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, the corrosion current density is reduced by two orders of magnitude compared with that of uneroded Mg68Zn32 alloy. Key words: as-cast magnesium alloy; corrosion resistance; icosahedral quasicrystal; Mg-Zn... of magnesium alloys is enhanced obviously. 4 Discussion According to the as-cast microstructures and Mg-Zn-Y ternary alloy phase diagram, the a(Mg) solid solution is born in advance to the process......
to dislocation creep mechanism (from n<3 to n>3), arising in the steady-stage creep rate value of 2.89×10-9 s-1. Key words: magnesium alloy; as-cast magnesium alloy; creep mechanism; erbium  ... value is 5.8 for as-cast Mg-5Zn-2.5Er alloy, and the activation energy of the alloy(77.1 kJ/mol) is found to be also lower than that of grain boundary diffusion for pure magnesium (92 kJ/mol[14......
Influence of homogenizing on mechanical properties of as-cast AZ31 magnesium alloy ZHANG Bao-hong(张宝红)1, ZHANG Zhi-min(张治民)2 1. School of Materials Science and Engineering, North... September 2009; accepted 30 January 2010 Abstract: Forward extrusion experiments of as-cast AZ31 magnesium alloy were conducted at different temperatures and different extrusion ratios using the as-cast......
. The compound Al2Nd and Mg12 Nd were formed in magnesium alloy, which were distributed in the matrix in the shapes of strip and particle, evidently refined the as-cast structure. The as-cast tensile strength...-cleavage fracture. Key words:magnesium alloy; Nd; As-cast microstructure; mechanical property; rare earths; [全文内容正在添加中] ......
show that the hot compression of AZ80 magnesium alloy has the peak flow stresses of pre-strained alloy with finer grain, which are lower by 20% than those of as-cast alloy under the same deformation.... Fig.2 Comparison of peak stress The method of reducing forming force using as-cast billet pre-straining was put forward during magnesium alloy extrusion. Pre-straining was given for as-cast magnesium......
Microstructures and properties of reciprocating extruded as-cast ZK60 magnesium alloy JIANG Ting(姜婷) 1, 2, GUO Xue-feng(郭学锋)2, MA Guang(马光)1 1. Northwest Institute For Non-ferrous Metal... reciprocating extruded as-cast ZK60 magnesium alloy are 311 MPa, 214 MPa and 17.93%, respectively. The thermal expansion coefficient of RE-4-EX-ZK60-CT magnesium alloy is the lowest. More or less extrusion......
The experimental material is AZ80 magnesium alloy with the chemical compositions listed in Table 1. Table 1 Chemical compositions of AZ80 magnesium alloy (mass fraction, %) As-cast AZ80 alloy bars were... corrosion resistance, and the corrosion rate is only 33% that of the as-cast alloy. 3) When being deformed at 250 ?C, the corrosion rate of AZ80 magnesium alloy is dependent on the deformation degree......
Development of processing maps for as-cast ZE41A magnesium alloy S. ANBU SELVAN1, S. RAMANATHAN1, R. KARTHIKEYAN2, B. K. RAGHUNATH1 1. Department of Manufacturing Engineering, Annamalai...; The hot deformation behavior of as-cast ZE41A magnesium alloy was studied by employing both processing maps and microstructural observations. To obtain processing map, hot......
Hot-compression constitutive relation of as-cast AZ31 magnesium alloy SHI Ti(史褆), YU Kun(余琨), LI Wen-xian(黎文献), WANG Ri-chu(王日初), WANG Xiao-yan(王晓艳), CAI Zhi-yong(蔡志勇) School of Materials... analyzed the flow stress of as-cast AZ31 magnesium alloy under different deforming conditions, and studied its construction relations of thermal deformation behavior. Associating with the thermal......
July 2006; accepted 15 September 2006 Abstract: The microstructure of the as-cast, as-solution-treated and as-aged wrought magnesium alloy ZK60 was studied. The results indicate that the microstructure... of the as-cast ZK60 magnesium alloy is mainly composed of the matrix and semi-continuously distributed black network. When the magnification is enlarged, it is quite clearly that semi-continuous network......