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Study on bending fretting fatigue damage in 17CrNiMo6 steel
被引:2
|作者:
Peng, J. F.
[1
,2
]
Jin, X.
[1
]
Xu, Z. B.
[1
]
Cai, Z. B.
[1
]
Zhang, X. Y.
[1
]
Zhu, M. H.
[1
]
机构:
[1] Southwest Jiaotong Univ, Tribol Res Inst, Tract Power State Key Lab, Chengdu 610031, Sichuan, Peoples R China
[2] Donghua Univ, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 200051, Peoples R China
来源:
基金:
中国国家自然科学基金;
关键词:
Bending fretting fatigue;
17CrNiMo6;
steel;
microcrack;
damage mechanism;
ALLOY;
D O I:
10.1142/S0217979217440209
中图分类号:
O59 [应用物理学];
学科分类号:
摘要:
Bending fretting fatigue behavior of 17CrNiMo6 alloy structural steel at room temperature was investigated under different bending and contact loads; and the S-N curve also was built up. The results showed that the S-N curve had a "C" shape. The bending fretting fatigue life was mainly dependent on the bending fatigue stress and fretting displacement. The limit of the specimens and the fretting fatigue life were dramatically decreased by fretting actions. The bending fretting fatigue damage changed under varied bending fatigue stress levels. When the wear first occurred, there is a lower bending fatigue stress; and with a higher bending fatigue load, microcracks were generated. However, some serious wear and surface delamination were observed under the highest fatigue load.
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页数:5
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