摘要
研究了等温淬火温度对ADI中残余奥氏体及其力学性能的影响。结果表明,在试验温度范围内(270～380℃),试样中残余奥氏体的含碳量及其含量随着等温淬火温度的升高先增大后减小,均在360℃等温淬火时出现最大值;抗拉强度随着等温淬火温度的升高而逐渐降低;伸长率和冲击韧度随着等温淬火温度的升高先增大后减小,在360℃等温淬火时出现最大值;硬度则随着等温淬火温度的升高先减小后增大,当360℃等温淬火时硬度最低。
The influences of isothermal quenching temperature on the retained austenite and mechanical properties of ADI were studied. The results show that,with the quenching temperature （270- 380℃） increasing,the carbon content and percentage content of retained austenite increase first and then decrease,which are up to a maximum value at 360℃; the tensile strength of ADI decreases;the elongation and impact ductility of ADI increase first and then decrease,which are up to a maximum value at 360℃ ; but the hardness of ADI decreases first and then increases,which is up to a minimum value at 360℃.
出处
《热加工工艺》
CSCD
北大核心
2007年第8期58-61,共4页
Hot Working Technology
关键词
ADI
等温淬火温度
力学性能
残余奥氏体
ADI
isothermal quenching temperature
mechanical property
retained austenite
