摘要
研究了在等温相变过程中稀土对新型高强韧钻具钢相变动力学的影响,建立了试验钢等温条件下贝氏体相变的TTT图。结果表明:稀土增加了试验钢中的相变激活能,使TTT曲线右移和下移,并使试验钢的鼻温由385℃降至350℃。
Effect of RE on phase transformation kinetics of new high strength-toughness drilling tool steel during isothermal transformation was investigated, and the TTT diagrams were established. The results show that RE improves the value of phase transformation activation energy. The TTT diagrams are shifted to right and down, and nose temperature of the tested steel is decreased from 385 ℃ to 350 ℃.
出处
《金属热处理》
CAS
CSCD
北大核心
2015年第4期53-56,共4页
Heat Treatment of Metals
基金
天津市教委科研计划项目(20130319)
贵州省创新基金项目(024015)
贵阳市科技产业化项目(20041)
天津冶金职业学院科研计划项目(201115)
关键词
钻具钢
高强韧
稀土
等温相变动力学
tool steel
high strength-toughness
rare earth element
isothermal transformation kinetics
