. It discusses thermodynamics of interphase in terms of surface energy, contact angle, work of adhesion, solid surface energy, and wetting and wicking. The article describes the change in interphase depending on the reinforcing fiber such as glass fiber, polymeric fiber, and carbon fiber. It emphasizes fiber-matrix adhesion measurements by direct methods, indirect methods, and composite laminate tests. The effects of interphase and fiber-matrix adhesion on composite mechanical properties, such as composite on-axis properties, composite off-axis properties, and composite fracture properties, are also discussed.
Book Chapter
Powder Characterization for Metal Additive Manufacturing
Available to PurchaseSeries: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006568
EISBN: 978-1-62708-290-7
..., for example, 30 μm can affect the structural integrity and mechanical properties. Thus, being able to quantify powder porosity is essential for quality control of powder-based AM processes and understanding the formation mechanism of porosity in AM parts. Unlike defects in bulk, due to the limited...
Abstract
Powder-bed additive manufacturing (AM) processes are some of the most commonly used techniques, necessitating the accurate measurement of powder flowability properties. This article discusses some powder flow tests that occur in powder-bed AM machines. These include the Hall/Carney flow test, bulk/tap density, rheometer, and the revolving or rotating drum technique. The three categories of powder properties that are available from rheometer experiments are discussed: bulk, dynamic flow, and shear properties. The article also describes the basic principles and applications of micro-X-ray computed tomography in studying powder porosity characteristics nondestructively.
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