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Image
Mechanical work done during each vibration cycle of ultrasonic welding. Sou...
Available to PurchasePublished: 31 October 2011
Image
The three working zones (I, II, III) are shown. Mechanism at work in each i...
Available to PurchasePublished: 01 January 2003
Fig. 2 The three working zones (I, II, III) are shown. Mechanism at work in each is detailed in the text. Tiny electrochemical cell formation in ECG is shown in the insert.
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Image
Effect of annealing temperature on mechanical properties of cold-worked Inc...
Available to PurchasePublished: 01 June 2016
Fig. 20 Effect of annealing temperature on mechanical properties of cold-worked Incoloy 800, 800H, and 800HT. Source: Ref 24
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Image
Influence of cold work on mechanical properties of type 304 stainless steel...
Available to PurchasePublished: 01 December 1998
Fig. 40 Influence of cold work on mechanical properties of type 304 stainless steel. Source: Ref 4
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Influence of cold work on mechanical properties of type 304 stainless steel...
Available to Purchase
in Effects of Composition, Processing, and Structure on Properties of Irons and Steels
> Materials Selection and Design
Published: 01 January 1997
Fig. 41 Influence of cold work on mechanical properties of type 304 stainless steel. Source: Ref 4
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Book Chapter
Introduction to Copper and Copper Alloys
Available to PurchaseSeries: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001065
EISBN: 978-1-62708-162-7
..., corrosion ratings, temper designations, and applications of wrought copper and copper alloys. It also presents an outline of the most commonly used mechanical working and heat treating processes. The copper industry in the United States is broadly composed of two segments: producers (mining, smelting...
Abstract
Copper and copper alloys constitute one of the major groups of commercial metals due to their excellent electrical and thermal conductivities, corrosion and fatigue resistance, ease of fabrication, and good strength. This article lists the types, properties, fabrication characteristics, corrosion ratings, temper designations, and applications of wrought copper and copper alloys. It also presents an outline of the most commonly used mechanical working and heat treating processes. The copper industry in the United States is broadly composed of two segments: producers (mining, smelting, and refining companies) and fabricators (wire mills, brass mills, foundries, and powder plants). The article discusses copper production methods and describes major changes in the structure of the U.S. copper and copper alloys industry.
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004155
EISBN: 978-1-62708-184-9
... Abstract The steam turbine is the simplest and most efficient engine for converting large amounts of heat energy into mechanical work. This article discusses the primary corrosion mechanisms such as corrosion fatigue, stress-corrosion cracking (SCC), pitting, corrosion, and erosion-corrosion...
Abstract
The steam turbine is the simplest and most efficient engine for converting large amounts of heat energy into mechanical work. This article discusses the primary corrosion mechanisms such as corrosion fatigue, stress-corrosion cracking (SCC), pitting, corrosion, and erosion-corrosion, in steam turbines. It illustrates the various causes of the corrosiveness of the steam turbine environments through a Mollier diagram. The article describes the four parts of design disciplines that affect turbine corrosion, namely, mechanical design, heat transfer, flow and thermodynamics, and physical shape. It lists the ways to control the steam and surface chemistry, and design and material improvements to minimize turbine corrosion.
Book Chapter
Metallography and Microstructures of Uranium and Its Alloys
Available to PurchaseSeries: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003780
EISBN: 978-1-62708-177-1
... and mechanical working processes. depleted uranium etching grain structure inclusions macroexamination mechanical working metal flow geometry metallography microexamination microstructure physical metallurgy segregation pattern solidification thin foils transmission electron microscopy...
Abstract
This article discusses the principles of physical metallurgy and metallography of depleted uranium. It describes the techniques involved in the preparation of thin foils for transmission electron microscopy and illustrates the resulting microstructure of uranium and uranium alloys, with the aid of black and white images. The article also provides information on the applications of etching and examination of uranium alloys, at both macro and micro scales, in characterizing the grain structures, segregation patterns, inclusions, and the metal flow geometries produced by solidification and mechanical working processes.
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006503
EISBN: 978-1-62708-207-5
... Abstract This article provides a thorough review of the physical metallurgy of aluminum alloys and its role in determining the properties and from a design and manufacturing perspective. And its role in include the effects of composition, mechanical working, and/or heat treatment on structure...
Abstract
This article provides a thorough review of the physical metallurgy of aluminum alloys and its role in determining the properties and from a design and manufacturing perspective. And its role in include the effects of composition, mechanical working, and/or heat treatment on structure and properties. This article focuses on the effects of alloying and the metallurgical factors on phase constituents, structure, and properties of aluminum alloys. Effects from different combinations of alloying elements are described in terms of relevant alloy phase diagrams. The article addresses the underlying alloying and structural aspects that affect the properties and possible processing routes of aluminum alloys. It provides information on the heat treatment effects on the physical properties of aluminum alloys and the microstructural effects on the fatigue and fracture of aluminum alloys. The important alloying elements and impurities are listed alphabetically as a concise review of major effects.
