Skip Nav Destination
Close Modal
By
Ragnvald H. Mathiesen, Lars Arnberg
By
Wilson Vesga, Ben Dutton
By
Ravi K. Enneti, Juan L. Trasorras, Heinrich Kestler
By
Ewen Carcreff, Nans Laroche, Anne-Françoise Obaton
By
Simon A. Barter
By
Mahsius Sami, Prativa Das, Rahim Esfandyarpour
By
Wayne Hung
By
Scott M. Thompson, Nathan B. Crane
By
M. Brennan, J.S. Keist, T.A. Palmer
Search Results for
ultra-fast three-dimensional X-ray tomography
Update search
Filter
- Title
- Authors
- Author Affiliations
- Full Text
- Abstract
- Keywords
- DOI
- ISBN
- EISBN
- Issue
- ISSN
- EISSN
- Volume
- References
Filter
- Title
- Authors
- Author Affiliations
- Full Text
- Abstract
- Keywords
- DOI
- ISBN
- EISBN
- Issue
- ISSN
- EISSN
- Volume
- References
Filter
- Title
- Authors
- Author Affiliations
- Full Text
- Abstract
- Keywords
- DOI
- ISBN
- EISBN
- Issue
- ISSN
- EISSN
- Volume
- References
Filter
- Title
- Authors
- Author Affiliations
- Full Text
- Abstract
- Keywords
- DOI
- ISBN
- EISBN
- Issue
- ISSN
- EISSN
- Volume
- References
Filter
- Title
- Authors
- Author Affiliations
- Full Text
- Abstract
- Keywords
- DOI
- ISBN
- EISBN
- Issue
- ISSN
- EISSN
- Volume
- References
Filter
- Title
- Authors
- Author Affiliations
- Full Text
- Abstract
- Keywords
- DOI
- ISBN
- EISBN
- Issue
- ISSN
- EISSN
- Volume
- References
NARROW
Format
Topics
Book Series
Date
Availability
1-20 of 24
Search Results for ultra-fast three-dimensional X-ray tomography
Follow your search
Access your saved searches in your account
Would you like to receive an alert when new items match your search?
1
Sort by
Book Chapter
X-Ray Imaging of Solidification Processes and Microstructure Evolution
Available to PurchaseBook: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005218
EISBN: 978-1-62708-187-0
... topography, two-dimensional X-ray radiography, and ultra-fast three-dimensional X-ray tomography. solidification microstructure solidification two-dimensional X-ray topography two-dimensional X-ray radiography in situ monitoring X-ray imaging synchrotron radiation ultra-fast three-dimensional X...
Abstract
Metal transparency and interaction with X-rays have been recognized as obvious candidate principles from which methods for in situ monitoring of solidification processes could be developed. This article describes the use of X-ray imaging-based techniques to investigate interface morphology evolution, solute transport, and various process phenomena at spatiotemporal resolutions. It discusses the three viable imaging techniques made available by synchrotron radiation for the real-time investigation of solidification microstructures in alloys. These include two-dimensional X-ray topography, two-dimensional X-ray radiography, and ultra-fast three-dimensional X-ray tomography.
Book
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.9781627081900
EISBN: 978-1-62708-190-0
Book Chapter
Nondestructive Testing of Composites (Polymer- and Metal-Matrix Composites)
Available to PurchaseSeries: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006478
EISBN: 978-1-62708-190-0
... ( x , t ) = β λ I 0 ρ C p e − β x ∫ 0 t f ( t ′ , τ ) d t ′ where β λ is the wavelength-dependent optical absorption coefficient (m −1 ), I 0 is the absorbed energy density of the laser (J/m 2 ), ρ is the material density, C p...
Abstract
This article introduces the principal methodologies and some advanced technologies that are being applied for nondestructive evaluation (NDE) of fiber-reinforced polymer-matrix composites. These include acoustic emission, ultrasonic, eddy-current, computed tomography, electromagnetic acoustic transducer, radiography, thermography, and low-frequency vibration methods. The article also provides information on NDE methods commonly used for metal-matrix composites.
Book Chapter
Nondestructive Testing in Additive Manufacturing—A Review
Available to PurchaseSeries: ASM Handbook
Volume: 24A
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.hb.v24A.a0007023
EISBN: 978-1-62708-439-0
... on maturity and standardization Table 1 Nondestructive testing classification based on maturity and standardization Conventional Advanced Emerging Visual testing Phased array ultrasonic testing Resonance acoustic method Ultrasonic testing X-ray computed tomography Impulse excitation...
Abstract
This article covers defect formation and classification, followed by a brief description of the most common nondestructive testing (NDT) methods used for postbuild inspection. Descriptions of the established and emerging NDT techniques for in-process monitoring (IPM) and in-process inspection (IPI) in additive manufacturing (AM) also are provided, highlighting the advantages and limitations. The article concludes with a list of the main NDT methods and techniques used. As qualification and certification of AM parts is an urgent matter for the AM industry, a description of the current work carried out for developing standards is also included.
