摘要
设计 1种新型无碳化物贝氏体Ni5 .5铸钢。从成分设计、热处理工艺的选择、性能及低温冲击韧性等方面进行研究。结果表明 ,Ni5 .5铸钢具有无碳化物贝氏体结构 ,贝氏体以巨型台阶方式形成 ,良好的机械性能和低温冲击韧性 。
A kind of carbide free bainite Ni 5.5 cast steel is designed aimed at use at cryogenic cast steel. Studying from aspects of composition design, technical parameter of heat treatment, and impact toughness, Ni5.5 cast steel has carbide free bainete structure that formed by mean of huge type of step. The good mechanical property and cryogenic impact toughness fit for environment that temperature is upto -80 ℃.
出处
《铸造技术》
CAS
北大核心
2003年第4期316-318,共3页
Foundry Technology
关键词
铸钢
贝氏体
热处理
冲击韧度
Cast steel
Bainite
Heat treatment
Impact toughness
