摘要
分析了碳含量的变化对铸态Mn6系钢显微组织的影响,探讨了Mn6系钢在铸态下碳含量与奥氏体稳定性的关系。结果表明,当碳含量在0.93%以下时,凝固组织中发生部分珠光体转变和马氏体转变;当碳含量在1.19%时,凝固组织为全奥氏体。而当碳含量达到1.28%时,凝固组织中开始析出第二相碳化物。含碳量1.19%为奥氏体稳定性的一个重要分界点。
Effect of carbon content variation on microstructure of as-cast Mn6 series steel was analyzed.The relationship between carbon content and austenite stability of as-cast Mn6 series steel was studied.The results show that when the carbon content is below 0.93%,pearlite and martensite can been partly observed in as cast solidification microstructure,when the carbon content is 1.19%,the solidification structure was whole austenite.Whereas when the carbon content reaches 1.28%,the secondary carbides are precipitated during the solidification.The 1.19% carbon content was an important demarcation point of austenite stability.
出处
《金属热处理》
CAS
CSCD
北大核心
2012年第3期17-19,共3页
Heat Treatment of Metals
基金
陕西省教育厅专项科研计划(2010JK649)
关键词
碳含量
铸态Mn6系钢
奥氏体稳定性
马氏体
碳化物
carbon content
as-cast Mn6 series steel
austenitic stability
martensite
carbide
