A STUDY OF SHORT FATIGUE CRACK GROWTH BEHAVIOUR IN TITANIUM ALLOY IMI 685
作者:
C. W. BROWN,
M. A. HICKS,
期刊:
Fatigue&Fracture of Engineering Materials&Structures
(WILEY Available online 1983)
卷期:
Volume 6,
issue 1
页码: 67-76
ISSN:8756-758X
年代: 1983
DOI:10.1111/j.1460-2695.1983.tb01139.x
出版商: Blackwell Publishing Ltd
数据来源: WILEY
摘要:
Abstract—The fatigue growth of short cracks in coarse grained IMI 685, having an aligned a microstructure, has been monitored using a two stage replication technique. Crack growth rates are presented in terms of the failure mechanism and compared with standard data obtained from through cracked, compact tension specimens. The maximum difference, of up to four orders of magnitude, between long and short crack growth rates is associated with separation along specific crystallographic planes resulting in a cleavage‐like fracture appearance. The rate of short crack growth is also shown to be dependent on applied stress and a dwell at maximum load during the fatigue cy
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