对奥氏体不锈钢1Cr18Ni9Ti进行激光冲击强化,观察了激光冲击强化层显微组织与结构的变化并测定了激光冲击强化层内的显微硬度和残余应力.结果表明:1Cr18Ni9Ti激光冲击强化层中有高密度的位错和大量的孪晶,显微硬度显著提高并产生较高的残余压应力,1Cr18Ni9Ti激光冲击强化区还发生了形变诱发马氏体相变.
参考文献
| [1] | J.P. CHU;J.M. RIGSBEE;G. BANAS .Effects of Laser-Shock Processing on the Microstructure and Surface Mechanical Properties of Hadfield Manganese Steel[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,1995(6):1507-1517. |
| [2] | Eisner K;Lang A;Schutte K;Bergmam H W .Shock hardening as a novel technique for materials processing[J].SPIE,1996,2789:274-280. |
| [3] | 闫毓禾;钟敏霖.高功率激光加工及其应用[M].天津:天津科学技术出版社,1992:236-238. |
| [4] | Fairand B P;Wilcox B A;Gallagher W J;Williams D N .Laser shock-induced microstructural and mechanical property change in 7075 aluminum[J].Journal of Applied Physics,1972,43(09):3893-3895. |
| [5] | 刘富荣;邹宏承.小功率激光器激光冲击强化铝合金的研究[J].航空工艺技术,1996(01):15-17. |
| [6] | Peyre P;Fabbro R;Merrien P;Lienrade H P .Laser shock processing of aluminum alloys:Application to high cycle fatigue behavior[J].Materials Science and Engineering,1996,A210:102-113. |
| [7] | 邓琦林;余承业.激光冲击强化一种铝合金表面局部强化新工艺[J].航空制造工程,1996(03):18-20. |
| [8] | Banas G;Elsayed-Ali H E;Lawrence F V;Rigsbee J M .Laser shock-induced mechanical and microstructural modification of welded maraging steel[J].Journal of Applied Physics,1990,67(05):2380-2384. |
| [9] | John A V.Laser shock extends fatigue life[J].American Machinist,1992:62-64. |
| [10] | 孙锡军 .不锈钢及高温合金激光冲击硬化研究[D].北京:北京航空航天大学,1998. |
| [11] | John F R .Laser-produced shocks and their relation to material damage[J].IEEE Journal of Oceanic Engineering,1978,QE-14(02):79-84. |
| [12] | 王宝生;许瑞玉.激光冲击对材料机械性能的影响[J].制造工程,1987(06):10-15. |
| [13] | 张永康.激光冲击强化效果的直观判别与控制方法研究[J].中国激光,1997(05):467. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%