Characteristics of chromium-containing alloyed steel powders with high wear resistance

被引：0
|
作者：
Ogura, Kuniaki [1 ]
Furakimi, Osamu [1 ]
Yano, Koji [1 ]
Minegishi, Toshiyuki [1 ]
机构：
[1] Kawasaki Steel Corp, Japan
来源：
Kawasaki Steel Technical Report | 1993年 / 29期
关键词：
Chromium - Compressibility - Shrinkage - Sintering - Steel powder metallurgy - Wear resistance;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Alloyed steel powders containing Cr have been developed for the production of heavy-duty structural parts with high wear resistance. KIP 4100V is a low-oxygen pre-alloyed powder containing 1%Cr-0. 7%Mn-0.3%Mo, and provides high compressibility. Produced by a water-atomizing and vacuum-annealing process, KIP4100V attains a tensile strength of more than 1100 MPa after carburizing. Composite-type Cr-containing alloyed steel powder, which contains 1% pre-alloyed Cr and 1% composite-type alloyed Mo to improve the compressibility of Cr-containing powders, attains a compressibility of 7.18 MPa when pressed at 686 MPa, and a higher tensile strength than that of KIP4100V after bright-quenching at 1420 MPa, Its wear resistance is comparable to that of KIP4100V, and is more than one hundred times greater than that of Ni-containing composite-type alloyed steel powder. The sintering shrinkage of the composite-type Cr-containing alloyed steel powder is suppressed due to transient liquid-phase sintering, and the dimensional change during sintering is very small.
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页码：30 / 37
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