Special features of formation of structure and properties of low-carbon martensitic steel 12Kh2G2NMFT

被引：0

作者：

Kamenskikh, AP ^{[1
]}

Zayats, LT ^{[1
]}

Kleiner, LM ^{[1
]}

Simonov, YN ^{[1
]}

机构：

[1] Perm State Tech Univ, Perm, Russia

来源：

METAL SCIENCE AND HEAT TREATMENT | 2003年 / 45卷 / 3-4期

关键词：

Mechanical Property; Martensite; Ductility; Impact Toughness; Isothermal Condition;

D O I：

10.1023/A:1024507302729

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The structure and mechanical properties of steel 12Kh2G2NMFT after continuous cooling at a rate of 600 - 0.035 K/sec and after cooling with isothermal holds in a temperature range of 300 - 650degreesC are investigated. It is shown that a lath martensite structure with a high level of strength and ductility is formed in a wide range of cooling conditions. The decrease in the impact toughness observed under isothermal conditions in a narrow temperature range below M-i (360 - 410degreesC) is shown to be connected with the processes of tempering of freshly formed isothermal martensite.

引用

页码：88 / 90

页数：3

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