DocumentCode
481077
Title
Effects of electron beam local heat treatment on fatigue properties for Ti-6Al-4V alloy joints
Author
Fu, Pengfei ; Liu, Fangjun ; Mao, Zhiyong ; Li, Jinwei
Author_Institution
Beijing Aeronautical Manufacturing Technology Research Institute, 100024, CHINA, Baliqiaobei , Chaoyang District, Beijing, P.O.Box 863
fYear
2006
fDate
6-7 Nov. 2006
Firstpage
72
Lastpage
75
Abstract
Ti-6Al-4V alloy plates after electron beam welding(EBW) were heat treated by electron beam local heat treatment(EBLHT), the joints specimens were tested by low cycle fatigue tests, and the influence of EBLHT on fatigue properties was studied. Experimental results have shown that the joints of Ti-6Al-4V alloy after EBW and EBLHT present soften during fatigue tests, and elasticity strains are higher than plastic strains. The fatigue life of the joints after EBLHT can increase 30%, and the equations of ε—N curve are gained. Therefore electron beam local heat treatment can improve the properties of EBW joint, especial for complex aero-components.
Keywords
Electron beam; Ti-6Al-4V alloy; fatigue life; heat treatment;
fLanguage
English
Publisher
iet
Conference_Titel
Technology and Innovation Conference, 2006. ITIC 2006. International
Conference_Location
Hangzhou
ISSN
0537-9989
Print_ISBN
0-86341-696-9
Type
conf
Filename
4751969
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