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Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006125
EISBN: 978-1-62708-175-7
... Abstract The residual porosity in sintered refractory metal ingots is usually eliminated by different densification processes, such as thermomechanical processes. This article focuses on thermomechanical processing of tungsten, molybdenum, and tantalum. It provides an overview of liquid-phase...
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Published: 30 September 2015
Fig. 5 Process steps of Homogenous Metals, Inc. to produce powdered metal billets. Used with permission from MIT More
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Published: 30 September 2015
Fig. 8 Options for processing metal powders to full density. Source: Ref 12 More
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Published: 01 January 1993
Fig. 33 Schematic of the bulkwelding process using metal powder joint fill. Source: Ref 9 More
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Published: 30 June 2023
Fig. 4 Typical defects in a metal powder-bed fusion process More
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Published: 30 June 2023
Fig. 11 Process chain map for metal powder-bed fusion. AM, additive manufacturing More
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Published: 01 January 1990
Fig. 2 Processing stages in production of metal powders by atomization More
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006042
EISBN: 978-1-62708-175-7
... Abstract This article discusses metal powder processing via hot isostatic pressing (HIP) and HIP cladding when metal powders are being employed in the cladding process. It traces the history of the process and details the equipment, pressing cycle, and densification mechanisms for HIP...
Series: ASM Handbook
Volume: 24A
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.hb.v24A.a0006992
EISBN: 978-1-62708-439-0
... metal AM, including methods to identify pores and voids in AM materials, are the focus. The article reviews flaw formation in laser-based powder-bed fusion, summarizes sensors used for in situ process monitoring, and outlines advances made with in situ process-monitoring data to detect AM process flaws...
Series: ASM Handbook
Volume: 24A
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.hb.v24A.a0006985
EISBN: 978-1-62708-439-0
... manufactured metal parts aluminum alloys fatigue failure laser powder bed fusion nickel-base superalloys process-induced defects titanium alloys Fatigue as a Critical Performance Metric Fatigue failure is a critical performance metric for additively manufactured (AM) metal parts, especially those...
Book Chapter

By Robert Pilliar, Scott D. Ramsay
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. biomedical applications cast cobalt alloys cast cobalt-chromium-molybdenum alloys chemical composition cobalt-chromium alloy implants coring corrosion properties crystal structure diffusionless phase transformation lattice defects mechanical properties metal powder processing...
Book Chapter

By Arnold Satow
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001268
EISBN: 978-1-62708-170-2
... treatments, and waste treatment of mechanical plating. copper alloys ferrous metals galvanic properties glass beads hydrogen embrittlement lead mechanical plating mechanical plating equipment mechanical properties metallic dust metallic powder process capability stainless steel tumbling...
Book Chapter

By Joseph Strauss
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006556
EISBN: 978-1-62708-290-7
... ). Correspondingly, there are many computer-aided design software systems that specifically address jewelry design. Direct Additive Manufacturing Methods of Precious Metals Precious Metal Alloy Systems and Powder Production Direct metal AM includes all of the processes that build a part printed from metal...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006544
EISBN: 978-1-62708-290-7
... handling, compaction, and part finishing operations, many safety and environmental risks exist. Note that this article does not address any of the science or engineering for powdered metal formulation, chemistry, or processing. Rather, this article highlights the types of safety hazards that can exist...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006465
EISBN: 978-1-62708-190-0
... processes are used for the production of metal powders for AM and have been shown to have differing effects on final part porosity. Chemical composition can be evaluated with a number of standard methods, including methods with specific applications (inert gas fusion) and more generalized methods, such as x...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006087
EISBN: 978-1-62708-175-7
... Abstract This article provides a discussion on the process descriptions, processing conditions, and processing variables of the most common chemical methods for metal powder production. These methods include oxide reduction, precipitation from solution, and thermal decomposition. Methods...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006445
EISBN: 978-1-62708-190-0
... Industries Federation , Princeton, NJ , p 9–3 – 9–16 3. Bond L.J. , Gray J.N. , Margetan F.J. , Ultrata D. , and Anderson I.E. , NDE for Adding Value to Materials from Metal Powder Processing , Advances in Powder Metallurgy & Particulate Materials – 2014 , compiled...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006838
EISBN: 978-1-62708-329-4
... considerations, and quality assurance. The emphasis is on the design and metallurgical aspects for the two main types of metal AM processes: powder-bed fusion (PBF) and directed-energy deposition (DED). The article also describes the processes involved in binder jet sintering, provides information on the design...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006078
EISBN: 978-1-62708-175-7
... for production of titanium metal. These emerging reduction technologies are depicted in the study performed for the U.S. Department of Energy and Oak Ridge National Laboratory by EHK Technologies ( Ref 2 ). Titanium Powder Production Processes Titanium Sponge Efforts to produce low-cost powder may...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006086
EISBN: 978-1-62708-175-7
... Abstract Various powder production processes allow precise control of the chemical composition and physical characteristics of powders and allow tailoring of specific attributes for targeted applications. Metal powders are produced by either mechanical methods or chemical methods. The commonly...