冶炼工艺对H13钢组织和力学性能的影响  

Effect of Smelting Process on Microstructure and Mechanical Property of H13 Steel

作　　者：刘振天 周健[2] 马党参[2] 秋立鹏 刘宝石 

机构地区：[1]东北特钢集团有限责任公司,辽宁抚顺113001 [2]钢铁研究总院结构材料研究所,北京100081

出　　处：《钢铁》2013年第4期59-63,共5页Iron and Steel

基　　金：国家十一五科技支撑计划资助项目(2007BAE51B04)

摘　　要：研究了真空感应+电渣重熔、电炉+LF+VD两种特殊钢冶炼工艺对H13钢组织和力学性能的影响,结果表明:真空感应+电渣重熔冶炼对提高H13钢洁净度,降低H13钢中S、P含量,降低合金元素偏析有一定作用,在一定程度上提高了H13钢心部横向冲击韧性,但由于组织中大量一次碳化物的存在,制约着H13钢横向冲击韧性的提升。Effect of such two different smelting process as ＂Vacuum Induction Furnace（VIF）＋ Electroslag Remelting（ESR）,Electric Furnace（EF）＋LF＋VD＂ of special steel on microstructure and mechanical property of H13 molds was studied.The results show that the process of VIF＋ESR has some effects on increasing of the cleanliness,decrease of S,P and segregation in H13,which can enhance the transversal impact toughness to some extent in the core of H13 steel.The increase of impact toughness is restricted by a large number of primary carbides in microstructure of H13 steel.

关 键 词：H13钢 冶炼工艺 带状偏析 一次碳化物 

分 类 号：TF703[冶金工程—钢铁冶金]