Papers by Author: Wei Min Zhou

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Authors: Wei Min Zhou, Yan Liu, Bohong Jiang, Xuan Qi
Abstract: Co-Ni alloys exhibit g(fcc)®e(hcp) martensitic transformation and show reversible induced strain under applied magnetic field, which means they are potential magneto-shape-memory materials. Polystalline of Co-Ni alloys with varied Ni content were prepared. The g(fcc)®e(hcp) martensitic transformation and shape memory effect (SME) of Co-Ni alloy were studied. The influences of Ni content and deformation temperature on SME were discussed. The shape recovery rate and recoverable strain decrease with the increase of Ni content.
2029
Authors: Wei Min Zhou
Abstract: Electrical contact resistance is an important parameter in resistance welding. In this article, a Gleeble 3500 thermal-mechanical testing machine was employed to measure the contact resistance. The machine is equipped with a special electrical resistance measuring system. The contact resistance is experimentally investigated for welding low carbon steel to themselves. A detailed work was carried out to investigate the influence of pressure, temperature on the contact resistance of low carbon steel. The experimental results show that the contact resistance decreases when pressure or temperature increases.
753
Authors: Qiu Bao Ouyang, Wei Min Zhou, Guo Ding Zhang, Di Zhang
Abstract: The objective of the present paper is to study the wetting phenomenon and improving methods of Al/SiC interfaces. The work of adhesion and contact angle of this system was calculated theoretically from the physicochemical model. The effects of alloy elements such as Mg and the processing temperature on wettability were also investigated theoretically. Based on the theoretical calculation results, some effective methods to improve the wettability were presented.
52
Authors: Qiu Bao Ouyang, Wei Min Zhou, Guo Ding Zhang, Di Zhang
Abstract: The objective of the present paper is to study the wetting phenomenon of metal-ceramic interfaces. Two composite systems, i.e., SiCox/Al+xMg and Al2O3/Al+xMg were selected for calculation. The effects of alloy elements such as Mg and the processing temperature on wettability were investigated theoretically. The calculated wetting contact angles from the physicochemical model are approximately in agreement with experimental values.
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