高锰钢复合变质的作用及动力学条件  

Compound Modification Function and Dynamics Condition of High-Mn Steel

作　　者：王仲珏[1] 

机构地区：[1]安徽工程科技学院,芜湖241000

出　　处：《中国铸造装备与技术》2005年第2期39-41,共3页China Foundry Machinery & Technology

基　　金：安徽省教育厅自然科学研究项目资助(2004kj048)

摘　　要：采用RE-Ca-Ti-Al对高锰钢进行复合变质。在炉内、炉外实行“二步法”处理并按变质合金异质形核的生核能大小设计分级处理的顺序,起到了控制碳化物的析出量和改善析出形态,净化钢液,净化晶界,细化晶粒等良好的变质效果。这些变化主要是复合变质所产生的动力学效应对其影响的结果。这种变质作用受制于复合变质在冶金处理过程中所应具备的相关的动力学条件。RE-Ca-Ti-Al alloy elements have been used in high-Mn steel for compound modification.'Twain-step'technique and step process order designed on energy of alloy non-uniformity forming core in inside and exterior furnace have been practised,playing favorable modification effect of controlling separate out and improving shape; purifying steel liquid and grain boundary;refining grain.The changes have been mainly brought by dynamics effect of compound modification.The modification function has been restricted by corresponding dynamics condition that compound modification should possess in metallurgy process.

关 键 词：高锰钢 复合变质 动力学条件 

分 类 号：TG156.6[金属学及工艺—热处理]