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of magnesium alloys. In Mg-Al alloy, β-Mg17Al12 phase serves a dual purpose in corrosion: the β phase can act either as a barrier or as a galvanic cathode. If it is present as a small fraction, it serves... stirring during solidification on the microstructure and corrosion property of AZ61 magnesium alloy was investigated. The corrosion behaviour of AZ61 was studied in 3.5mol/L NaCl by measuring......
-standing of the FSW of cast Mg alloys. 2 Experimental The materials used in this study were FSWed Mg alloy AM50 (5.6%-6.4% Al, 0.26%-0.5% Mn, 0.20% Zn, Mg Bal., mass fraction), which was prepared... Microstructure evolution and tensile properties of friction-stir-welded AM50 magnesium alloy ZENG Rong-chang (曾荣昌)1, W. DIETZEL2, R. ZETTLER2, CHEN Jun (陈 君) 1, K. U. KAINER2 1. School......
of zinc, the strength and corrosion resistance of magnesium get reinforced. Addition of Zn element to Mg-Mn alloy stabilizes the passivation film, which mainly contributes to the low corrosion rate...-Zn-Y-Zr alloy in 1 g/L NaCl solution [J]. Journal of Materials Science, 2000, 35(1): 1-8. [15] BARIL G, PEBERE N. The corrosion of pure magnesium in aerated and deaerated sodium sulphate solutions [J......
. It could be seen that the coating was composed of Zn3(PO4)2×4H2O, AlPO4 and Zn. When magnesium alloy was soaked in the bath, α-Mg phases dissolved and hydrogen was evolved. The formation of hydrogen... process, Zn2+ ions were also reduced to Zn and deposited on the magnesium alloy surface. 3.3 Effects of phosphate bath compositions on adhesion of paint to magnesium alloy The first adhesion and second......
Rheo-diecasting of AZ91D magnesium alloy by taper barrel rheomoulding process YANG Liu-qing(杨柳青)1, KANG Yong-lin(康永林)1, 2, ZHANG Fan(张 帆)1, DING Rui-hua(丁瑞华)1, LI Jiong(李 炯)3 1... of about 45 μm and a shape factor of about 0.81. The magnesium alloy melt has complex stirring-fixed flow characteristics when flowing in TBR machine. Compared with conventional die-casing process, the rheo......
Influences of laser powers on microstructure and properties of the coatings on the AZ91HP magnesium alloy Dangsheng XIONG1,Yali GAO1,Yongzhe CHEN2,Cunshan WANG2 (1.School of Material Science... coatings were prepared on AZ91HP magnesium alloy by broad-beam laser cladding; the influences of the powers on the microstructure and properties of the coatings were discussed. It was found......
Preparation and Performance of Rare Earths Chemical Conversion Film on Magnesium Alloy Zhang Zhanwei1,Han Jing1,Zhang Qianyun1,Lü Qiaoyan1,Yu Shengxue1 (1.Department of Applied Chemistry, Yanshan... of the conversion film were analyzed by means of SEM and electrochemical method. Formation dynamics about cerium conversion film on magnesium alloy in solution containing cerium salt and the anti......
, including the RSP AZ91+ 3%-5%RE and RSP ZK60 (Mg-Zn-Zr)+3%MM alloys, were already investigated[6]. In addition, the rapidly solidified magnesium alloys can also be prepared by spray deposition[7-8... was conducted using SEM and EDS. The results are given in Fig.3. For the conventional cast AZ91 magnesium alloy, Zn distributes in both second phase and α-Mg matrix, while for the rapidly solidified......
]. There has been a rapid growth in interest in recent years in the development of high strength, lightmass magnesium alloys for elevated temperature applications[2-3]. The Mg-Y-Nd system, which usually... Mg-Al alloy, such as AZ91 and the second type of new alloy is the My-Y-Nd system, which we mentioned above, with examples being WE54 and WE43[5]. Considerable research has been carried out......
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