G20CrNi2MoA轴承套圈渗碳层深度的无损检测与模拟仿真  

Nondestructive testing and simulation of carburized layer depth of G20CrNi2MoA bearing ring

作　　者：范世超 郭玉飞[2] 刘晓滕[1] 王晗 郝海[1] 

机构地区：[1]大连理工大学材料科学与工程学院,辽宁大连116024 [2]瓦房店轴承集团有限公司,辽宁瓦房店116300

出　　处：《材料热处理学报》2017年第11期146-153,共8页Transactions of Materials and Heat Treatment

基　　金：辽宁省科技创新重大专项(2015106009)

摘　　要：利用涡流无损检测技术对G20Cr Ni2Mo A轴承套圈渗碳层深度进行检测,确定了检测信号(阻抗值)与渗碳层深度之间的函数关系;利用DEFORM软件对轴承套圈进行热处理工艺的数值模拟,并将渗碳层深度的模拟结果与实验结果对比分析。结果表明:仿真值与实际测量的渗碳层深度误差小于0.9%,验证了模型的有效性和可靠性;测量套圈模型上与无损检测实验中相同位置点的渗碳层深度,并与涡流无损检测测量出的渗碳层深度比较,发现两者误差不超过1.8%。The depth of carburized layer of G20CrNi2MoA bearing ring was detected by eddy current nondestructive testing technology,and the function relationship between test signal（ impedance value） and depth of carburized layer was determined. The numerical simulation of heat treatment process of the bearing ring was carried out by using DEFORM software,and the simulation results of carburizing layer depth were compared with the experimental results. The results show that the error between the simulation value and the measured value of carburized layer depth is less than 0. 9%,which proves the validity and reliability of the model. The depth of carburized layer at the same position in the ring model and in the nondestructive test is measured and compared with the depth of carburized layer measured by eddy current nondestructive testing,it is found that the error is not more than 1. 8%.

关 键 词：轴承套圈 渗碳层深度 无损检测 数值模拟 

分 类 号：TG142.4[一般工业技术—材料科学与工程]