对镍钛合金进行了低周大应变疲劳试验,研究了板厚、丝径大小、表面处理工艺、热处理制度、冷热拉伸、形变角幅度、熔炼工艺等对低周疲劳寿命的影响.结果表明:TiNi合金低周大变形疲劳寿命在102～104之间;板厚、丝径、形变角幅度愈小,寿命愈长;热处理制度对疲劳寿命有重大影响,采用热拉伸工艺和400～500℃回火,合金有较好综合性能;合金中杂质含量和成分组织均匀性对合金性能有着重要作用.
参考文献
| [1] | Fischer H;Vogel B;Grunhagen A.Application of shape-memory alloys in medical instruments[A].Kuming,2001:9-16. |
| [2] | 郭一萍;董元源;高三存 等.镍钛记忆合金断裂研究[J].金属材料研究,2003,29(02):50-56. |
| [3] | MckelveyAL;Ritchie R D.Proceeding of the MRS fall meeting[C].Boston,MA,1998:54-59. |
| [4] | MckelveyAL;Ritchie R D .Fatigue-crack grow thin the supere lastic endova sculastent material nitinol[J].Metallurgical and Materials Transactions,2001,32:730-733. |
| [5] | Product spcification[M/OL].http://www.amtbe.com |
| [6] | TavenelliandJF;Coffin L F .Experimental support generaliged eguation predicting low cycle fatigue[J].Jr ASME,J Basic,1962,84(04):625-629. |
| [7] | MansonSS .Fatigue behavior of matiral[J].Transactions of the ASME Journal of Basic Engineering,1962,84(04):533-540. |
| [8] | 范天佑.断裂力学引论[M].北京:北京理工大学出版社,1990 |
| [9] | TurnonE .Impact testing of metals[R].STP466,SAE |
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