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powder metallurgy stainless steels

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Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006098
EISBN: 978-1-62708-175-7
... Abstract This article describes the physical properties of powder metallurgy (PM) stainless steels. These include thermal diffusivity, conductivity, thermal expansion coefficient, Poisson's ratio, and elastic modulus. The article contains a table that lists the characteristics of various grades...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006066
EISBN: 978-1-62708-175-7
... Abstract Stainless steels are highly alloyed materials in comparison to most other popular powder metallurgy (PM) materials, such as low-alloy steels, copper alloys, and aluminum alloys. This article provides an overview of the history of PM stainless steels. aluminum alloys copper...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006119
EISBN: 978-1-62708-175-7
... Abstract Powder metallurgy (PM) stainless steels, as with conventional PM steels, are often used in the as-sintered condition. In addition to cost considerations, minimization of postsinter handling and secondary operations is also preferred because it reduces the potential for contamination...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006120
EISBN: 978-1-62708-175-7
... Abstract This article describes the factors influencing the room-temperature and elevated-temperature mechanical properties of powder metallurgy (PM) stainless steels. It contains tables that list the mechanical property specifications of the Metal Powder Industries Federation (MPIF) Standard...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006113
EISBN: 978-1-62708-175-7
... Abstract This article reviews various test methods used for evaluating the corrosion resistance of powder metallurgy stainless steels. These include immersion testing, salt spray testing, and electrochemical testing. The article discusses the factors that affect corrosion resistance of sintered...
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Published: 30 September 2015
Fig. 21 Corrosion resistance of four ferritic powder metallurgy stainless steels in a 96 h salt spray test, as a function of sintered density. Source: Ref 25 More
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Published: 30 September 2015
Fig. 3 Powder metallurgy stainless steel bracket for automotive rearview mirror More
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Published: 30 September 2015
Fig. 8 Powder metallurgy stainless steel hot exhaust gas oxygen bosses. Courtesy of SSI Technologies More
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006068
EISBN: 978-1-62708-175-7
... the two types of quality assurance testing measures for powder metallurgy stainless steels: tests for powder contamination and tests of chemical and physical properties. annealing chemical properties drying gas atomization lubricating physical properties powder characteristics powder...
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Published: 30 September 2015
Fig. 8 Powder metallurgy (PM) stainless steel weld variation. (a) Unacceptable weld quality associated with high interstitial gas levels. (b) Weld microstructure representing the same weld parameters but a hydrogen-sintered, low-interstitial PM stainless boss More
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Published: 01 December 2004
Fig. 38 The microstructure of powder metallurgy 304 stainless steel plus 1.75% B for nuclear waste containment. (a) Etched with waterless Kalling's reagent. (b) Etched with waterless Kaling's reagent but heavier than (a) to reveal the grain boundaries More
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006118
EISBN: 978-1-62708-175-7
..., and transverse rupture strength are also provided. These data are published in MPIF's Material Standard No 35. Additional details and the mechanical property specifications can be found in the article “Mechanical Properties of Powder Metallurgy Stainless Steels ” in this Volume. The four selected sintering...
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Published: 30 September 2015
Fig. 2 Effect of sintering temperature on the room-temperature yield strength of hydrogen-sintered 304L. Source: E. Klar and P.K. Samal, Powder Metallurgy Stainless Steels: Processing, Microstructures, and Properties , ASM International, 2007, p. 115 More
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006067
EISBN: 978-1-62708-175-7
... composition austenitic stainless steel duplex stainless steel ferritic stainless steel iron-chromium partial phase diagram martensitic stainless steel microstructure powder metallurgy precipitation-hardening stainless steel stainless steels STAINLESS STEELS are primarily alloys of iron...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003119
EISBN: 978-1-62708-199-3
... Abstract Stainless steel powder metallurgy (P/M) parts represent an important and growing segment of the P/M industry. This article describes the processing, properties, and composition of medium-density and high-density P/M stainless steels. Medium-density materials are processed by pressing...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006097
EISBN: 978-1-62708-175-7
... compacts ( Fig. 1 ). Also, in comparison to gas-atomized powders, these powders are significantly lower in cost. This fact, in combination with the near-net shape capability of powder metallurgy (PM), makes the PM process commercially viable. A shortcoming of the water-atomized stainless steel powders...
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
.... The article describes the available process routes for fabricating products using HIP and the steps involved in the production of a part via direct HIP of encapsulated gas-atomized spherical powder. It concludes with information on the microstructures of 316L stainless steel HIP powder metallurgy valve body...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006110
EISBN: 978-1-62708-175-7
... , p 833 8. Sanderow H.I. , Vacuum Sintering of P/M Stainless Steel Components , Modern Developments in Powder Metallurgy , Vol 11 , Metal Powder Industries Federation , 1976 , p 229 9. Svilar M. and Ambs H. , NOC Precipitation During the Sintering of Austenitic...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003835
EISBN: 978-1-62708-183-2
... Abstract This article provides a detailed discussion on the most commonly employed tests and specific examples of the use of these tests in evaluating the corrosion resistance of powder metallurgy (P/M) stainless steels. It describes the influence of various processing parameters...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006057
EISBN: 978-1-62708-175-7
... components. The powder is magnetically aligned, pressed, and sintered to obtain powder compacts with maximum magnetization. Soft magnetics based on iron and stainless steel powders and rare earth permanent magnets are discussed in this article. Basic Magnetism In simple terms, magnetism is a field...