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SHA Qing-yun , HUANG Guo-jian , GUAN Ju , MA Xiao-jun , LI Da-hang
钢铁研究学报(英文版)
The precipitates on austenite grain boundaries in an Nb-V-Ti microalloyed steel have been investigated by transmission electron microscope (TEM) examination of carbon extraction replica. The replica was prepared from specimen etched with saturated picric solution rather than Nital which is conventio...
关键词: precipitate , austenite grain boundary , replica , etch
材料科学技术(英文)
关键词:
中国腐蚀与防护学报
N。1Atmospheric Corrosivlty for Steels………………………………………………… .LIANG Caideng HO[I i。-tat(6)Caustic Stress Corrosion Cr。king of Alloy 800 Part 2.The Effect ...
许传龙 , 王式民
工程热物理学报
在加压密相气力输送实验装置上获得了不同操作条件下煤粉颗粒静电波动信号,并用Hilbert-Huang变换、功率谱进行分析.结果表明:随着表观速度的增加,静电波动信号主峰值的频率增大;静电波动信号希尔伯特-黄变换(Hilbert-
关键词: 颗粒静电 , 静电传感器 , 气-固两相流 , Hilbert-Huang变换
徐菊良 , 邓博 , 孙涛 , 李劲 , 蒋益明
金属学报 doi:10.3724/SP.J.1037.2009.00598
利用Thermo-Calc软件并结合金相显微镜,定性研究了2205双相不锈钢在800℃下敏化不同时间后的微观组织演变过程.通过研究扫描速率、介质成分、介质温度和试样表面状态优化了双环电化学动电位再活化法(DL-EPR),并用该优化方法研究了2205双相不锈钢晶间腐蚀敏感性.结果表明:DL-EPR法能...
关键词: 2205双相不锈钢 , DL-EPR , 晶间腐蚀敏感性 , σ相
Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
Monocrystalline copper samples with [001] and [221] orientations were subjected to shock/recovery experiments at 30 and 57 GPa and 90 K. The slip system activity and the microstructural evolution were investigated. Different defect structures, including dislocations, stacking faults, twins, microban...
关键词: Shock compression;Shock loading;Slip bands;Microtwins;Microbands;strain rate history;single-crystals;grain-size;constitutive;description;plastic-deformation;mechanical response;deformed metals;loaded nickel;substructure;recrystallization
Physical Review B
An elastic Ising model for CoMnO(6) chain is proposed to explain the ferroelectricity induced by collinear magnetic order in Ca(3)CoMnO(6), and then a mean-field theory with interchain spin interactions based on this model is developed. With inclusion of the dynamics of polarization domains at finit...
关键词: calcium compounds;cobalt compounds;dielectric polarisation;ferroelectricity;Ising model;magnetic susceptibility;multiferroics;optical susceptibility;one-dimensional oxides;magnetic-properties;multiferroics;ca3co1+xmn1-xo6
Physica B-Condensed Matter
Polycrystalline La0.5Lu0.2Sr0.3MnO3 samples prepared by thermal decomposition are investigated by means of electron diffraction and high-resolution transmission electron microscopy. Besides rhombohedral La0.7Sr0.3MnO3 phase (R-phase) and hexagonal LuMnO3 phase (H-phase) reported by
关键词: orthorhombic lattice;octahedral;substitution;atomic bonding;la0.7-xluxsr0.3mno3 perovskites;transport-properties;magnetoresistance;films
Materials Letters
Phase separation and microstructure of La0.7Sr0.3MnO3 doped with rare earth elements (Eu, Ho, Yb and Lu) are studied using X-ray diffraction (XRD) and transmission electron microscopy (TEM). Composition and diffraction analyses demonstrate that the ionic radius of doping element plays an important r...
关键词: ionic radius;crystalline structure;lattice constants;orthorhombic;perovskite;hexagonal non-perovskite;magnetoresistance;perovskites;films
陈伟 , 卢子兴
复合材料学报 doi:10.13801/j.cnki.fhclxb.20151204.002
基于 Huang(北京大学)和 Wang(北京大学)的理论和热力学第二定律,研究了有限变形下闭孔泡沫铝的非线性压缩行为。通过引入内变量及内变量的演化方程,给出了有限变形下同时考虑细观结构参数和黏性效应的有效幂律势函数及相应的应力表达式。基...
关键词: 球形闭孔高密度泡沫铝 , 有限变形 , 有效幂律势函数 , 非线性力学行为 , 黏性