Effects of Rare Earths on Toughness of 31Mn2SiRE Wear- Resistance Cast Steel
来源期刊：Journal of Rare Earths2006年第S1期
论文作者：谢敬佩 王爱琴 王文焱 李继文 李洛利
文章页码：401 - 404
摘 要：<正>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%.
谢敬佩，王爱琴，王文焱，李继文，李洛利
摘 要：<正>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%.
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