摘要
研究了00Cr13Ni6Co9Mo5高强度钢力学性能随奥氏体化温度的变化。结果表明,μ相l、aves相和χ相等过剩金属间化合物的存在导致低温奥氏体化材料的低温(-196℃)冲击性能极低。随着奥氏体化温度上升,过剩金属间化合物逐渐溶解,低温冲击性能快速上升。奥氏体化温度提高到1 130℃,不再有过剩金属间化合物,低温冲击性能提高80%以上。
The effect of austenitizing temperature on mechanical properties of 00Cr13Ni6Co9Mo5 high-strength steel was investigated.The result shows that excess intermetallics in the steel,such as μ phase,laves phase and χ phase,lead to extremely low cryogenic（-196 ℃） impact properties when austenitized at low temperature.With the increase of austenitizing temperature,the excess intermetallics gradually dissolve,and the cryogenic impact properties increases rapidly.When the austenitizing temperature rises up to 1 130 ℃,the excess intermetallics disappeare,and the cryogenic impact properties is increased by more than 80%.
出处
《铸造技术》
CAS
北大核心
2012年第4期405-407,共3页
Foundry Technology
关键词
奥氏体化温度
低温冲击性能
过剩相
austenitizing temperature
low temperature impact properties
excess phase
