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microstructure with small and spheroidal primary particles surrounded by liquid phase is the origin of semisolid forming [10]. Therefore, it is necessary to verify that if the 6061 alloy used...% and HV 55.7 respectively. Key words: 6061 aluminum alloy; semisolid powder thixoforging; mechanical properties; tensile properties; hardness; microstructure 1 Introduction Particle-reinforced......
, CREMER R, WINKELMANN A, WITULSKI T, ZILLGEN M. Semisolid forming of aluminum alloys by direct forging and lateral extrusion [J]. J Mater Process Technol, 1994, 45: 359-364. [16] TURKELI A, AKBAS N... alloy; casting; grain refinement; strain induced melt activation; semisolid processing; tensile properties 1 Introduction 7075 aluminium alloy was developed over 70 years ago. However, many researches......
Inner and outer pressure forming of nickel based super-alloy thin-walled part with variable diameter sections WANG Zhong-jin(王忠金), GAO Tie-jun(高铁军) School of materials science and engineering...; Abstract: A novel forming method of nickel based super-alloy thin-walled part with variable diameter sections was proposed......
Forming characteristics of thin-walled tube bending process with small bending radius LI Heng(李 恒) , YANG He(杨 合), ZHAN Mei(詹 梅), GU Rui-Jie(谷瑞杰) Department of Materials Forming... bending radius cause the defects such as wrinkling, overthinning and cross-section distortion more prone to occur in bending process. Based on the analysis of the forming characteristics by analytical......
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Laser forming thin aluminum sheetsLI Li-qun(李俐群), CHEN Yan-bin(陈彦宾), LIN Shang-yang(林尚扬)(State Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 15001, China)Abstract:Laser forming is a flexible forming process that forms sheet metal by means of laser-induced stresses instead of by means of external force. With the rapid development of laser......
Semisolid A356 alloy feedstock poured through a serpentine channelXiao-rong Yang1,2),Wei-min Mao1),and Chong Gao1) 1) School of Materials Science and Engineering,University of Science and Technology... spheroidal and equiaxed nondendritic microstructures required for semisolid casting can be formed through a serpentine pouring channel.Effects of the pouring temperature and the vertical section length......
Effects of A-EMS processing parameters on semisolid slurry productionCHEN Xingrun,ZHANG Zhifeng,and XU Jun National Engineering & Technology Research Center for Nonferrous Metal Matrix Composites... and fluid flow model in semisolid Al alloy slurry preparation by A-EMS was developed.The effects of A-EMS processing parameters such as stirring current,stirring frequency and stirring gap width......
J. Cent. South Univ. (2017) 24: 1040-1049 DOI: 10.1007/s11771-017-3507-8 Heat treatment and granule medium internal high-pressure forming of AA6061 tube BI Jiang(毕江)1, 2, ZHAO Chang-cai(赵长财)1, BI..., Qinhuangdao 066004, China Central South University Press and Springer-Verlag Berlin Heidelberg 2017 Abstract: The new forming process of AA6061 alloy tube, including solution treatment, granule medium......