Low-Alloy Powder Trip-Steels

被引：0
作者：
Alexander A. Shatsov
机构：
[1] Powder Materials Science Center,
来源：
Powder Metallurgy and Metal Ceramics | 2004年 / 43卷
关键词：
low-alloy steel; metastable austenite; iron powder; concentration inhomogeneity; mechanical properties;
D O I：
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中图分类号：
学科分类号：
摘要：
The structure and properties of low-alloy austenitic steels prepared by hot compaction are studied. It is shown that concentration inhomogeneity is not always a reason for reduced mechanical properties. A high level of structural strength and dimensional accuracy may be achieved for powder steels with a structure of metastable austenite. An improvement in the main properties of concentration-inhomogeneous trip-steels is caused by phase transformations on fracture surfaces under load. Use of iron powder with the minimum concentration of associated impurities makes it possible to realize to a considerable extent the potential of concentration-inhomogeneous trip-steels.
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页码：27 / 34
页数：7
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