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ferrous powders

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Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006116
EISBN: 978-1-62708-175-7
... on carefully prepared planar (two-dimensional) surfaces. This article discusses the preparation sequence of ferrous powders, which is normally separated into several well-defined steps: sample selection, sectioning, mounting, grinding, polishing, drying, and chemical etching and/or coating. It provides several...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006101
EISBN: 978-1-62708-175-7
... Abstract This article summarizes the general classification, mechanical properties, and applications of ferrous powder metallurgy (PM) materials for parts production. It discusses four principal ferrous PM alloy types: admixed elemental alloys, diffusion alloys, prealloys, and hybrid alloys...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001044
EISBN: 978-1-62708-161-0
... mechanical properties. cold re-pressing ferrous powder metallurgy materials heat treatment infiltration powder compacting powder forging powder preparation secondary operations sintering POWDER METALLURGY (P/M) in its simplest form consists of compressing metal powders in a shaped die...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003112
EISBN: 978-1-62708-199-3
... with the mechanical and physical properties of ferrous P/M materials, which may depend on certain factors, namely microstructure, porosity, density, infiltration, re-pressing, chemical composition, and heat treatment. carbonyl iron powders compaction electrolytic iron powders ferrous powders mechanical...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003113
EISBN: 978-1-62708-199-3
... powder forging process considerations FERROUS PARTS of near and full theoretical density can be produced by a variety of thermomechanical methods. These methods involve various amounts of heat and mechanical work to aid densification of the powder mass. For production of low-alloy steel parts...
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
... Abstract High-temperature sintering of ferrous components continues to be important in the powder metallurgy (PM) industry. Improvements in both production rates and properties are possible as sintering temperatures increase above 1120 deg C. This article provides an overview of the different...
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Published: 30 September 2015
Fig. 1 As-sintered properties of some admixed ferrous powder metallurgy materials More
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Published: 30 September 2015
Fig. 2 Heat treated properties of some admixed ferrous powder metallurgy materials More
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Published: 30 September 2015
Fig. 3 Compressibility curves for aluminum, copper, and ferrous-base powders, demonstrating the highly malleable response of aluminum powders More
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Published: 30 November 2018
Fig. 3 Compressibility curves for aluminum, copper, and ferrous-based powders, demonstrating the highly malleable response of aluminum powders More
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006081
EISBN: 978-1-62708-175-7
... widely used materials for ferrous powder metallurgy. The article provides information on the properties and applications of these powders. It also includes an overview of diffusion alloying, basics of admixing, and bonded premixes. carbonyl iron powder diffusion alloying diffusion bonding...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003245
EISBN: 978-1-62708-199-3
..., namely mounting, grinding, polishing, and etching involved in the microstructural analysis of carbon and alloy steels, case hardening steels, cast iron, ferrous powder metallurgy alloys, wrought and cast stainless steels, tool materials, steel castings, iron-chromium-nickel heat-resistant casting alloys...
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
... in density uniformity, weight variation, alloy homogeneity, and dimensional control of PM parts. Fig. 3 Alloy distribution. (a) Regular premix. (b) Segregation-free premix with powder binder and bleeding Ferrous and Nonferrous Powders Metal powders produced by mechanical and chemical methods...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006019
EISBN: 978-1-62708-175-7
... users of the powder metallurgy (PM) parts. This is especially important in the automotive industry where over 70% of the ferrous structural parts produced by PM are used. When considering standard tests it is important to understand the precision of the test in question. How repeatable is the test...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006022
EISBN: 978-1-62708-175-7
... of ferrous PM parts, they have lower ductility and reduced impact resistance compared with wrought steels. The majority of PM parts are porous and consideration must be given to this when performing finishing operations. Metal Powders Metal powders come in many different shapes and sizes ( Fig. 2...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006567
EISBN: 978-1-62708-290-7
... cannot be effectively produced by grinding or conventional (gas and/or liquid) atomization. Fig. 1 Approximate ranges of useful particle sizes and world production of different melt-atomized alloys. Source: Ref 2 Most ferrous powders are currently produced by water atomization of liquid...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003988
EISBN: 978-1-62708-185-6
..., alloy development, and inclusion assessment; and process considerations, such as process stages, tool design, and secondary operations; of ferrous alloy powder forging. The mechanical properties of powder forged materials are also reviewed. The article discusses the quality assurance tests for powder...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006111
EISBN: 978-1-62708-175-7
... Sintering of Ferrous Materials Pressed and sintered iron-base materials represent the largest segment of the PM parts industry. Ferrous PM parts are made from iron powders, alloy steel powders, or mixtures of iron and graphite powders, iron (or steel) and copper powders, or iron, copper, and graphite...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006018
EISBN: 978-1-62708-175-7
.... This article reviews some of the diverse and emerging applications of ferrous and nonferrous powders. It also discusses the functions of copier powders and the processes used frequently for copier powder coating. copier powder coating electrical application environmental remediation market ferrous...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001306
EISBN: 978-1-62708-170-2
... Abstract Specialty steels encompass a broad range of ferrous alloys noted for their special processing characteristics (powder metallurgy alloys), corrosion resistance (stainless steels), wear resistance and toughness (tool steels), high strength (maraging steels), or magnetic properties...