TC4-DT钛合金电子束焊接接头的损伤容限性能

1.北京航空材料研究院,北京,100095

2.北京航空材料研究院,北京,100095

3.北京航空材料研究院,北京,100095

4.北京航空材料研究院,北京,100095

5.北京航空材料研究院,北京,100095

6.北京航空材料研究院,北京,100095

The Damage Tolerance Properties of the EBW Joint for TC4-DT Titanium Alloy

针对TC4-DT钛合金厚截面锻件开展了电子束焊接工艺实验和接头力学性能测试与分析.结果表明,TC4-DT钛合金不仅具有良好的焊接工艺特性,而且电子束焊接接头具有高的损伤容限性能.接头的断裂韧性优于母材并且比母材有更高的疲劳裂纹扩展抗力.

[1]	曹春晓.选材判据的变化与高损伤容限钛合金的发展[J].金属学报,2002(z1):4-11.
[2]	Bowen P.;James AW.;Chave RA. .CYCLIC CRACK GROWTH IN TITANIUM ALUMINIDES[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,1995(0):443-456.
[3]	FILP R;KUBIAK K;ZIAJIA W et al.The effect of mircostructrue on mechanical properties of two-phase titanium alloys[J].Journal of Materials Processing Technology,2003,133:84-89.
[4]	DING R;GUO Z X .Microstructural evolution of Ti-6Al-4V alloy during β-phase processing[J].Materials Science and Engineering,2004,A365:172-179.
[5]	LUTJERING G .Influence of processing on microstructure and mechanical properties of α+ β titanium alloys[J].Materials Science and Engineering,1998,A243:32-45.
[6]	鲍利索娃 E A;陈石卿.钛合金金相学[M].北京:国防工业出版社,1986:247.
[7]	LINDERMANN J;WAGNER L .Mean stress sensitivity in fatigue of α,(α+β)and β titanium alloys[J].Materials Science and Engineering,1997,A234-236:1118-1121.
[8]	RITCHIE R O;DAVIDSON D L;BOYCE B L et al.High-cycle fatigue of Ti-6Al-4V[J].Fatigue & Fracture of Engineering Material & Structure,1999,22:8-19.

上一张下一张

计量

作者相关

文章评分