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more and rounder. If the stirring frequency is 200Hz, the ideal semi-solid microstructure of AZ91D magnesium alloy can be obtained when the stirring power is increased to 6.0kW. If the stirring.... If the AZ91D magnesium alloy billet prepared during electromagnetic stirring at the stirring frequency of 200Hz and the stirring power of 6.0kW is reheated to the solidus and liquidus temperature region......
α-Mg grains and all the factors increasing the arm''s root remelting difficulty will be favorable to the formation of rosette-type primary α-Mg grains. Key words:AZ91D magnesium alloy...MICROSTRUCTURAL FORMATION MECHANISM OF SEMI-SOLID AZ91D ALLOY H.T. Chen1,W.M.Mao1,Z.S.Zhen1,X.Y.Zhong1 (1.School of Materials Science and Engineering, University of Science and Technology Beijing......
Preparation and property evaluation of electroless Ni-P coatings on AZ91D magnesium alloy LI Xue-song(李雪松)1, 2, ZHANG Wen-xue(张文雪)1, JIANG Zhong-hao(江中浩)1 1. Key Laboratory of Automobile... as the complexing agent, the Ni-P coatings on AZ91D magnesium alloy were prepared. The influence of pH value of the bath on the content of phosphorus, microhardness and corrosion resistance of the deposits......
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Effects of ultrasonic dispersion on structure of electrodeposited Ni coating on AZ91D magnesium alloy WU Hua(吴 化)1, ZHAO Guo-liang(赵国良)1, MU Jun-wei(穆君伟)2, LI Xue-song(李雪松)1, HE Yi(何 毅...; Abstract: To obtain the refined electrodeposited nickel layer on AZ91D magnesium alloy......
缩;流变应力;Zener-Hollomon参数 中图分类号:TG146.2 文献标识码: A Compression deformation behavior of AZ91D magnesium alloy at elevated temperature ZHANG Xiao-hua, JIANG Ju-fu, LUO Shou-jing (School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China) Abstract: The compression tests of AZ91D magnesium alloy at elevated temperature......
Low temperature mechanical property of AZ91D magnesium alloy fabricated by solid recycling process from recycled scraps LI Dong-hua1, HU Mao-liang2, 3, WANG Hai-bo1, ZHAO Wang-an1 1. School...: Low temperature mechanical properties of AZ91D magnesium alloy fabricated by solid recycling process from recycled scraps were studied. Various microstructural analyses were performed using optical......
Influence of Procedure Parameters on Rheological Property of Semi-Solid AZ91D Magnesium Alloy Xie Shuisheng1,Li Xinggang1,Jiang Yunxi1,Li Lei1 (1.General Research Institute for Non-Ferrous Metals,Beijing 100088,China) Abstract:Semi-solid AZ91D magnesium alloy was investigated in isothermal steady-state condition. The influence of stirring technological parameters such as stirring temperature......
Trans. Nonferrous Met. Soc. China 20(2010) s739-s743 Microstructure evolution and thixoextrusion of AZ91D magnesium alloy produced by SSTT CHENG Yuan-sheng(程远胜)1, CHEN Qiang(陈 强)2... of 120.0 MPa and an elongation to fracture of 7.19%. Key words: AZ91D magnesium alloy; microstructure; semi-solid thermal transformation; thixoextrusion 1 Introduction Thixoextrusion, which belongs......
Improvement of corrosion resistance of AZ91D magnesium alloy by gadolinium addition ZHOU Xue-hua(周学华)1, 2, WEI Zhong-ling(卫中领)2, CHEN Qiu-rong(陈秋荣)2, GAN Fu-xing(甘复兴)1 1. School... the deposited Gd-containing phases and corrosion product films are believed to be responsible for the improved corrosion behaviour due to Gd addition. Key words: AZ91D alloy; magnesium alloy......