Structure and Properties of Steel 40Kh2N2MA After Thermomechanical Treatment with Martensitic-Bainitic Transformation of Austenite

被引：0
|
作者：
A. I. Popelyukh
A. A. Nikulina
机构：
[1] Novosibirsk State Technical University,
来源：
Metal Science and Heat Treatment | 2019年 / 60卷
关键词：
steel; martensite; thermomechanical treatment; strength; crack resistance;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Special features of structure formation in steel 40Kh2N2MA are studied after a high-temperature thermomechanical treatment with martensitic-bainitic transformation of austenite. It is shown that the treatment produces a mixed structure represented by alternating extended regions of tempered martensite and lower bainite. The treatment raises substantially the impact toughness and the crack resistance of the steel. The process is the most effective for hardening alloy steels with enhanced stability of supercooled austenite.
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页码：666 / 673
页数：7
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