孔挤压强化对两种超高强度钢疲劳裂纹起始与扩展寿命的影响

Abstract

Abstract: The effect of coldworked holes on the initiation life and growth life offatigue cracks in two ultra-high strength steel plate specimens,300M and 30CrMnSiNi2A steels,under the flight spectrum loading for wing root is investigated.The experimental results show that the coldworked holes significantly extend the fatigue life of ultra-high strength steel.However,on-ly crack growth life is noticeably affected and no obvious effect is observed on the initiation un- der the present process of coldworking.A SEM study indicates that the fatigue sourees for coldworked and unworked specimens initiated at the corner of the holes and the surfaee of hole bore respectively;the former is only single fatigue source while the latter is multiple source.

Key words: Key words cold hardening, spectrum analysis, residual stress, crack initiationpropagaUoncrack

CLC Number:

Ding Chuanfu;Zhao Zhenye;Song Deyu. EFFECT OF COLDWORKED HOLES ON THE INIATION LIFE AND PROPAGATION LIFE OF FATIGUE CRACKS IN TWO ULTRA-HIGH STRENGTH STEELS[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 1994, 15(8): 960-967.

[1]	LIU Zhendong, ZHENG Xitao, FAN Wenjing, ZHANG Dongjian. Effect of process-induced residual stress on strength of UAV composite wing [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2022, 43(6): 526117-526117.
[2]	LI Hui, LI Guangxian, GAO Ruilin, JIN Xin, LIU Lu, LI Chaojiang, Songlin DING. Research progress of post-processing of stainless steel additive manufacturing parts [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2022, 43(4): 525847-525847.
[3]	SHANG Yong, FENG Yang, LIU Qiaomu, WANG Junwu, YANG Huijun, RU Yi, ZHANG Heng, ZHAO Wenyue, PEI Yanling, LI Shusuo, GONG Shengkai. Research and application of large scientific facility on high-temperature structural materials and coatings of aero-engine [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2022, 43(10): 527481-527481.
[4]	WANG Lianqing, HU Ya'nan, CHE Zhigang, WU Shengchuan. Fatigue performance of laser shock processed fusion welded 7075 Al alloy [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2021, 42(5): 524320-524320.
[5]	HAN Kunpeng, ZHANG Dinghua, YAO Changfeng, TAN Liang, ZHOU Zheng. Fatigue evolution and anti-fatigue mechanism of surface characteristics induced by deep rolling: A review [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2021, 42(10): 524302-524302.
[6]	ZHAO Bo, JIANG Yan, BIE Wenbo. Ultrasonic rolling technology in surface strengthening: Progress in research and applications [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2020, 41(10): 23685-023685.
[7]	DU Xu, ZHANG Teng, HE Yuting, ZHANG Tianyu, ZHANG Sheng, FENG Yu. Determining position of reaming interface in cold expansion FEM simulation [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2019, 40(4): 422674-422674.
[8]	GOU Lei, MA Yu'e, DU Yong, LIU Lei, GUO Chao, LI Gang. Residual stress profile and fatigue life of 7050 aluminum plate with groove under laser shot peening [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2019, 40(12): 423096-423096.
[9]	WANG Yanli, ZHU Youli, CAO Qiang, ZHANG Xiaohui. Progress and prospect of research on hole cold expansion technique [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2018, 39(2): 21336-021336.
[10]	WANG Xiaoming, ZHU Sheng, YANG Baijun, ZHANG Yao, XU Anyang. Aluminum-based metallic glass coatings prepared with magnetic field assisted laser cladding [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2018, 39(11): 422134-422142.
[11]	ZHAN Zhixin, TONG Yang, LI Binkai, HU Weiping, MENG Qingchun. Fatigue life prediction for titanium plate considering impact defect [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2016, 37(7): 2200-2207.
[12]	YANG Sheng, DONG Qiong, PENG Fangyu, LIN Sen, YAN Rong. Workpiece temperature analysis and its impact on machined surface quality of ultra-high strength steel in end milling [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2015, 36(5): 1722-1732.
[13]	KANG Chao, SHI Yaoyao, HE Xiaodong, ZHANG Jun, ZHANG Xiaoyang. Variable tension dynamic control for filament winding of cylinder using neural network [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2015, 36(4): 1339-1347.
[14]	JING Zhi, WU Xueren, TONG Dihua, CHEN Bo. Determination of welding residual stress intensity factors by weight function methods [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2015, 36(11): 3586-3594.
[15]	YANG Yinfei, ZHANG Zheng, LI Liang, HE Ning, ZHAO Wei. Numerical Simulation and Test of Bulk Residual Stress and Machining Distortion in Aluminum Alloy 7085 [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2014, 35(2): 574-581.

EFFECT OF COLDWORKED HOLES ON THE INIATION LIFE AND PROPAGATION LIFE OF FATIGUE CRACKS IN TWO ULTRA-HIGH STRENGTH STEELS

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments