采用激光表面快速熔凝技术处理了γ-TiAl基合金的拟连接表面,原位观察了激光处理组织在不同温度下保温过程中组织转变的特点,研究了处理温度对组织转变速度的影响以及组织细化的规律结果表明,用激光表面快速熔凝处理所得到的γ-TiAl基合金拟连接表面的枝晶组织,在一定的温度下可转变为细小的等轴晶粒组织,为后续的超塑连接提供了良好的保障.
参考文献
| [1] | Y-W.Kim, D.M.Dimiduk, Progress in the Understanding of Gamma Titanium Aluminides. JOM., 8, 40(1991) |
| [2] | Y-W.Kim, Ordered Intermetallic Alloys, part Ⅲ: Gamma Titanium Aluminides. JOM., 7, 30(1994) |
| [3] | S.Deevi, Intermetallics for the Third Millennium. Advanced Materials & Processes, 9, 44(1999) |
| [4] | W.A.Baeslack Ⅲ, T.J..Mascorella, T.J.Kelly, Weldability of Titanium Aluminide. Weld J., 68(12),483(1989) |
| [5] | S.A.David, J.A.Horton, G.M.Goodwin, Weldability and Microstructure of a Titanium Aluminide. Weld J.,69(4), 133(1990) |
| [6] | M.J.Cieslak, T.J.Headley, Baeslack W.A. Ⅲ, Effect of Thermal Processing on the Microstructure of Ti-26Al-11Nb: Applications to Fusion Welding. Metal. Trans., 21A, 1273(1990) |
| [7] | Lutfullin R. Ya., Superplasticity and Solid State Bonding of Materials [A]. In: Chokshi A.E.ed. ICSAM'97[C]. (Switzerland, Trans. Tech. Publications Ltd., 1997) p.681 |
| [8] | G.Cam, The fracture behavior of diffusion-bonded duplex gamma TiAl. JOM., 11, 66(1996) |
| [9] | HE Yuehui(贺跃辉),HUANG Boyun(黄伯云),TiAl基合金固态连接.Acta Metall.Sin.(金属学报),34(11),1162(1998) |
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%