Inclusion Modification with Mg Treatment for 35CrNi3MoV Steel

作     者：Fu, J Yu, YG Wang, AR Chen, BP Sun, WS 

作者机构：Univ Sci & Technol Beijing Beijing 100083 Peoples R China Inner Mongolia Met Mat Res Inst Baotou 014034 Peoples R China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：1998年第14卷第1期

页      面：53-56页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 0817[工学-化学工程与技术] 0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0802[工学-机械工程] 070301[理学-无机化学] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

主　　题：Steel metallurgy 

摘      要：The effects of Mg on the inclusion characteristics of 35CrNi3MoV steel have been studied. The results show that Mg treatment reduces obviously the amount of inclusion in the steel. Magnesium and oxygen in liquid steel form dispersed fine particles of MgO, to which other oxides or sulphides nucleated at heterogeneity and grown during solidification. In this way the inclusions are modified. The small spherical inclusions containing MgO have been observed in the Mg treated steel in contrast to the large angular inclusions with Al2O3 in the conventional steel. Especially the elongated MnS inclusion is replaced by small MgS . MgO or MgS. MnS . MgO complex inclusion. The formation of inclusions have been discussed.