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Introduction The key of the semisolid forming technology is the production of slugs with non-dendritic microstructure. To develop this microstructure, a number of methods have been presented, among which... pouring process also generating fine and granular crystal structures suitable for semisolid forming was hit upon by the authors. Clearly, the operation in the vertical pipe process is more convenient......
-step process that involves preparing a feedstock material with a non-dendritic microstructure, then heating the feedstock to the forming temperature in the semisolid region, and consequently forming...Trans. Nonferrous Met. Soc. China 27(2017) 1483-1497 Microstructural evolution during semisolid processing of Al-Si-Cu alloy with different Mg contents K. S. ALHAWARI1, M. Z. OMAR1, M. J. GHAZALI1, M......
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. The results indicate that the punch velocity obviously influences the microstructure through changing the secondary solidification behaviors and semisolid deformation mechanisms. The variations... of the thixoforged composite are ascribed to the elimination of porosities and the work hardening. Key words: thixoforging; semisolid deformation; fracture mechanism; strengthening mechanism 1......
Trans. Nonferrous Met. Soc. China 20(2010) s719-s722 Application of semisolid process to Zr-based metallic glass matrix composites T. Tamura, A. Makaya, K. Miwa Solidification... composites was made by a process combining cooling slope casting and Cu mold casting for Zr66.4Nb6.4Cu10.5Ni8.7Al8 alloys. The results show that the semisolid slurry which consists of the spheroidal......
Semisolid metal (SSM) processing has been recognized as a technique offering several potential advantages over casting or solid state forming, such as producing high quality components capable of full heat... 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......
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be strengthened by heat treatment. Therefore, in order to improve the quality of magnesium die-castings to expand its application scope, an advanced forming process should be employed. Semisolid... of the ways, the rheo-forming is the preferred one for development of new SSM process, wherein the slurry is formed during its solidification from molten melt to semisolid. Many methods have been employed......
Effect of holding time on microstructure of Mg-9Al-1Si alloy during semisolid isothermal heat treatment MA Guo-rui(马国睿), LI Xin-lin(李新林), LI Qing-fen(李庆芬) Center for Biomedical...: The effects of isothermal holding time on the semisolid microstructure of Mg-9Al-1Si (mass fraction,%) alloy were investigated. The research results indicate that the Mg-9Al-1Si alloy with non-dendritic......
words: semisolid metal processing; bi-metal composite; thixo-forming, die-forging; metal matrix composite 1 Introduction The semisolid metal processing (SSP) has been developed with the objective of near net forming of metals and alloys available for the mass production of light metal parts[1]. It uses semisolid slurries that are mixtures of globular solid particles uniformly suspended in a liquid......
