42CrMo钢制动蹄支销淬火的数值模拟与试验研究  

Numerical Simulation and Experimental Study on Quenching of 42CrMo Steel Brake Shoe Pin

作　　者：吴玉逢 崔亚男[1] 葛文超[1] 侯晓楠[1] 孙就雷 WU Yu-feng;CUI Ya-nan;GE Wen-chao;HOU Xiao-nan;SUN Jiu-lei(Taian Aerospace Special Vehicle Co.,Ltd.,Taian Shandong 271000,China)

机构地区：[1]泰安航天特种车有限公司,山东泰安271000

出　　处：《热处理技术与装备》2021年第4期23-29,共7页Heat Treatment Technology and Equipment

摘　　要：基于多场耦合理论,利用有限元软件模拟了42CrMo制动蹄支销在770、840和880℃温度下淬火的过程。分析了其温度场、应力应变场、组织场以及硬度场模拟结果,并对模拟结果进行了试验验证。综合模拟和试验结果,三种淬火态试样力学性能均能符合要求,亚温淬火态(770℃)的应力应变最低,可最大程度避免淬火开裂。Based on multi-field coupling theory,finite element software was used to simulate the quenching process of 42CrMo steel brake shoe support pin at 770,840 and 880℃respectively.The simulation results of temperature,stress-strain,microstructure and hardness field were analyzed and verified by experiments.Combining the results of simulation and experiments,the hardness and mechanical properties of three quenched samples all met the requirements,and the stress and strain of the sub-temperature(770℃)quenched sample was the lowest,which could avoid cracking to the maximum extent.

关 键 词：42CrMo 数值模拟 淬火 应力应变 马氏体 

分 类 号：TG162.71[金属学及工艺—热处理]