摘要
通过对中、高锰钢铸锭低倍组织、导热系数及显微组织进行研究,为中、高锰钢连铸工艺的研究提供了理论基础。研究表明,中、高锰钢的导热系数较低,在凝固过程中易形成粗大柱状晶。中锰钢w[Mn]=3.35%时,显微组织为贝氏体;w[Mn]=5.82%时,显微组织为马氏体。随w[Mn]增大,高锰钢显微组织中奥氏体相的比例增大,最终形成奥氏体单相组织。
The macrostructure,thermal conductivity and microstructure of middle and high manganese steel ingot have been investigated to provide a theoretical basis for the research on the continuous casting process of medium and high manganese steel. The results show that the thermal conductivities of medium and high manganese steel are low and coarse columnar grains are easily formed during solidification. When w[Mn]= 3.35% in medium steel,the microstructure is bainite. When w[Mn]= 5.82% in medium steel,the microstructure is martensite. With the increase of w[Mn],the ratio of austenite phase in high manganese steel is increased. Finally,the single austenite phase is formed.
出处
《连铸》
2016年第1期1-5,共5页
Continuous Casting
关键词
中高锰钢
连铸
凝固组织
物性参数
medium and high manganese steel
continuous casting
solidification structure
physical parameter
