TY - JOUR
T1 - High-cycle fatigue failure behavior of nickel-based single crystal alloys with different deviation angles in a high-temperature environment
AU - Mao, Zhuangzhuang
AU - Zhu, Yingbin
AU - Zhao, Yao
AU - Xie, Huimin
AU - Yang, Yanhong
AU - Zhou, Yizhou
AU - Huang, Xianfu
AU - Liu, Zhanwei
N1 - Publisher Copyright:
© 2023 Elsevier Inc.
PY - 2023/9
Y1 - 2023/9
N2 - The high-cycle fatigue failure behavior of nickel-based single crystal alloys with different deviation angles (deviated [001] orientations of 0°, 10°, and 20°) was assessed in this work. At 980 °C/600 MPa, the fatigue life decreases with increasing deviation angle from the [001] orientation.The dislocation motion is mainly Orowan deformation mechanism, and the fatigue mode is crystallographic fracture. At 980 °C/640 MPa, the fatigue life is the longest when the deviation angle is 0°, and it is the shortest when the deviation angle is 10°. The fatigue failure mode is the crystallographic fracture when the deviation angle is 0° and 20°, and it is the noncrystallographic fracture when the deviation angle is 10°. The dislocation motion is mainly a single dislocation or paired dislocation shearing γ’ phase deformation mechanism.
AB - The high-cycle fatigue failure behavior of nickel-based single crystal alloys with different deviation angles (deviated [001] orientations of 0°, 10°, and 20°) was assessed in this work. At 980 °C/600 MPa, the fatigue life decreases with increasing deviation angle from the [001] orientation.The dislocation motion is mainly Orowan deformation mechanism, and the fatigue mode is crystallographic fracture. At 980 °C/640 MPa, the fatigue life is the longest when the deviation angle is 0°, and it is the shortest when the deviation angle is 10°. The fatigue failure mode is the crystallographic fracture when the deviation angle is 0° and 20°, and it is the noncrystallographic fracture when the deviation angle is 10°. The dislocation motion is mainly a single dislocation or paired dislocation shearing γ’ phase deformation mechanism.
KW - Different deviation angles
KW - High cycle fatigue failure mechanism
KW - Nickel-based single crystal
UR - http://www.scopus.com/inward/record.url?scp=85164287362&partnerID=8YFLogxK
U2 - 10.1016/j.matchar.2023.113118
DO - 10.1016/j.matchar.2023.113118
M3 - Article
AN - SCOPUS:85164287362
SN - 1044-5803
VL - 203
JO - Materials Characterization
JF - Materials Characterization
M1 - 113118
ER -