采用高能喷丸(HESP)对TA17钛合金和0Cr18Ni9Ti不锈钢棒材的连接面进行了表面自纳米化(SSNC)处理,在连接面获得了一定厚度的纳米晶组织层.将钛合金和不锈钢的纳米化处理连接面对接,在热模拟试验机上进行恒温恒压和脉冲加压扩散连接.测试接头拉伸强度,并对断口和接头显微组织进行分析.结果表明,采用脉冲加压扩散连接,接头界面处生成的金属间化合物层较薄,接头抗拉强度高达384.0 MPa;断口呈脆性断裂特征.
Surface self-nanocrystallization (SSNC) by means of high energy shot peening(HESP) was applied to produce nanostructures on the bonding surface of TA17 titanium alloy and 0Cr18Ni9Ti stainless steel bars and nanocrystalline structure layers with certain thickness were formed on the bonding surface of samples. TA17 and 0Cr18Ni9Ti bars were bonded by constant temperature and pressure diffusion bonding (CTPDB) and impact pressure diffusion bonding (IPDB) respectively on Gleeble-1500D tester. Tensile strength was tested, and the joint fractures and microstructures were analyzed. The results show that thinner intermetallic compound layer is formed on the interface of joints by IPDB which has a tensile strength of 384.0 MPa. Fracture of IPDB joints present brittle characteristic.
参考文献
| [1] | 朱平.[J].制导与引信,1999(04):49. |
| [2] | 秦斌 .钛合金与不锈钢扩散焊接工艺及理论研究[D].Chongqing:Chongqing University,2006. |
| [3] | 袁新建,盛光敏,秦斌,周波,黄家伟,黄文展,李聪,邱绍宇.脉冲加压扩散连接工艺参数对钛合金与不锈钢接头强度的影响[J].航空材料学报,2006(04):51-55. |
| [4] | Gleiter H .[J].Progress in Materials Science,1989,33(04):223. |
| [5] | Lu K .[J].Materials Science and Engineering R:Reports,1996,16(04):161. |
| [6] | 卢柯;吕坚 .[P].Chinese Patent,01122980.2,2001. |
| [7] | Lu K;Lu J .[J].Materials Science and Engineering A,2004,375-377(07):38. |
| [8] | Nairong Tao;Hongwang Zhang;Jian Lu;Ke Lu .Development of Nanostructures in Metallic Materials with Low Stacking Fault Energies During Surface Mechanical Attrition Treatment (SMAT)[J].Materials transactions,2003(10):1919-1925. |
| [9] | Schumacher S;Birringer R;Strauss R et al.[J].Acta Metallurgica,1989,37(09):2485. |
| [10] | Lu L;Sui M L;Lu K .[J].Science,2000,287(02):1463. |
| [11] | Tong W P;Tao N R;Wang Z B et al.[J].Science,2003,299(01):686. |
| [12] | Wang Z B;Tao N R;Tong W P et al.[J].Acta Materialia,2003,51(08):4319. |
| [13] | Wang Z B;Lu J;Lu K .[J].ACTA MATERIALIA,2005,53(04):2081. |
| [14] | Tong W P;Tao N R;Wang Z B et al.[J].Journal of the Graduate School of the Chinese Academy of Sciences,2005,22(02):230. |
| [15] | Zhang H W;Wang L;Hei Z K et al.[J].Z Metall,2003,94(05):1143. |
| [16] | Bei D H;Gu J F;Pan J H et al.[J].Journal of Materials Science and Technology,2002,18(06):566. |
| [17] | K.Y. Zhu;A. Vassel;F. Brisset .Nanostructure formation mechanism of alpha-titanium using SMAT[J].Acta materialia,2004(14):4101-4110. |
| [18] | Wang Z B;Tao N R;Tong W P et al.[J].Acta Materialia,2003,51(04):4319. |
| [19] | Kazakov N F.Diffusion Bonding of Materials[M].Moscow:Mir Publishers,Pergamon Press,1985:26. |
| [20] | 周波,盛光敏,黄家伟,秦斌,邱绍宇,李聪.钛合金与不锈钢的纳米扩散焊接工艺探索[J].焊接技术,2004(01):15-17. |
| [21] | He Peng;Zhang Jiuhai;Zhou Ronglin et al.[J].Materials Characterization,1999,43(05):287. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%