Effect of cooling rate on the structure and properties of low-carbon tube steel

被引：0

作者：

I. Yu. Pyshmintsev

A. N. Boryakova

M. A. Smirnov

机构：

[1] Russian Research Institute of the Pipe Industry,

[2] South Ural State University,undefined

来源：

Metallurgist | 2008年 / 52卷

关键词：

tube steel; controlled rolling; cooling rate; microstructure; mechanical properties;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The authors construct the thermokinetic diagram describing the decomposition of supercooled austenite in steel 05G2MFB and analyze the effect of cooling rate on the structure of this steel. The mechanical properties of the steel are studied after cooling from the austenite region at rates from 0.1 to 52°C/sec, making it possible to obtain ferritic-pearlitic and bainitic structures with different ratios of the micro-components. It is shown that the most favorable set of properties is obtained by a cooling regime that forms a structure composed mainly of bainite. Plastic deformation of the steel prior to its controlled cooling additionally increases its strength characteristics while also increasing impact toughness at minus temperatures.

引用

页码：464 / 469

页数：5

共 7 条

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