摘要
建立了圆柱体工件激光相变硬化过程的三维传热学模型,根据此模型,采用有限差分法对圆柱体工件在激光相变硬化过程中的三维非稳态温度场进行了数值模拟,预测了42CrMo钢圆柱体工件激光相变硬化区的宽度和深度.对42CrMo钢圆柱体工件进行了激光相变硬化实验,并实测了工件激光相变硬化区的宽度和深度.研究结果表明:采用数值计算的方法,可以准确地计算出圆柱体激光相变硬化过程的温度分布及微观组织分布;预测的激光相变硬化区宽度和深度与实验测量结果符合的较好.
In this paper,a three-dimensional heat transfer model for laser transformation hardening process of cylindrical bodies was set up.Based on this model,the three-dimensional temperature fields of cylindrical bodies during laser transformation hardening process were calculated using finite difference method.The widths and depths of laser transformation hardening zones of steel42CrMo cylindrical bodies were also predicted.The laser transformation hardening experiment of steel42CrMo cylindrical bodies was carried out ,and the widths and depths of the hardening zones were measured.The calculated widths and depths of laser transformation hardening zones are in good agreement with the experimental results.
出处
《材料科学与工艺》
EI
CAS
CSCD
2002年第1期62-65,共4页
Materials Science and Technology
基金
辽宁省自然科学基金资助项目(9810300203)
三束材料改性国家重点实验室开放课题资助项目(9701).