Image
Coupling between electromagnetic, thermal, mechanical, and metellurgical mo...
Available to Purchase
in Simulation of Microstructural Evolution in Steels
> Fundamentals of Modeling for Metals Processing
Published: 01 December 2009
from phase changes. (5) Phase transformation due to stress induced. (6) Transformation stress due to phase changes. (7) Thermal stress due to temperature changes. (8) Heat generation due to mechanical work. Source: Ref 68
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Book Chapter
Failures Related to Hot Forming Processes
Available to PurchaseSeries: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006835
EISBN: 978-1-62708-329-4
...-die and upset forgings are produced from billets, bar stock, or a preform, all of which have received some previous mechanical working. The major problems associated with melting and casting practice are the development of centerline segregation and porosity and a condition known as scabs...
Abstract
The primary purpose of this article is to describe general root causes of failure that are associated with wrought metals and metalworking. This includes a brief review of the discontinuities or imperfections that may be common sources of failure-inducing defects in the bulk working of wrought products. The article addresses the types of flaws or defects that can be introduced during the steel forging process itself, including defects originating in the ingot-casting process. Defects found in nonferrous forgings—titanium, aluminum, and copper and copper alloys—also are covered.
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005669
EISBN: 978-1-62708-198-6
... alloys and superior wear resistance because of their higher carbon content, which, however, made the task of mechanical working to form wrought high-carbon products more difficult and impractical at that time. In the late 1970s, however, in response to the demand for higher-strength implants with good...
Abstract
This article reviews the concepts considered important for an understanding of the processes used for preparing cobalt-chromium alloy implants, the microstructures resulting from this processing, and the resulting material properties. The review includes solidification of alloys, diffusionless (martensitic) phase transformation as occurs with face-centered cubic to hexagonal close-packed transformation in cobalt-chromium alloys, and stacking faults and twins and their role in this transformation. It also discusses the strengthening mechanisms that are responsible for the mechanical properties of cast and wrought cobalt alloys. The article contains tables that list the commonly used cobalt alloys and their biomedical applications and chemical compositions. It discusses the mechanical and corrosion properties of cobalt alloys, and provides a description of the microstructure of cobalt alloys.
Book Chapter
Zirconium and Hafnium
Available to PurchaseSeries: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003149
EISBN: 978-1-62708-199-3
... mechanical working at lower temperatures. Heating at temperatures near the α-β transition, or in the α + β region, cause migration of many impurities to grain boundaries. This migration impairs ductility and corrosion resistance, particularly in zirconium alloys. However, it is beneficial in some...
Abstract
This article discusses the general characteristics, primary and secondary fabrication methods, product forms, and corrosion resistance of zirconium and hafnium. It describes the physical metallurgy of zirconium and its alloys, providing details on allotropic transformation and anisotropy that profoundly influences the engineering properties of zirconium and its alloys. Tables listing the values for chemical composition and tensile properties for nuclear and nonnuclear grades of zirconium are also provided.
Book Chapter
Deformation and Recrystallization of Titanium and Its Alloys
Available to PurchaseSeries: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006282
EISBN: 978-1-62708-169-6
... and distribution of dislocations are affected by chemistry, mechanical working, and heat treatment. These dislocations reduce the stress necessary for initiating slip. This often is compared to the movement of a large rug across a floor. The rug is difficult to move if shifted as one piece, like the layer of atoms...
Abstract
This article provides an in-depth treatment on the deformation and recrystallization of titanium alloys. It provides information on the predominant mode of plastic deformation that occurs in titanium in terms of the most common crystallographic planes. The article explains the relationship of the recovery process to the recrystallization, grain-growth process, and the effects of time and temperature on stress relief. It describes the factors that influence the rate of recrystallization and the conditions required for neocrystallization to occur. The article explains the mechanism of strain hardening and its effects on the mechanical properties of titanium alloys. It also discusses the factors that influence the superplasticity of titanium alloys.
Book Chapter
Failures Related to Metalworking
Available to PurchaseSeries: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003507
EISBN: 978-1-62708-180-1
... are produced from billets, bar stock, or a preform that has received some previous mechanical working. The product may be suitable for immediate application, but in many cases, it serves as the starting material for another (so-called secondary) deformation process, such as drawing, hot forging, cold forging...
Abstract
This article describes the general root causes of failure associated with wrought metals and metalworking. This includes a brief review of the discontinuities or imperfections that may be the common sources of failure-inducing defects in bulk working of wrought products. The article discusses the types of imperfections that can be traced to the original ingot product. These include chemical segregation; ingot pipe, porosity, and centerline shrinkage; high hydrogen content; nonmetallic inclusions; unmelted electrodes and shelf; and cracks, laminations, seams, pits, blisters, and scabs. The article provides a discussion on the imperfections found in steel forgings. The problems encountered in sheet metal forming are also discussed. The article concludes with information on the causes of failure in cold formed parts.
