材料期刊网

Discussion of Dissipation Structure in a Directionally Solidified Alloy

Liling SUN , Qi WU , Jinghua ZHANG and Zhuangqi HU (State Key Lab. of Rapidly Solidified Nonequilibrium Alloys , Institute of Metal Research , Academia Sinica , Shenyang , 110015 , China)

材料科学技术（英文）

The dissipation theory was introduced into the solidification area to describe the inherent laws of solidification from a new viewpoint. Discussion demonstrates that the solid / liquid interface in a directionally solidified alloy belongs to a kind of dissipation struc...

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Preparation, Microstructure and Age Hardening of Rapidly Solidified Mo-alloys

NING Yuantao , S. H. Whang Institute of Precious Metals , Kunming , Yunnan , China. Barnett Institute of Northeastern University , Boston , MA 02115 , U. S. A.

材料科学技术（英文）

Various Mo-base alloys with high melting temperature were processed into ribbons and foils by the arc melt-spinning and the arc melt hammer-anvil technique. The preparation of ribbon and foil was introduced. The mechanical proper- ties, the surface topology and the mic...

关键词: Mo-alloys , null , null , null , null

Model for calculation of microstructural development in rapidly directionally solidified immiscible alloys

Transactions of Nonferrous Metals Society of China

A model has been developed for the calculation of the microstructural evolution in a rapidly directionally solidified immiscible alloy. Numerical solutions have been performed for Al-Pb immiscible alloys. Th...

关键词: immiscible alloy;directional solidification;microstructure;theory and;modeling;liquid miscibility gap

MICROSTRUCTURE AND MECHANICAL PROPERTIES OF RAPIDLY SOLIDIFIED Al-Fe BASED ALLOYS

W.J. Park , S. Ahn , R. Schmees , and Nack J. Kim(1)(Center for Advaned Aerospace Materials , POSTECH. Pohang 790-784 , Korea )2)(Research Institute of industrial Science & Technology , Pohang 790-600 , Korea )3)(Pratt and Whitney , West Palm Beach , FL , USA Manuscript received 26 August 1996)

金属学报(英文版)

The effects of additions of Ti and W on microstructure and mechanical properties of rapidly solidified Al-Fe-V-Si alloys were investigated. Alloy powders were produced by the centrifugal rotary atomization p...

关键词: :rapid solidification , null , null

METASTABLE PHASES IN RAPIDLY-SOLIDIFIED ALUMINIUMRICH Al-Sm ALLOYS

Y.T.Ning (Institute of Precious Metals , Kunming 650221 , China)

金属学报(英文版)

The splat foils of Al-Sm alloys with 0.04-0.06mm in thickness were made by hammeranvil technique. The estimated cooling rute was 106K/ order of magnitude. The extended solid solubility of Sm in α-Al reached 0.5at. % Sm. The intermediate phase in the rapidlysolidified A...

关键词: Al-Sm alloy , null , null

MICROSTRUCTURE AND TWINNING IN ORDERED ORTHORHOMBIC MARTENSITE IN RAPIDLY SOLIDIFIED TI3AL-NB ALLOYS

Materials Letters

The microstructure of rapidly solidified Ti3Al-Nb (Nb < 5 at%) alloys prepared by the hammer-and-anvil technique consists of alpha''(0) martensite with D-2(2) (P222(1)) structure. In the martensite there ...

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SOME DEVELOPMENTS IN RAPIDLY SOLIDIFIED ALUMINUM ALLOYS FOR ELEVATED TEMPERATURE APPLICATIONS

P.Y. Li , S.L. Dai , C.Y. Li and B.C. Liu Beijing Institute of Aeronautical Materials , P.O.Box 81 2 , Beijing 150001 , China

金属学报(英文版)

Therecent developments in elevated temperature ( ET) aluminum alloys prepared by therapidsolidification / powder metallurgy ( RS P/ M) process were reviewed briefly. TheRS P/ METaluminum alloyscan beclassified as(a) the aluminum transition metaltype, such as Al Fe...

关键词: rapidsolidification / powder metallurgy , null , null , null

Effects of Additional Elements on Microstructure and Precipitation Behaviour in Rapidly Solidified Al-Ti Base Alloys

Won-Wook Park , Chul-Jin Choi and Bong-Sun You (Dept. of Materials Processing , Korea Institute of Machinery and Metals , 66 Sangnam-Dong , Changwon , Kyungnam , Korea 641-010)(To whom correspondence should be addressed)

材料科学技术（英文）

Rapidly solidified Al-Ti base alloys were prepared by melt spinning at the cooling rate about 107 K/s. The melt-spun ribbons were used to observe the dricrostructures after heat treatment.In the supersaturat...

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Microstructure of Al-Si Alloys Rapidly Solidified from the Different Temperature Melts

Manchang GUI , Jun JIA , Guangsheng SONG , Qingchun LI

材料科学技术（英文）

Hypo- and hyper-eutectic Al-Si alloys were rapidly solidified from the low or high temperature melt using water quenching and melt-spinning technique. The differences in microstructure of rapid solidificatio...

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Microstructures and Mechanical Properties of Rapidly Solidified Mg-Al-Zn-MM Alloys

Yeon-Wook Kim

材料科学技术（英文）

Mg-Al-Zn-MM (misch metal) alloy powders were manufactured by inert gas atomization and the characteristics of alloy powders were investigated. In spite of the low fluidity and easy oxidation of the magnesium melt, the spherical powder was made successfully with the improved three piece nozzle system...

关键词: Mg alloy , null , null , null