Book Chapter
Additive Manufacturing of Tungsten, Molybdenum, and Cemented Carbides
Available to PurchaseSeries: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006583
EISBN: 978-1-62708-290-7
... collimators for x-ray detectors and single-photon emission computed tomography systems ( Fig. 5 ). Collimators of smaller-sized diameter holes and septa are required for obtaining high-resolution images. Tungsten collimators of hole sizes 500 to 525 μm, septal thickness of 150 μm, and length of 25 to 40 mm...
Abstract
Tungsten, molybdenum, and cemented carbide parts can be produced using several additive manufacturing technologies. This article classifies the most relevant technologies into two groups based on the raw materials used: powder-bed methods, such as selective laser melting, electron beam melting, and binder jet three-dimensional (3-D) printing, and feedstock methods, such as fused-filament fabrication and thermoplastic 3-D printing. It discusses the characteristics, processing steps, properties, advantages, limitations, and applications of these technologies.
Book Chapter
Review of Ultrasonic Testing for Metallic Additively Manufactured Parts
Available to PurchaseSeries: ASM Handbook
Volume: 24A
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.hb.v24A.a0006982
EISBN: 978-1-62708-439-0
... traditional techniques (casting, machining) and therefore with reduced time to market ( Ref 1 , 2 ). Nondestructive testing (NDT) of parts made by AM is a key aspect in this expanding industry. The main NDT method used in the AM industry is x-ray computed tomography (XCT), which consists of recording x-ray...
Abstract
This article focuses on ultrasonic testing (UT) applied to metallic additive manufacturing (AM) parts, presenting the basic principles of UT. It provides a detailed discussion on postprocess UT inspection of powder-bed-fusion-manufactured samples and directed-energy-deposition-manufactured samples.
Book
Series: ASM Handbook
Volume: 24A
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.hb.v24A.9781627084390
EISBN: 978-1-62708-439-0
Book
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.9781627082907
EISBN: 978-1-62708-290-7
Book Chapter
Imaging Methods for Fracture Surface Observation and Interpretation
Available to PurchaseBook: Fractography
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 June 2024
DOI: 10.31399/asm.hb.v12.a0006945
EISBN: 978-1-62708-387-4
..., software and hardware, beam and electronic stability, antivibration, and so on Commercial availability of stable ion sources for dual-beam SEMs and scanning ion microscopes Intense x-ray sources for large- and small-scale computer-aided tomography (CAT) in the form of synchrotron sources down...
Abstract
This article presents a basic overview of technology-driven advances in the imaging of primarily metallic fracture surfaces. It describes various types of microscopes, including scanning electron, dual-beam, ion source, and transmission electron microscopes, and their capabilities. It also covers other useful hardware, such as computer-aided tomography (CAT) and micro-computer-aided tomography (micro-CAT) instruments. The article introduces some of the fracture image postprocessing methods and software, including image registration or alignment, focus stacking, Z-stacking, focal plane merging, and image stitching.
Book Chapter
Pneumatic Extrusion of Biomaterials
Available to PurchaseSeries: ASM Handbook
Volume: 23A
Publisher: ASM International
Published: 12 September 2022
DOI: 10.31399/asm.hb.v23A.a0006893
EISBN: 978-1-62708-392-8
.... Fig. 7 Flowchart from medical data applied to the final part. 3D, three-dimensional; AM, additive manufacturing; CAD, computer-aided design; CT, computed tomography; FEA, finite element analysis MRI, magnetic resonance imaging; STL, standard triangle language. Source: Ref 13 . Copyright © 2019...
Abstract
This article focuses on the pneumatic extrusion-based system for biomaterials. It provides an overview of additive manufacturing (AM) processes, followed by sections covering steps and major approaches for the 3D bioprinting process. Then, the article discusses the types, processes, advantages, limitations, and applications of AM technology and extrusion-based approaches. Next, it provides information on the research on extrusion-based printing. Finally, the article provides a comparison of the extrusion-based approach with other approaches.
Book
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.9781627082136
EISBN: 978-1-62708-213-6
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006668
EISBN: 978-1-62708-213-6
..., sample composition, and the specific signal being detected. Signals are most commonly secondary electrons, backscattered electrons, and x-rays. Other possible signals that can be generated and detected in the SEM include visible light (cathodoluminescence), beam induced current, and Auger electrons...
Abstract
This article provides detailed information on the instrumentation and principles of the scanning electron microscope (SEM). It begins with a description of the primary components of a conventional SEM instrument. This is followed by a discussion on the advantages and disadvantages of the SEM compared with other common microscopy and microanalysis techniques. The following sections cover the critical issues regarding sample preparation, the physical principles regarding electron beam-sample interaction, and the mechanisms for many types of image contrast. The article also presents the details of SEM-based techniques and specialized SEM instruments. It ends with example applications of various SEM modes.
