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deformation degree.Key words:hydroforming; microstructure; EBSD; tube; aluminum alloys......
Prediction of the Gibbs Free Energies of Formation of Intermediate Compounds in a Binary SystemLi Ruiqing General Research Institute for Non-ferrous Metals,Beijing摘 要:<正> A method for predicting the Gibbs free energies of intermediate compounds in a binary system has been presented,based upon the regulations of the Gibbs free energies of formation......
Modeling of shear induced coarsening effects in semi-solid alloys M. MODIGELL1, A. POLA2 1. AVT, Chair of Mechanical Process Engineering, RWTH Aachen University, Turmstr. 46, D 52056 Aachen... rheological shear experiments with semi-solid alloys, coarsening of the particles will falsify the interpretation of the experimental results. The coarsening is intensified by the shear induced......
and the recrystallization texture of magnetostrictive 0.1 at% Nb C-doped Fe83 Ga17 alloys were investigated. The directionally solidified columnar-grained structure substantially enhanced the tensile elongation at intermediate temperatures by suppressing fracture along the transverse boundaries. Compared with tensile elongations of 1.0% at 300℃ and 12.0% at 500℃ of the hot-forged equiaxed-grained alloys......
Numerical simulation of intermediate phase growth in Ti/Al alternate foils LIU Jiang-ping, LUO Liang-shun, SU Yan-qing, XU Yan-jing, LI Xin-zhong, CHEN Rui-run, GUO Jing-jie, FU Heng-zhi School... in the temperature range in the present work. The interdiffusion coefficient in a binary alloys consisting of components A and B is related to the tracer-diffusion coefficients, and ......
Optimization of RPC technique for refining the intermediate transformation microstructureXuemin Wang, Chengjia Shang, Shanwu Yang, Xinlai He, and Huibin WuMaterials Science and Engineering School, University of Science and Technology Beijing, Beijing 100083, China (Received 2001-10-18)摘 要:The influence of processing parameters of relaxation......
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Effect of liquid-liquid structure transition on solidification of Sn-Bi alloys ZU Fang-qiu(祖方遒), ZHOU Bing(周 兵), LI Xian-fen(李先芬), YI Xun(益 汛), CHEN Yi-ping(陈轶平), SUN Qi-qiang (孙其强) College...) on the solidification behaviors and morphologies of Sn-Bi alloys was studied further. The results show that the undercooling of the primary and eutectic phase increases and the microstructure becomes finer after......
Mg–3Gd–1Zn–0.4Zr(wt%, GZ31K) and Mg–6Gd–1Zn–0.4Zr(wt%, GZ61K) alloys were performed using a ball-on-disk configuration at room temperature. Friction coefficient and wear rate of the alloys were... spectrometer(EDS). It is found that the friction coefficient of the alloys decreases with increasing load, except the as-cast GZ61 K. The wear rates of the as-cast Mg–Gd–Zn–Zr alloys increase......
