通过对焊接接头疲劳断口的观察研究,讨论了控制接头疲劳失效的疲劳机理.实验研究了焊接接头的母材、焊缝及热影响区的微观组织形态.结果发现:母材组织为细小均匀的板条马氏体及弥散分布的第二相粒子,而焊缝区为粗大的板条马氏体及少量的第二相颗粒.组织特征的区别证明母材综合力学性能优于焊缝.
参考文献
| [1] | Fan, J.L.;Guo, X.L.;Wu, C.W.;Zhao, Y.G. .Research on fatigue behavior evaluation and fatigue fracture mechanisms of cruciform welded joints[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2011(29/30):8417-8427. |
| [2] | 樊俊铃,郭杏林,赵延广,吴承伟.定量热像法预测焊接接头的S-N曲线和残余寿命[J].材料工程,2011(12):29-33. |
| [3] | FAN J L;GUO X L;WU C W.Influence of heat treatments on mechanical behavior of FV520B steel[J].Experimental Techniques,2013 |
| [4] | 樊俊铃,郭杏林,吴承伟,邓德伟.热处理对FV520B钢疲劳性能的影响[J].材料研究学报,2012(01):61-67. |
| [5] | 谭朝鑫.FV520(B)不锈钢叶轮焊后热处理工艺探讨[J].华中工学院学报,1983(增刊1):125-113. |
| [6] | 刘万青 .大型离心压缩机焊接叶轮疲劳分析[D].大连理工大学,2008. |
| [7] | J. Nowacki .Weldability of 17-4 PH stainless steel in centrifugal compressor impeller applications[J].Journal of Materials Processing Technology,2004(0):578-583. |
| [8] | International Institute of Welding.Fatigue Design of Welded Joints and Components[M].UK:Abington Publishing,1996 |
| [9] | 钟群鹏;赵子华.断口学[M].北京:高等教育出版社,2006 |
| [10] | N. Farabi;D.L. Chen;Y. Zhou .Microstructure and mechanical properties of laser welded dissimilar DP600/DP980 dual-phase steel joints[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2011(3):982-989. |
| [11] | CLARK A .Fatigue mechanisms in FV520B,a turbine blade steel[D].Britain:Sheffield Hallam University,1999. |
| [12] | WHITE D J .The fatigue strength of large single-pinned and double-pinned connections made from alloy steel FV520B[J].Proceedings of the Institution of Mechanical Engineers,1968,183(01):563-578. |
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