Effects of Rare Earths on Toughness of 31Mn2SiRE Wear- Resistance Cast Steel

被引：9

作者：

谢敬佩

王爱琴

王文焱

李继文

李洛利

机构：

[1] School of Material Science and Engineering Henan University of Science and Technology

[2] Luoyang 471003 China

[3] School of Material Science and Engineering Henan University of Science and Technology

来源：

JournalofRareEarths | 2006年 / S1期

关键词：

31Mn2SiRE cast steel; wear-resistance steel; mechanical properties; rare earths;

D O I：

暂无

中图分类号：

TG113.2 [金属的性能];

学科分类号：

080502 ;

摘要：

The toughness of 31Mn2SiRE wear-resistance cast steel were increased by means of RE compound modification and high temperature austenitizing. The results show that the microstructures can be refined, needle and network ferrite are eliminated, the dislocation density and the quantity of dislocated martensite are increased remarkably, and the shape and distribution of inclusions are improved by the addition of RE. Therefore, the mechanical properties of the modified steel can be greatly increased, especially the toughness (αK) by 44%, yield strength (σs) by 10%, and elongation (δ5) by 42%.

引用

页码：401 / 404

页数：4