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Carbide Effects on Creep Crack Growth of Ni-Cr Austenitic Steels祝苏明,朱世杰,王富岗,张俊善摘 要:<正> By controlling the carbon content ofFe-15Cr-25Ni alloys,three types ofmicrostructures were obtained:single phaseaustenite (γ),γ+intergranular carbides,γ+intergranular carbides + intragranular carbides.Creep crack growth behaviour of the three alloyshas been......
growth resistance decreases withaging.The specimen with underaged structuresshows the highest resistance to fatigue crack growthdue to more deflected crack paths and the resultinghigh crack closure... to be responsible for thedegradation of fatigue crack growth resistance in3.5%NaCl solution关键词:......
an important role in thermal fatigue cracking. Also, improving the shape and distribution of Si particles and strengthening the Al/SiC interface can improve the resistance of thermal fatigue crack of composites...；裂纹扩展 中图分类号:TG 111；TB 333 文献标识码:A Small thermal fatigue crack propagation behavior of sprayed Al-Si/SiCp composite for brake disc LI Wei1, CHEN Ding1, CHEN Zhen-hua1, TENG......
extension resistance are analyzed. Results show that when the homogeneity index is greater than 30, the rock can be considered as totally homogeneous, according to crack behaviors and mechanical responses... length in Figure 8 and the corresponding nominal tensile stress, crack extension resistance KR during loading was calculated by using Eq. (5) and demonstrated in Figure 10. When m>30, R curves......
; Longitudinal crack on slab surface...; longitudinal crack; finite element method ......
J. Cent. South Univ. (2021) 28: 1058-1067 DOI: https://doi.org/10.1007/s11771-021-4679-9 Comparative study on microstructure and electrochemical corrosion resistance of Al7075 alloy prepared... of 7075 aluminum alloy structural parts by laser engineered net shaping technology has become an important development direction in the future aerospace field. Electrochemical corrosion resistance......
unchanged after thermal aging. The aged material exhibited a better FCG resistance than the unaged material in the near-threshold regime because of the increased roughness-induced crack closure associated...Effect of thermal aging on the fatigue crack growth behavior of cast duplex stainless steelsXu-ming Lü1,Shi-lei Li1,Hai-long Zhang1,Yan-li Wang1,Xi-tao Wang1,21. State Key Laboratory for Advanced......
J. Cent. South Univ. (2019) 26: 3045-3056 DOI: https://doi.org/10.1007/s11771-019-4235-z Crack evolution behavior of rocks under confining pressures and its propagation model before peak stress ZUO... University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract: The understanding of crack propagation characteristics and law of rocks during the loading process is of great......
J. Cent. South Univ. (2021) 28: 58-71 DOI: https://doi.org/10.1007/s11771-021-4586-0 Corrosion fatigue crack growth mechanisms in welded joints of marine steel structures XU Qian(徐倩), SHAO Fei(邵飞...,partofSpringerNature 2021 Abstract: This paper presents a model of fatigue crack growth in a welded joint and a two-dimensional model of anodic dissolution based on Donahue model and anodic dissolution......
crack propagation resistance and fracture toughness as compared to other microstructures,which was believed to be related to the fatigue crack tip plastic zone(CTPZ). In this study, the plastic...Fatigue crack tip plastic zone of α+β titanium alloy with Widmanstatten microstructureYingjie Ma1,2,Sabry S.Youssef1,2,Xin Feng1,Hao Wang1,2,Sensen Huang1,3,Jianke Qiu1,Jiafeng Lei1,2,Rui Yang1,21......
