TY - JOUR
T1 - 2%Ni-1%Mo Composite-type Alloyed Steel Powder for Ultra High Strength and High Toughness Sintered Materials
AU - Furukimi, Osamu
AU - Maruta, Keiichi
AU - Abe, Teruyoshi
AU - Takajo, Shigeaki
N1 - Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.
PY - 1990
Y1 - 1990
N2 - The composition of Ni and Mo containing composite-type alloyed steel powders was optimized for the production of ultra high strength, high toughness sintered components via compaction, sintering and heat treatment. A powder with 2%Ni and 1%Mo attained a high tensile strength of 1500MPa and a high unnotched Charpy impact value of 21J, when single-pressed, single-sintered and case hardened. Double-pressed, double-sintered and heat treated compacts made from the same powder showed an extremely high tensile strength of 1920MPa and a high unnotched Charpy impact value of 53J. The sintered compacts before heat treatment remained relatively soft and allowed machining and sizing. The strengthening was attributed to the strain-induced martensitic transformation of Ni-rich austenite.
AB - The composition of Ni and Mo containing composite-type alloyed steel powders was optimized for the production of ultra high strength, high toughness sintered components via compaction, sintering and heat treatment. A powder with 2%Ni and 1%Mo attained a high tensile strength of 1500MPa and a high unnotched Charpy impact value of 21J, when single-pressed, single-sintered and case hardened. Double-pressed, double-sintered and heat treated compacts made from the same powder showed an extremely high tensile strength of 1920MPa and a high unnotched Charpy impact value of 53J. The sintered compacts before heat treatment remained relatively soft and allowed machining and sizing. The strengthening was attributed to the strain-induced martensitic transformation of Ni-rich austenite.
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U2 - 10.2497/jjspm.37.225
DO - 10.2497/jjspm.37.225
M3 - Article
AN - SCOPUS:0025387175
VL - 37
SP - 225
EP - 228
JO - Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
JF - Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
SN - 0532-8799
IS - 2
ER -