학술논문
Effect of Twice Hole Expansion on Fatigue Property of Ti1023 Alloy
Document Type
article
Author
Source
Journal of Aeronautical Materials, Vol 36, Iss 6, Pp 68-73 (2016)
Subject
Language
Chinese
ISSN
1005-5053
Abstract
The property of the surface layer of twice hole expansion Ti1023 alloy was analyzed by TEM, X-ray and roughness tester, and the strengthen mechanism of the bushing hole expansion was discussed. The results indicate that the roughness(Ra1.722→0.349 μm), hardness(Hv32→38) and residual stress distribution of the hole are improved by twice hole expansion techniques,and the fretting wear fatigue(fatigue limits 385→619MPa) of Ti1023 alloy is improved.