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low-alloy water-atomized iron powders

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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
...Abstract Abstract This article briefly reviews the production methods and characteristics of plain carbon and low-alloy water-atomized iron and steel powders, high-porosity iron powder, carbonyl iron powder, and electrolytic iron powder. It emphasizes on atomized powders, because...
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
... of the powder decreases significantly with decreasing pouring or atomizing temperature ( Ref 2 ). In the interest of low-oxygen-content powders, the atomization tank is partly filled with water and purged with nitrogen; thus, air leakage into the tank is avoided. Nitrogen purging of the atomization chamber...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006084
EISBN: 978-1-62708-175-7
... packing densities and low surface areas, compared with these other types of powder. This means they have good flow characteristics, good compressibilities, and lower sintering activities than other types. Fig. 3 Examples of atomized powders. (a) Water-atomized copper. (b) Water-atomized iron...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006122
EISBN: 978-1-62708-175-7
... pressing hydrogen reduction hydrometallurgical process nickel nickel alloys nickel powders oil and gas industry powder metallurgy water atomization A LARGE PORTION OF PURE NICKEL POWDERS is used in production of alloys, primarily low alloy steels, produced by powder metallurgy processing...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003789
EISBN: 978-1-62708-177-1
...-Alloyed Ferrous Powders Austenitic Stainless Steels Hybrid Alloys Sintered Stainless Steels Carbonyl Iron Powders Electrolytic Iron Powder P/M Steels from Admixed Powders Direct Reduced Sponge Iron or Water-Atomized Iron Powders Iron Powders Pressed-and-Sintered Steels...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006032
EISBN: 978-1-62708-175-7
... psi Reduced iron None 6.47 32 4600 1 6.57 23 3300 Electrolytic copper None 7.97 67 9700 1 8.11 35 5100 Source: Ref 10 Fig. 15 Effect of admixed lubricant on green strength of water-atomized 4600 low-alloy steel powder The effect of lubricants on green...
Book Chapter

By Erhard Klar
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003185
EISBN: 978-1-62708-199-3
... of powders. Source: Ref 5 Fig. 6 Effect of admixed lubricant on green strength of water-atomized 4600 low-alloy steel powder. Source: Ref 5 Fig. 7 Effect of oxide inclusions on impact toughness of fully dense 4340 steel processed by hot forging. (The smaller inclusions are more...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003135
EISBN: 978-1-62708-199-3
... 99.3–99.6 0.2–0.6 0.03–0.1 Irregular; porous Medium Water atomized 99.3–99.7 0.1–0.3 0.01–0.03 Irregular to spherical; solid Low Hydrometallurgical 97–99.5 0.2–0.8 0.03–0.8 Irregular agglomerates Very high Compositions of some common copper-base friction materials Table 7...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001070
EISBN: 978-1-62708-162-7
... Medium to high Oxide reduced 99.3–99.6 0.2–0.6 0.03–0.1 Irregular; porous Medium Water atomized 99.3–99.7 0.1–0.3 0.01–0.03 Irregular to spherical; solid Low Hydrometallurgical 97–99.5 0.2–0.8 0.03–0.8 Irregular agglomerates Very high Atomization Reduction of Oxide...
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
... and nickel powders produced by the carbonyl process are also used. Gas-atomized and carbonyl powders are considerably more expensive than water-atomized powder. Metal injection molding parts for magnetic applications are made of iron-, nickel-, and cobalt-alloy systems. Fine (10 μm) pure gas-atomized...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006100
EISBN: 978-1-62708-175-7
... manufactured using either mechanical or chemical methods. Water atomization of molten iron or alloy is the primary mechanical manufacturing method today (2015), while chemical reduction of iron oxides is the least expensive large-scale chemical manufacturing method. However, the atomization and reduction...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003112
EISBN: 978-1-62708-199-3
... metallurgy (P/M) material for structural parts. This article reviews low to medium density iron and low-alloy steel parts produced by the pressing and sintering technology. It explains different powder production methods, including Hoeganaes process, Pyron process, atomization of liquid metal, thermal...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006079
EISBN: 978-1-62708-175-7
... for welding applications is typically manufactured from chemical reduction and water atomization processes. The chromium, manganese, ferro-alloys, and carbide powders are manufactured by mechanical size reduction. Powder flow, particle shape, apparent density, and size distribution are very important...
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
... to press and sinter mixtures of elemental powders of iron, chromium, and nickel. Very high sintering temperatures and long sintering time periods were necessary to achieve homogeneous composition and uniform microstructure. The process was uneconomical. In the late 1940s, water-atomized stainless steel...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006090
EISBN: 978-1-62708-175-7
... atomized iron powder. The test was performed in a one-liter (34 oz) glass jar at 20 °C (68 °F) where a sachet containing 4 g (0.14 oz) mixture with 1 g water was placed. Except for the atomized iron powder, all of the tested iron powders performed well as the active component to reduce the oxygen content...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005727
EISBN: 978-1-62708-171-9
... for repair and wear applications that require a hard ground finish Fe 17Cr 2Ni 0.18C similar to 431 steel Fe 17Cr 12Ni 2.5Mo 2.3Si 0.03C similar to 316L steel Water atomized and gas atomized Austenitic-type stainless steel For protection against corrosion, cavitation, low-temperature particle erosion...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003217
EISBN: 978-1-62708-199-3
... work level to accommodate sludge buildup. Water rinse tanks and associated equipment, including (a) steam coils or other heating media, (b) piping, and (c) screens, can be constructed of low-carbon steel. Rinse tanks for certain parts sometimes require drum-rotating devices. Drying...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006139
EISBN: 978-1-62708-175-7
... electron micrograph of copper nanowires Prealloyed bronze powders are made commercially by water atomizing. Application is more extensive in Europe, where 90/10 prealloyed bronze powders are incorporated in bronze premixes for bearing manufacture. Low green strength due to high apparent density (3.2...
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
... oxides. Original magnification: 5200× Fig. 1 Scanning electron microscope images of a water-atomized 316L powder. (a) At low magnification. Original magnification: 100×. (b) At high magnification. Original magnification: 1950× STAINLESS STEEL POWDERS produced via water atomization...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003217
EISBN: 978-1-62708-199-3
... to accommodate sludge buildup. Rinse Tanks Water rinse tanks and associated equipment, including (a) steam coils or other heating media, (b) piping, and (c) screens, can be constructed of low-carbon steel. Rinse tanks for certain parts sometimes require drum-rotating devices. Drying Equipment...