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Effects of laser processing parameters on solidification microstructures of ternary Al2O3/YAG/ZrO2 eutectic in situ composite and its thermal property SU Hai-jun(苏海军), ZHANG Jun(张 军... resolidification with a high powered CO2-laser was performed in preparing directionally solidified Al2O3/YAG/ZrO2 ternary eutectic ceramic in situ composite. The effects of laser processing parameters......
: exothermic dispersion reaction(XD); interface structure; aluminum matrix composites; orientation relationship; segregation 颗粒增强金属基复合材料由于其良好的力学, 热学性能以及高的比强度受到广泛重视, 并已在航空, 航天, 核能等领域得到广泛应... are consisted of α-Al2O3, TiB2 and Al3Ti when the B2O3/TiO2 mole ratio of B2O3 to TiO2 is less than 1. Al3Ti phase in stick shape has clean interface and good crystallographic relationship with aluminum......
J. Cent. South Univ. (2017) 24: 1269-1274 DOI: 10.1007/s11771-017-3531-8 Solution behavior of ZnS and ZnO in eutectic Na2CO3-NaCl molten salt used for Sb smelting YE Long-gang(叶龙刚)1, 2, HU Yu-jie(胡宇... in the molten salt remained constant at 0.02% and was unaffected by temperature; additionally, ZnO did not react with the molten salt. In contrast, the saturated amount of dissolved ZnS in the eutectic......
Preferred Orientation in Nanocomposite Permanent Magnet Materials Sun Guangfei1,Pang Lijia1,Zhang Jinbiao2,Qiang Wenjiang1,Chen Jufang1,Li Wenan2 (1.School of Materials Science and Engineering...+Ga, Nb+Ga) were prepared by melt-spinning technique. Ga addition is found to be effective for the orientation of c-axis of Nd2Fe14B grains perpendicular to the ribbon plane. Better magnetic properties......
model, and the strengthening effect of grain boundary was evaluated using Hall-Petch relationship. A modified plastic inclusion model was proposed using the concept of grain-orientation factor and T1... containing rare earth cerium was comparatively investigated. The difference of deformation texture in these two alloy sheets was analyzed by means of X-ray orientation distribution function (ODF). The results......
of the as-cast Al-7Si-0.3Mg casting alloy are prominently improved after addition of Al-2La-1B refiner, due to the refined microstructures. Key words: edge-to-edge matching; orientation relationship... spectrometer (EDX). Transmission electron microscopy (TEM) analysis was used to discover the crystalline orientation relationship between LaB6 and α(Al), which was performed on a Tecnai G2 instrument......
Solidification structure of eutectic Al-Si alloy under a high magnetic field-aid-electromagnetic vibration Yunbo ZHONG1,Kang DENG1,Weili REN1,Zhongming REN1,Jianbo YU1 (1.Department of Materials...) and an alternative electricity current to the metal.Its effects on the solidification structure of eutectic A1-Si alloy have been investigated experimentally. It is found that the eutectic structure has been......
orientation relationship between the precipitates andmatrix is (0001)P//(111 )γ-TiAl and [21 1 0]P//[011]γ-TiA1. Key words:γ-TiAl alloy; xenon ions irradiation; precipitate; [全文内容正在添加中] ......
Undercooling and rapid solidification of Nb-Si eutectic alloys studied by long drop tube WANG Yu-ren(王育人), DONG Shu-yong(董树勇), WEI Bing-chen(魏炳忱), LI Wei-huo(李维火) National Microgravity Laboratory... on the solidification process and micro-structural characterization of Nb-Si eutectic alloy was studied. The microstructures of the Nb-Si composites were investigated by optics microscope (OM), X-ray......
deformation of quasi-brittle materials, the isotropic damage loading-unloading function and damage variable were introduced to non-continuous bifurcation. The critical bifurcation orientation and its... of localized orientation angle and maximal hardening modulus dependent on degree of damage and initial Poisson’s ratio of rock were explored. Comparative analyses were conducted to study the bifurcation......