利用疲劳试验机研究了28CrMo钢在三角波、方波和正弦波3种加载方式下三点弯曲疲劳实验过程中疲劳裂纹扩展速度与自发射磁信号的相关性,用扫描电镜对疲劳断口特征进行了研究.结果表明:加载方式不同,疲劳裂纹扩展速度不同,其中三角波加载方式下裂纹扩展速度最快,自发射磁信号最大,正弦波加载方式下裂纹扩展速度最慢,其自发射磁信号最小,方波加载方式则介于两者之间.基于磁荷概念和Ansys模拟结果分析了不同加载方式下疲劳裂纹扩展过程中自发射磁信号的变化规律.断口扫描分析结果表明3种加载方式下的疲劳断口均为类解理断裂.
参考文献
| [1] | 徐滨士,董丽虹,董世运,薛楠.加载条件下铁磁材料疲劳裂纹扩展自发射磁信号行为研究[J].金属学报,2011(03):257-262. |
| [2] | Z.D. Wang;K. Yao;B. Deng .Theoretical studies of metal magnetic memory technique on magnetic flux leakage signals[J].NDT & E International: Independent Nondestructive Testing and Evaluation,2010(4):354-359. |
| [3] | A. Doubov .Screengin of weld quality using the magnetic metal memory effect[J].Welding in the World: Journal of the International Institute of Welding: Journal of the International Institute of Welding,1998(3):196-199. |
| [4] | CRAIK D J;WOOD M J .Magnetization changes induced by stress in a constant applied field[J].Journal of Physics D:Applied Physics,1970,3(07):1009-1016. |
| [5] | A.A. DUBOV;S.M. KOLOKOL'NIKOV .Special features of the inspection of welded joints by the method of magnetic memory of metal[J].Welding International,2007(11):821-825. |
| [6] | 许天旱,冯耀荣,宋生印,金志浩,王党会.应力比对套管钻井用J55钢疲劳裂纹扩展行为的影响[J].机械工程材料,2009(11):19-23. |
| [7] | 周明哲,易丹青,蔡金伶,王宏伟,芦禹.热暴露对航空用2E12铝合金组织演变及疲劳性能的影响[J].材料热处理学报,2011(01):49-55. |
| [8] | 李博,胡伟叶,沈以赴,周明.飞机框架结构件振动疲劳失效分析[J].金属热处理,2011(09):83-87. |
| [9] | LIU Wen-juan,陈迎锋,LU Min-xu.超载对X52管线钢疲劳裂纹扩展速率的影响[J].材料热处理学报,2008(04):123-126. |
| [10] | 邢海燕 .基于磁记忆技术的疲劳损伤评估及寿命预测[D].哈尔滨工业大学,2007. |
| [11] | Lihong Dong;Binshi Xu;Shiyun Dong;Qunzhi Chen .Characterisation of stress concentration of ferromagnetic materials by metal magnetic memory testing[J].Nondestructive Testing and Evaluation,2010(2):145-151. |
| [12] | 佟倩,吴晓春,周青春,闵娜.热作模具钢SDH3热疲劳机理[J].材料热处理学报,2010(05):81-86. |
| [13] | 王从曾.材料性能学[M].北京:北京工业大学出版社,2007:27-28. |
| [14] | Li L.;Jiles DC. .Modeling of the magnetomechanical effect: Application of the Rayleigh law to the stress domain[J].Journal of Applied Physics,2003(10 Pt.3):8480-8482. |
| [15] | Tanasienko A G;Suntosov S I;Dubov A A .Monitoring chemical plant by a metal magnetic memory method[J].Chemical and Petroleum Enginerring,2002,38(9-10):624-629. |
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