20CrMnTi钢渗碳淬火硬化层深度的磁矫顽力检测
Detection of 20CrMnTi Steel Carburizing Hardening Depth by Magnetic Coercive Force
摘 要
利用无损检测磁矫顽力方法对20CrMnTi钢渗碳淬火硬化层深度进行了检测表征。对不同渗碳层深度的试样进行磁矫顽力检测分析，发现随着渗碳层深度的增加其磁矫顽力也随之增加,但是到了一定深度后磁矫顽力增加比较缓慢。结合金相法比较分析了用磁矫顽力方法检测所得结果的可靠性和误差。试验结果表明：磁矫顽力无损检测方法可以用于渗碳层深度的检测研究。
磁矫顽力方法
渗碳层深度
金相法
Nondestructive testing
Magnetic coercive force method
The depth of carburized layer
Metallography
Abstract
The 20CrMnTi carburizing hardening depth was detected and characterized by nondestructive testing of magnetic coercive force. The magnetic coercive force was detected and analyzed for samples with different depths of carburizing layer and it was found that the magnetic coercive force was to increase with the increase of the depth of carburizing layer, whereas the increase became slower while the depth of the carburizing layer reached some certain extent. The reliability and error of the results obtained by the method of magnetic coercive force are analyzed in comparison with the method of metallography. Experimental and analytical results show that the method can be used for the detection of the depth of the carburizing layer.
中图分类号 TG115.28 DOI 10.11973/wsjc201607012
所属栏目 试验研究
基金项目
收稿日期 2016/1/5
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备注罗新(1991-)，男，硕士研究生，主要从事无损检测磁学研究工作。
引用该论文: LUO Xin,WU Wei,LI Da-peng,WANG Chan,WANG Guo-cheng,WU Guan-hua. Detection of 20CrMnTi Steel Carburizing Hardening Depth by Magnetic Coercive Force[J]. Nondestructive Testing, 2016, 38(7): 47～50
罗新,吴伟,李大鹏,王婵,王国成,邬冠华. 20CrMnTi钢渗碳淬火硬化层深度的磁矫顽力检测[J]. 无损检测, 2016, 38(7): 47～50
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