Book Chapter
Introduction to the Mechanical Behavior of Nonmetallic Materials
Available to PurchaseSeries: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003255
EISBN: 978-1-62708-176-4
... crystalline solids, inorganic noncrystalline solids, and polymers. The article describes the various strengthening mechanisms of crystalline solids, namely, work hardening, solid-solution hardening, particle/precipitation hardening, and grain size hardening. Deformation and strengthening of composite...
Abstract
This article reviews the fundamental relationships between microstructure and mechanical properties for major classes of nonmetallic engineering materials: metals, ceramics and glasses, intermetallic compounds, polymers, and composites. It details the structures of inorganic crystalline solids, inorganic noncrystalline solids, and polymers. The article describes the various strengthening mechanisms of crystalline solids, namely, work hardening, solid-solution hardening, particle/precipitation hardening, and grain size hardening. Deformation and strengthening of composite materials, polymers, and glasses are reviewed. The article concludes with information on the two important aspects of the mechanical behavior of any class of engineering material: fatigue response and fracture resistance.
Book Chapter
Modeling and Simulation of the Heat Treatment of Aluminum Alloys
Available to PurchaseSeries: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006271
EISBN: 978-1-62708-169-6
... curve dependent on microstructure). Stresses and strains influence temperature (4: mechanical work) and phase transformation (6: mechanically-induced transformation). Input data are component dimensions, heat treatment parameters (especially heat-transfer coefficients), and materials data; output data...
Abstract
Heat treatment simulation helps to predict heat treatment results such as component microstructures, properties, residual stresses, and distortion, and thereby assists in reducing experimental effort in defining heat treatment parameters. This article discusses the modeling and simulation of age hardening as being the most important heat treatment to strengthen aluminum alloys. It provides information on the heat treatment simulation model, the yield strength model based on the responsible strengthening mechanisms, and the flow curve model based on mechanical tests. The article also discusses simulation of the quenching process, and provides examples for aluminum quenching simulation.
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001059
EISBN: 978-1-62708-162-7
... in the physical metallurgy of aluminum alloys include the effects of composition, mechanical working, and/or heat treatment on mechanical and physical properties. In terms of properties, strength improvements is a major objective in the design of aluminum alloys because the low strength of pure aluminum (about...
Abstract
Aluminum mill products are those that have been subjected to plastic deformation by hot- and cold-working mill processes such as rolling, extruding, and drawing, either singly or in combination. Microstructural changes associated with the working and with any accompanying thermal treatments are used to control certain properties and characteristics of the worked, or wrought, product or alloy. This article discusses the designation system, classification, product forms, corrosion and fabrication characteristics, and applications of wrought aluminum alloys. Commercial wrought aluminum products are divided into flat-rolled products (sheet, plate, and foil); rod, bar, and wire; tubular products; shapes; and forgings. The article discusses factors affecting the strengthening mechanisms, fracture toughness, and physical properties of aluminum alloys, in addition to the effects of alloying on the physical and mechanical properties. Important alloying elements and impurities are listed alphabetically as a concise review of major effects.
Book Chapter
Simulation of Microstructural Evolution in Steels
Available to PurchaseSeries: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005414
EISBN: 978-1-62708-196-2
... by controlled cooling. In some cases, such as hot strip rolling, accelerated water cooling is used to attain the desired microstructure and properties in the product. By means of these controlled processing steps during hot working, a broad range of microstructure and mechanical properties can be achieved...
Abstract
Computer simulation of microstructural evolution during hot rolling of steels is a major topic of research and development in academia and industry. This article describes the methodology and procedures commonly employed to develop microstructural evolution models to simulate microstructural evolution in steels. It presents an example of the integration of finite element modeling and microstructural evolution models for the simulation of metal flow and microstructural evolution in a hot rolling process.
Book Chapter
Alloy and Temper Designation Systems for Aluminum
Available to PurchaseSeries: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003122
EISBN: 978-1-62708-199-3
... mechanical properties have been stabilized by room-temperature aging. It also applies to products that are flattened or straightened after cooling from the shaping process, for which the effects of the cold work imparted by flattening or straightening are not accounted for in specified property limits. T2...
Abstract
This article describes the systems for designating the aluminum and aluminum alloys that incorporate the product forms (wrought, casting or foundry ingots) and its respective temper for strain-hardened alloys, heat-treatable alloys and annealed alloys. All these systems are covered by American National Standards Institute (ANSI) standard H35.1. Furthermore, the article provides a short note on the designation of unregistered tempers.
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