疲劳载荷作用下应力集中部位金属的磁记忆现象
Magnetic Memory Testing of Metal in Stress Concentration Position under Fatigue Loading
摘 要
研究了含有缺口的18CrNi4A渗碳钢试样在疲劳载荷作用下的磁记忆现象.结果表明:在应力集中部位磁记忆信号Hp(y)变化明显,且随循环加载次数的增加呈现规律性变化;在试验过程中,当循环加载到一定次数后,Hp(y)曲线过零点,在随后循环中零点的位置变化很小,直到试样产生裂纹、断裂;磁记忆检测对18CrNi4A渗碳钢构件的疲劳损伤具有较准确的判断能力.
疲劳
应力集中
18CrNi4A钢
magnetic memory
fatigue
stress concentration
18CrNi4A steel
Abstract
The variation of magnetic memory signals of 18CrNi4A notched specimen was studied under fatigue loading.The research shows that the magnetic memory signals varied regularly with the increase of cycle number in the stress concentration position of the specimen.And in the test process,the Hp(y) curve had a zero value when the specimen was loaded in some specific cycle number.And the zero value hardly changed in the succedent test process until the specimen was fractured.Magnetic memory testing is comparatively accurate to judge the damage state of 18CrNi4A case-hardening steel.
中图分类号 TG113.2
所属栏目 材料性能及其应用
基金项目 国家自然科学基金资助项目(50505052);总装“十五”维修预研项目(41327030202)
收稿日期 2007/10/19
修改稿日期 2008/2/20
网络出版日期
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备注崔常京(1979-),男,山东潍坊人,硕士.
引用该论文: CUI Chang-jing,DONG Shi-yun,WANG Yu-ya,CHEN Qun-zhi,SHI Chang-liang. Magnetic Memory Testing of Metal in Stress Concentration Position under Fatigue Loading[J]. Materials for mechancial engineering, 2008, 32(12): 51～54
崔常京,董世运,王逾涯,陈群志,石常亮. 疲劳载荷作用下应力集中部位金属的磁记忆现象[J]. 机械工程材料, 2008, 32(12): 51～54
被引情况:
【1】李建伟,徐敏强,冷建成,徐明秀, "Q235钢缺陷试件不同状态下的磁记忆特征",无损检测 32, 238-241(2010)
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参考文献
【1】胡智,任吉林.铁磁材料构件的应力分析和磁记忆检测[J].无损检测,2005,27(7):355-358.
【2】任吉林,林俊明.金属磁记忆检测技术[M].北京:中国电力出版社,2000:276-278.
【3】Dubov A A.Express method of quality control of a spot resistance welding with usage of metal magnetic memory[J].Welding in the World,2002,46(6):317-320.
【4】张卫民,董韶平,张之敬.金属磁记忆检测现状与发展[J].中国机械工程,2003,5(10):892-895.
【5】杜波夫.金属磁记忆方法和已知磁无损检测方法原则性区别[C]//全国电磁(涡流)检测技术研讨会论文集.鞍山:[出版者不详],2004:58-59.
【6】束德林.金属力学性能[M].北京:机械工业出版社,1997:136-137.
【7】任吉林,邬冠华,宋凯,等.金属磁记忆检测机理的探讨[J].无损检测,2001,24(1):29-31.
【2】任吉林,林俊明.金属磁记忆检测技术[M].北京:中国电力出版社,2000:276-278.
【3】Dubov A A.Express method of quality control of a spot resistance welding with usage of metal magnetic memory[J].Welding in the World,2002,46(6):317-320.
【4】张卫民,董韶平,张之敬.金属磁记忆检测现状与发展[J].中国机械工程,2003,5(10):892-895.
【5】杜波夫.金属磁记忆方法和已知磁无损检测方法原则性区别[C]//全国电磁(涡流)检测技术研讨会论文集.鞍山:[出版者不详],2004:58-59.
【6】束德林.金属力学性能[M].北京:机械工业出版社,1997:136-137.
【7】任吉林,邬冠华,宋凯,等.金属磁记忆检测机理的探讨[J].无损检测,2001,24(1):29-31.
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