摘要
试验测定了 2 2 5Cr 1Mo钢贝氏体相变的相变塑性变形 ,并观测了相变塑性变形随相变进程的演化规律。根据试验结果确定了相变塑性模型。试验测定了应力对 2 2 5Cr 1Mo钢贝氏体最大转变量和相变动力学参数的影响系数。
The magnitude and evolution of transformation plasticity during the isothermal bainite transformation of 2 25Cr 1Mo steel at 500℃ is experimentally investigated by means of measuring both radial and axial deformations of cylindrical specimen. A phenomenal model has been proposed according to the experimental results. The effects of uniaxial stress on the maximum transformed volume fraction and the kinetic parameter k of bainite transformation are also determined. It is found that the transformation plasticity coefficient, the maximum transformed fraction and the kinetic parameter k of bainite transformation is proportional to the equivalent stress.
出处
《材料热处理学报》
EI
CAS
CSCD
北大核心
2001年第3期1-5,共5页
Transactions of Materials and Heat Treatment
基金
机械工业技术发展基金资助
国家攀登B预选项目
关键词
相变塑性
相变
残留应力
模型
transformation plasticity
transformation
residual stress and distortion
modeling
作者简介
高宁(1956-),男,北京机电研究所高级工程师,博士.联系电话:(010)62922277-276
