Effects of Rare Earths on Toughness of 31Mn2SiRE Wear-Resistance Cast Steel
来源期刊：JOURNAL OF RARE EARTHS2006年增刊第2期
论文作者：Li Jiwen Wang Wenyan Xie Jingpei Li Luoli Wang Aiqin
Key words：31Mn2SiRE cast steel; wear-resistance steel; mechanical properties; rare earths;
Abstract: 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%.
Li Jiwen1，Wang Wenyan1，Xie Jingpei1，Li Luoli1，Wang Aiqin1
(1.School of Material Science and Engineering, Henan University of Science and Technology, Luoyang 471003, China)
Abstract: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%.
Key words:31Mn2SiRE cast steel; wear-resistance steel; mechanical properties; rare earths;
【全文内容正在添加中】
