Wei Wang, Zhongguang Wang, Aiping Xian, Jianku Shang
Two kinds of CBGA (ceramic ball grid array) assemblies were made by reflow soldering process using two different Pb-free solders. Microstructural evolution and cracks induced by thermal cycling in...
Transient Current Behaviour in Corrosion Fatigue of a Ferritic Stainless Steel. (1998)
Wang, Zhongguang, Yan, Xiaoming, Ma, Minya, Zhu, Ziyong
Push-pull fatigue tests were conducted in both 1M H2SO4 and 1M NaCl solutions on high-purity ferritic stainless steel Fe-26Cr-1Mo; Points of maximum tensile and compressive strains yielded sharp...
Cyclic Creep Fracture of 34CrMoA Rotor Steel at High Temperature. (1998)
Yang, Zhian, Bai, Yunling, Wang, Zhongguang, Zhou, Naibiao
Cyclic creep behavior of 34 CrMoA rotor steel was studied under the condition of the different unloading amounts and maximum cyclic stresses at 550 c; cyclic creep retardation is noticed, and Mo...
Yang, Zhian, Wang, Zhirui, Hu, Xiaobo, Wang, Zhongguang
The intermediate-temperature cyclic creep of Al-0.87% Mg alloy under different peak stresses was studied. Periodic strain bursts occurred in the secondary creep stage but only in a certain region of...
Huang, Zhaohong, Tian, Jifeng, Wang, Zhongguang
The fractal dimensions of fractured surfaces of CK45 steel subjected to different heat treatments have been determined. A relationship between the fractal dimensions and some mechanical properties...
Improvement in Fatigue Lifetime of Ti-6Al-4V Alloy by Boron Implantation. (1998)
Zhang, Dawei, Zhang, Xinping, Yu, Weicheng, Wang, Zhongguang
Ti-6al-4v alloy with and without boron ion implantation has been tested in stress-controlled tension-zero fatigue conditions. the alloy was implanted at energies of 120 kev and with doses of 2*10(17)...
Sun, Lizhi, Li, Shouxin, Zang, Qishan, Wang, Zhongguang
In the threshold stage, the fatigue crack propagation process is very sensitive to the microstructure of materials. this sensitivity arises as a result of microstructure induced crack deflection 1,2...
STRESS DISTRIBUTION IN SICP-AL COMPOSITE WITH INTERPHASE. (1998)
Li, Shouxin, Sun, Lizhi, Wang, Zhongguang
Chapman and Hall : London, England