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006677
EISBN: 978-1-62708-213-6
... consists of a stack of axes such as X , Y , and Z for translation and T and R for tilt and rotation. The stacking order will vary from one model of instrument to another, as will the range of motions available. An example of a particular stage concept is show in Fig. 2 . Often the stage...
Abstract
This article is intended to provide the reader with a good understanding of the underlying science, technology, and the most common applications of focused ion beam (FIB) instruments. It begins with a survey of the various types of FIB instruments and their configurations, discusses the essential components, and explains their function only to the extent that it helps the operator obtain the desired results. An explanation of how the components of ion optical column shape and steer the ion beam to the desired target locations is then provided. The article also reviews the many diverse accessories and options that enable the instrument to realize its full potential across all of the varied applications. This is followed by a detailed analysis of the physical processes associated with the ion beam interacting with the sample. Finally, a complete survey of the most prominent FIB applications is presented.
Book Chapter
Post-Processing of Additively Manufactured Metal Parts
Available to PurchaseSeries: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006570
EISBN: 978-1-62708-290-7
... change, surface and volume defects are likely present in a part fabricated by AM. The inevitable internal pores ( Fig. 1 ) are revealed by computed tomography (CT) x-ray scanning on a sample after selective laser melting (SLM). Anisotropic residual stress and shrinkage due to sintering and solidification...
Abstract
This article describes post-processing techniques for machining, finishing, heat treating, and deburring used to remove additive manufacturing (AM) metallic workpieces from a base plate and subsequent techniques to enhance printed workpieces. The AM processes include powder bed fusion, binder jetting, and direct energy deposition. The discussion provides information on powder removal, powder recycling and conditioning, part removal, and part enhancement. The mechanism, applications, advantages, and limitations of mechanical, radiation, and chemical-finishing processes as well as the properties of the resulting material are also covered.
Book Chapter
Process Defects in Metal Additive Manufacturing
Available to PurchaseSeries: ASM Handbook
Volume: 24A
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.hb.v24A.a0006972
EISBN: 978-1-62708-439-0
... tomography combined with high-speed imaging and dynamic x-ray radiography ( Ref 43 ). Lack-of-Fusion Porosity Sources Lack-of-fusion porosity arises during L-PBF when the heat penetration is insufficient to metallurgically bond a newly formed layer (by means of solidification of the melt pool...
Abstract
This article presents a general understanding of causes and possible solutions for defects in the most common metal additive manufacturing (AM) processes: laser powder-bed fusion (L-PBF), laser directed-energy deposition (DED-L), and binder jetting (BJ).
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006681
EISBN: 978-1-62708-213-6
..., nm Radio wave 10 6 –10 12 60 0.00487 Infrared ray 10 3 –10 5 100 0.00387 Visible light 390–760 200 0.00251 Ultraviolet ray 13–390 400 0.00164 X-ray 0.05–10 1000 0.00087 γ-ray 0.005–0.1 … … Source: Ref 1 The primary motivation to use electrons...
Abstract
Transmission electron microscopy (TEM) approach enables essentially simultaneous examination of microstructural features through imaging from lower magnifications to atomic resolution and the acquisition of chemical and crystallographic information from small regions of the thin specimen. This article discusses fundamentals of the technique, especially for solving materials problems. Background information is provided to help understand basic operations and principles, including instrumentation, the physics of signal generation and detection, image formation, electron diffraction, and spectrometry techniques with data analysis.
Book Chapter
Defects in Metal Additive Manufacturing Processes
Available to PurchaseSeries: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006557
EISBN: 978-1-62708-290-7
... to detect defects using x-ray computed tomography and to heal the pores through postprocessing HIP have shown significant improvements to the as-built structural integrity of AM components. Nonetheless, metal AM postprocessing and inspection are both cost- and time-expensive, restricting the widespread use...
Abstract
The formation of defects within additive-manufactured (AM) components is a major concern for critical structural and cyclic load applications. Thus, understanding the mechanisms of defect formation in fusion-based processes is important for prescribing the appropriate process parameters specific to the alloy system and selected processing technique. This article discusses the formation of defects within metal additive manufacturing, namely fusion-based processes and solid-state/sintering processes. Defects observed in fusion-based processes include lack of fusion, keyhole collapse, gas porosity, solidification cracking, solid-state cracking, and surface-connected porosity. The types of defects in solid-state/sintering processes are sintering porosity and improper binder burnout. The article also discusses defect-mitigation strategies, such as postprocess machining, surface treatment, and postprocessing HIP to eliminate defects detrimental to properties from the as-built condition. The use of noncontact thermal, optical, and ultrasound techniques for inspecting AM components are also considered. The final section summarizes the knowledge gap in our understanding of the defects observed within AM components.
Book
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 June 2024
DOI: 10.31399/asm.hb.v12.9781627083874
EISBN: 978-1-62708-387-4
Book
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.9781627083959
EISBN: 978-1-62708-395-9
Book
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.9781627082006
EISBN: 978-1-62708-200-6
1