TY - JOUR
T1 - Comparative study of very high cycle tensile and torsional fatigue in TC17 titanium alloy
AU - Liu, Hanqing
AU - Wang, Haomin
AU - Huang, Zhiyong
AU - Wang, Qingyuan
AU - Chen, Qiang
N1 - Funding Information:
This work was financially supported by the National Natural Science Foundation of China (grant numbers 11832007 , 11802042 and 11672196 ).
Publisher Copyright:
© 2020
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/10
Y1 - 2020/10
N2 - Very high cycle tensile and torsional fatigue of TC17 titanium alloy with bimodal microstructure have been firstly and comparatively studied at the stress ratio of 0.1. Like the tensile cracks, torsional cracks were substantiated to nucleate from specimen surface or interior sites and presented in a fatigue life-dependent mode. Internal tensile and torsional fatigue cracks with faceted morphology were analyzed using focus ion beam and unraveled to initiate in modes II + III that driven by maximum shear stress. Particularly, short crack branching and deflection beneath the crack initiation rough area can be observed for torsional loading condition.
AB - Very high cycle tensile and torsional fatigue of TC17 titanium alloy with bimodal microstructure have been firstly and comparatively studied at the stress ratio of 0.1. Like the tensile cracks, torsional cracks were substantiated to nucleate from specimen surface or interior sites and presented in a fatigue life-dependent mode. Internal tensile and torsional fatigue cracks with faceted morphology were analyzed using focus ion beam and unraveled to initiate in modes II + III that driven by maximum shear stress. Particularly, short crack branching and deflection beneath the crack initiation rough area can be observed for torsional loading condition.
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U2 - 10.1016/j.ijfatigue.2020.105720
DO - 10.1016/j.ijfatigue.2020.105720
M3 - Article
AN - SCOPUS:85086383754
SN - 0142-1123
VL - 139
JO - International Journal of Fatigue
JF - International Journal of Fatigue
M1 - 105720
ER -