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EFFECT OF TUNGSTEN ADDITION ON MECHANICAL PROPERTIES OF Fe_3Al-BASED ALLOYS

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中国有色金属学会会刊：英文版 1999年第2期9卷 88-92页

作者： Feng, Xue Yangshan, Sun Southeast univ Nanjing China

１ＩＮＴＲＯＤＵＣＴＩＯＮＩｒｏｎａｌｕｍｉｎｉｄｅｓｂａｓｅｄｏｎＦｅ３Ａｌｏｆｅｒｅｘｃｅｌｌｅｎｔｏｘｉｄａｔｉｏｎａｎｄｓｕｌｆｉｄａｔｉｏｎｒｅｓｉｓｔａｎｃｅ，ｗｉｔｈａｌｏｗｅｒｍａｔｅｒｉａｌｃｏｓ... 详细信息

１ＩＮＴＲＯＤＵＣＴＩＯＮＩｒｏｎａｌｕｍｉｎｉｄｅｓｂａｓｅｄｏｎＦｅ３Ａｌｏｆｅｒｅｘｃｅｌｌｅｎｔｏｘｉｄａｔｉｏｎａｎｄｓｕｌｆｉｄａｔｉｏｎｒｅｓｉｓｔａｎｃｅ，ｗｉｔｈａｌｏｗｅｒｍａｔｅｒｉａｌｃｏｓｔａｎｄｄｅｎｓｉｔｙｔｈａｎｓｔ...

关键词： Fe3AlWmechanical properties

NONLINEAR RESPONSE OF A MOORING-LINE FOR A GIVEN HARMONIC LONGITUDINAL EXCITATION

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China Ocean Engineering 1987年第2期1卷 48-54页

作者： Sun Mingguang (Zhongshan university, Guangzhou) Zhongshan univ Guangzhou China Zhongshan Univ Guangzhou China

In the present paper, the resonant response of a vertical mooring-line in neutral buoyancy for a given harmonic longitudinal excitation is discussed. The law of stress-strain is nonlinear. For the above case, a nonlinear equation and corresponding boundary conditions are given. Based on the singular perturbation method, a quasi-periodic solution is obtained. There exists bifurcations through out the resonant region. The stability of the bifurcation solutions is *** method in the present paper can be extended for solving the subharmonic response.

关键词： line NONLINEAR RESPONSE OF A MOORING-LINE FOR A GIVEN HARMONIC LONGITUDINAL EXCITATION LINE

Abrasive Wear Characteristics of Carbon and Low Alloy Steels for Better Performance of Farm Implements

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Journal of Materials Science & Technology 1995年第2期11卷 91-96页

作者： M.Kumar and R. C Gupta(Centre of Advanced Study, Dept. of Metallurgical Engineering, Institute of Technology,Banaras Hindu university, Vaanasi -221 005, India) Banaraz Hindu univ Varanasi India

The low stress abrasion behaviours of heat treated mild, medium carbon and high C - low Cr steels, which are generally used in making farm implements, have been investigated. The simple heat treatment greatly improves the hardness, tensile strength and abrasion resistance of medium carbon and high C - low Cr steels. The results indicate that the material removal during abrasion is controlled by a number of factors, such as hardness, chemical composition, microstructure and heat treatment conditions. The conclusion is that the heat treated high C - low Cr steel and mild steel carburized by using coaltar pitch provide the best hardness and abrasion resistance and thus appear to be the most suitable materials for making agricultural tools.

关键词： Abrasive Wear Characteristics of Carbon and Low Alloy Steels for Better Performance of Farm Implements MPa

INFLUENCES OF HEAT-TREATING PROCESS ON DUCTILE FRACTURE MECHANISM UNDER MIXED MODE LOADINGS

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中国有色金属学会会刊：英文版 1998年第3期8卷 23-29页

作者： Hong, Zuo Fangwen, Wang Xi'an Jiaotong univ Xi'an China

１ＩＮＴＲＯＤＵＣＴＩＯＮＩｎｅｎｇｉｎｅｅｒｉｎｇｐｒａｃｔｉｃｅ，ａｌｏｔｏｆｃｒａｃｋｐｒｏｂｌｅｍｓｃａｎｂｅｉｎｃｌｕｄｅｄｉｎｄｉｆｅｒｅｎｔｃｏｍｂｉｎａｔｉｏｎｓｏｆｔｈｒｅｅｂａｓｉｃｆｒａｃｔｕ... 详细信息

１ＩＮＴＲＯＤＵＣＴＩＯＮＩｎｅｎｇｉｎｅｅｒｉｎｇｐｒａｃｔｉｃｅ，ａｌｏｔｏｆｃｒａｃｋｐｒｏｂｌｅｍｓｃａｎｂｅｉｎｃｌｕｄｅｄｉｎｄｉｆｅｒｅｎｔｃｏｍｂｉｎａｔｉｏｎｓｏｆｔｈｒｅｅｂａｓｉｃｆｒａｃｔｕｒｅｍｏｄｅｓ，ｉ．ｅ．ｍｉｘｅｄ...

关键词： mixed mode fracture fracture mechanism shearing yield strain hardening index

POLYPROPYLENE/Sn-Pb ALLOY NANOCOMPOSITES

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中国有色金属学会会刊：英文版 1999年第2期9卷 108-113页

作者： Xiong, Chuanxi Wen, Dijiang Wuhan univ of Technology Wuhan China

１ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅｒｅｓｅａｒｃｈｏｆｎａｎｏｍｅｔｅｒｍｅｔａｌ，ｃｅｒａｍｉｃｓａｎｄｐｏｌｙｍｅｒｈａｓｂｅｉｎｇｆｌｏｕｒｉｓｈｅｄｉｎｗｏｒｌｄｓｉｎｃｅＧｌｅｉｔｅｒＨ［１］，ｐｒｅｐａｒｅ... 详细信息

１ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅｒｅｓｅａｒｃｈｏｆｎａｎｏｍｅｔｅｒｍｅｔａｌ，ｃｅｒａｍｉｃｓａｎｄｐｏｌｙｍｅｒｈａｓｂｅｉｎｇｆｌｏｕｒｉｓｈｅｄｉｎｗｏｒｌｄｓｉｎｃｅＧｌｅｉｔｅｒＨ［１］，ｐｒｅｐａｒｅｄｔｈｅｎａｎｏｍｅｔｅｒｐａｒｔ...

关键词： polypropyleneSnPbnanocomposites

Reaction thermodynamics and kinetics on in situ Al_2O_3/Cu composites

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中国有色金属学会会刊：英文版 1999年第3期9卷 617-622页

作者： Li Guobin(李国彬) 1, Wu Jianjun(武建军) 1, Guo Quanmei(郭全梅) 2, Jiang Yanfei(姜延飞) 1, Shen Yutian(申玉田) 1, Lei Tingquan(雷廷权) 2 1. Department of Materials Science and Engineering, Hebei university of Technology, Tianjin 300130, P.R.Chi Hebei univ of Technology Tianjin China

The preferred internal oxidation of aluminum in Cu Al alloy was used to obtain in situ Al 2O 3/Cu composites. The reinforcement particles were mainly γ Al 2O 3, some θ Al 2O 3 and a little α Al 2O 3. Thermodynamics analyses show that the chemical reactions are 3Cu 2O+2Al=6Cu+Al 2O 3 or 3CuO+2Al=3Cu+Al 2O 3. A related equilibrium diagram was drawn. The experiments and investigation show that the formation rate of Al 2O 3 was controlled by the diffusion of oxygen in matrix.

关键词： Al 2O 3/Cu composites internal oxidation thermodynamics kineticsDocument code: A