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Preparation of AZ91D magnesium alloy semi-solid billet by new strain induced melt activated method JIANG Ju-fu(姜巨福)1, 2, LUO Shou-jing(罗守靖)1, ZOU Jing-xiang(邹经湘)2 1. School of Materials Science...; accepted 6 April 2006 Abstract:New strain induced melt activated (new SIMA) method for preparing AZ91D magnesium alloy semi-solid billet is introduced by applying equal channel angular extrusion......
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Trans. Nonferrous Met. Soc. China 22(2012) s422-s427 Microstructure and properties of AZ80 alloy semisolid billets fabricated by new strain induced melt activated method JIANG Ju-fu1,2, WANG Ying3... Abstract: AZ80 alloy semisolid billets were fabricated by a new strain induced melt activated method (SIMA), which involved the predeformation of as-cast AZ81 alloy via equal channel angular extrusion (ECAE......
May 2010; accepted 25 June 2010 Abstract: Semisolid billet of AZ80 magnesium alloy was prepared by new strain induced melt activated (new SIMA) process and thixoforging experiment was performed... such as tensile strength of 298 MPa and elongation of 28% can be developed in final part thixoforged. Key words: AZ80 magnesium alloy; semi-solid forming; thixoforging; semisolid billet; strain induced melt......
Microstructural evolution during semisolid state strain induced melt activation process of aluminum 7075 alloy A. BOLOURI1, M. SHAHMIRI2, E. N. H. CHESHMEH2 1. Department of Mechanical...; accepted 25 June 2010 Abstract: The effects of compression ratio on the microstructure evolution of semisolid 7075 Al alloy produced by the strain induced melt activation (SIMA) process were investigated......
, China; 2. Faculty of Mechanical Engineering, Sichuan University of Science and Engineering, Zigong 643000, China) Abstract: Semi-solid ZCuSn10 copper alloy was fabricated by strain induced melt activated...: ZCuSn10 copper alloy; semi-solid; strain induced melt activated (SIMA) method; remelting parameter; grain size; shape factor 半固态加工技术最先由美国麻省理工学院FLEMINGS等[1-2]提出,该技术具有成形温度较液态成形的低,变形抗力较固态成形的小等优点,能成形复杂形状,高精度零件......
; strain induced melt activation(SIMA); semi-solid microstructure; evolution mechanism 1 Introduction In order to meet the demands for more economic use of fuel and lower emissions, the use.... Compared with other methods, strain induced melt activation(SIMA) is a good method for preparing magne- sium alloy semi-solid billets without melting. JI et al[9] investigated the lathe process of AZ91D......
the refinement of the grain and the improvement of the morphology for primary phase. Key words: AlSi9Mg alloy; compound fabrication technology; orthogonal test; strain induced melt activating(SIMA) 1... technologies, such as near-liquidus casting, new MIT (semi-solid rheocasting), rotating tube and strain induced melt activating(SIMA), emerge in an endless stream and form a fine complexion that all......
Engineering, Harbin Institute of Technology, Harbin 150001, China Received 1 February 2012; accepted 5 April 2012 Abstract: New strain induced melt activation (new SIMA) method was employed to prepare... strength and elongation of the thixo-extruded parts were greatly enhanced and microstructure was refined obviously. Key words: AZ61 magnesium alloy; semisolid billets; new strain induced melt activation......
Effect of electromagnetic force on melt induced by traveling magnetic field SU Yan-qing(苏彦庆), XU Yan-jin(徐严谨), ZHAO Lei(赵 雷), GUO Jing-jie(郭景杰), FU Heng-zhi(傅恒志) School of Materials... that the electromagnetic force on the melt increases linearly with the increasing length of the melt in the TMF. The TMF-induced Lorentz force increases with increasing frequency, and then decreases. The maximum value......
