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稀土元素Gd对NiAl-Cr(Mo)-Hf共晶合金的组织和压缩性能的影响梁永纯1,郭建亭2,盛立远3,周兰章4(1.广东省广州市广东电网公司电力科学研究院2.中国科学院 金属研究所, 沈阳 1100163.中国科学院 金属研究所4.中国科学院 金属研究所,沈阳 110016)摘 要:采用真空电弧炉熔炼方法制备了添加稀土元素Gd的Ni-33Al-28Cr-5.9Mo-0.1Hf(原子分数,%)合金,运用扫描电镜(SEM),电子探针显微分析(EPMA)及透射电镜(TEM)分析了该合金的微观组织形貌和相组成,采用Gl......
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:TG 111; TG146.2 文献标志码:A Electronic structure, stability and thermodynamic properties of Al-Sc intermetallics compounds LI Yan-feng1, 2, XU Hui1, 2, ZHANG Biao1, ZHANG... words: Al-Sc intermetallics compounds; electronic structure; stability; thermodynamic properties; Gibbs free energy; density functional theory; plane-wave pseudo-potential method  ......
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125.24 文献标志码:A Corrosion resistance of porous Ni3Al intermetallics in hydrochloric acid solution WU Liang, DONG Hong-xing, HE Yue-hui (State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China) Abstract: The porous Ni3Al intermetallics was fabricated using mixed Ni and Al powders as materials by P/M technique of diffusing and reaction......
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; Miedema模型; MTDATA; thermodynamic calculation; formation enthalpy; intermetallics of aluminum and rare earth; Miedema model; MTDATA; [全文内容正在添加中] ......
established, which can be used as the basis for adjusting the pore structure of porous intermetallics. Key words: pore constitution; tortuosity factor; TiAl intermetallics; porous material; reactive synthesis 1 Introduction Reactive synthesis process has been a widely used method for the preparation of porous intermetallics through the Kirkendall effect [1-4]. In the process, elemental powders......
in different temper conditions. ThermoCalc software was used to predict the different intermetallics that can be expected in the alloys, and scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS) was used to investigate the actual intermetallics that formed. The influence of these intermetallics on tensile properties was quantified. The results show that lower strength is obtained......
of oxidation. Key words: intermetallics; oxidation; diffusion; microstructure; Mo5SiB2  ... intermetallic alloys [J]. Intermetallics, 2006, 14: 1461-1471. [4] SADANANDA K, FENG C R, MITRA R, DEEVI S C. Creep and fatigue properties of high temperature silicides and their composites [J]. Mater Sci Eng......