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取向电工钢中MnS粒子析出形核行为 毛卫民1,安治国1 (1.北京科技大学新金属材料国家重点实验室,北京,100083;2.北京科技大学材料学系,北京,100083) 摘要:采用场发射扫描电子显微镜观察了取向电工钢中MnS粒子在热变形及不同温度保温后的析出形核行为.以经典的形核率理论为基础,确定了MnS粒子形核析出的更准确潜在位置密度,进而建立了改进的MnS析出形核模型.研究结果表明,MnS粒子主要在晶界和位错上形核,MnS在900℃析出时粒子密度最大.随热变形后保温温度的升高,位错密度及相应的MnS位错形核密度降低.理论计算与实验观察的结果符合良好. 关键词:取向电工钢; MnS析出; 形核率; 形核位置; grain-oriented electrical steels; MnS precipitation; nucleation rate; nucleation sites......
Electrical characteristics and microstructures of Pr6O11-doped Bi4Ti3O12 thin films CHEN Min(陈 敏)1, 2, HUANG Ke-long(黄可龙)2, MEI Xiao-an(梅孝安)1, HUANG Chong-qing(黄重庆)1, LIU Jing(刘 靖)1, CAI An-hui... of them; B means quadri- or quinquevalence ions, such as Ti4+, Nb5+, Ta5+; and m means integer number (＞1). The electrical conductivity, dielectric and optical properties of many doped (Sr, Nb, W, etc......
Phase formation and electrical characteristic of NASICON ceramics ZHU Dong-mei(朱冬梅), LUO Fa(罗 发), XIE Zhang-long(谢章龙), ZHOU Wan-cheng(周万城) State Key Laboratory of Solidification Processing... were analyzed and the dependences of density, phase formation, and the microstructure on the sintering temperature were investigated in detail. The AC electrical conductivity and the buck conductivity......
="ChDivSummary">The understanding of Goss texture in Hi-B electrical steels possesses significant industrial and academic value, thus attracts worldwide attention. The prevailing models for sharp Goss...Analysis of Micro-texture during Secondary Recrystallization in a Hi-B Electrical SteelMengqi Yan1), Hao Qian1), Ping Yang1), Weimin Mao1), Qiwu Jian2) and Wenxu Jin2) 1) School of Materials Science......
J. Cent. South Univ. (2020) 27: 853-866 DOI: https://doi.org/10.1007/s11771-020-4336-8 Mechanical and electrical properties of coarse-grained soil affected by cyclic freeze-thaw in high cold...-Verlag GmbH Germany, part of Springer Nature 2020 Abstract: To evaluate the geotechnical properties of coarse-grained soil affected by cyclic freeze-thaw, the electrical resistivity and mechanical tests......
Measurement of electrical conductivity of micron-scale metallic wires JU Bing-feng, JU Yang, M. SAKA Department of Nanomechanics, Graduate School of Engineering, Tohoku University, Aoba 6-6-01, Aramaki, Aoba-ku, Sendai, 980-8579, Japan Received 10 April 2006; accepted 25 April 2006 Abstract: Electrical conductivities of micron-scale aluminum wires were quantitatively......
Effect of Initial Goss Texture Sharpness on Texture Evolution and Magnetic Properties of Ultra-thin Grain-oriented Electrical SteelRui-Yang Liang,Ping Yang,Wei-Min MaoSchool of Materials Science and Engineering, University of Science and Technology Beijing摘 要:In this study, high-and low-grade grain-oriented electrical steels were used as the initial......
An improved deep forest model for forecast the outdoor atmospheric corrosion rate of low-alloy steelsYuanjie Zhi1,Tao Yang1,Dongmei Fu1,21. School of Automation and Electrical Engineering, University.... Firstly, we collect 409 outdoor atmospheric corrosion samples of low-alloy steels as experiment datasets. Then, we give the proposed methods process, including random forests-K nearest neighbors(RF......
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