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to thixoforming, is a relatively new route for metal forming[1]. The process requires that the alloys should be treated so that they possess a non-dendritic, spheroidal microstructure when... S, ATKINSON H V, KAPRANOS P. Multistep induction heating regims for thixoforming 7075 aluminum alloy [J]. Mater Sci Technol, 2004, 20: 490-496. [2] ATKINSON H V, WARD P J. Thixoforming......
: 173-178. [5] MODIGELL M, KOPP R, SAHM P R, NEWSCHUTZ D, PETERA J. Basic investigations for optimization of the process parameters of thixoforming [C]// Proc 7th Int Conf on Advanced Semi-Solid Processing... Mech, 2001, 96: 383-403. [7] ZAVALIANGOS A, LAWLEY A. Numerical simulation of thixoforming[J]. J Mater Eng Perform, 1995, 4: 40-47. [8] ZUDE Z, QIANG C, HONGYING C, SHUHAI H, Microstructural......
, 2006, 116/117: 1-8. [3] NOLL T, FRIEDRICH B, HUFSCHMIDT M, MODIGELL M, NOHN B, HARTMANN D. Evaluation and modelling of chemical segregation effects for thixoforming processing[J]. Advanced Engineering Materials, 2003, 5 (3): 156-160. [4] KANG C G, JUNGIALS H K. A study on solutions for avoiding liquid segregation phenomena in thixoforming process: Part I. Constitutive modelling and finite......
] NOLL T, FRIEDRICH B, HUFSCHMIDT M, MODIGELL M, NOHN B, HARTMANN D. Evaluation and modelling of chemical segregation effects for thixoforming processing [J]. Advanced Engineering Materials, 2003, 5 (3): 156-160. [4] KANG C G, JUNGIALS H K. A study on solutions for avoiding liquid segregation phenomena in thixoforming process: Part I. Constitutive modelling and finite element method simulations......
is isotropic, its behaviour is purely viscoplastic and independent on pressure, and deformation is homogenous[10-13]. During a thixoforming process, no significant macroscopic liquid segregation occurs...] HIRT G, KOPP R. Thixoforming: semi-solid metal processing [M]. Weiheim: Willey VCH Ver Gmbh & Co, KGaA, 2009: 169-235. [2] KIRKWOOD D H, DAVID H. Semi-solid processing of alloy [M]. New York......
to prepare semisolid billet for thixoforming, and the latter was applied to prepare the slurry for rheoforming. AlSi6Mg2 alloy was thixoformed at the semisolid state. The technological parameters... for thixoforming but also the slurry for rheoforming. For preparing semisolid billet, the sloping plate should be cooled, while it needs preheating to prepare slurry. Through a great deal of experiments......
:2000-05-09 基金:国家自然科学基金!资助项目 ( 599750 1 1 );高等学校骨干教师资助!项目 ( [2 0 0 0 ]65号 );南昌大学基础理论基金!资助项目 (ND; Simulation of fill status during thixoforming of semi-solid... thixoforming of aluminum alloy (a) -Simulation; (b) -Experiment 图8 半固态铝合金触变成形过程中测量点的模拟压力曲线 Fig.8 Simulation and experiment pressures for measured point during semi-solid thixoforming of aluminum......
widely used in automobile, motorcycle and 3C fields due to low density, high specific strength and stiffness and excellent damping capacity [1,2]. Thixoforming is a net-shape method for forming complex Mg... and partial remelting) produced ideal, fine semi-solid microstructure. Three essential procedures including fabrication of semisolid billets, reheating and forming are involved in the thixoforming process......
into rheoforming and thixoforming[1-3]. Recently, many researchers have discovered that thixoforming has some disadvantages to be spread out into casting industry because of the complicated process... [J]. Trans Nonferrous Met Soc China, 2007, 17(4): 799-804. [18] CHO W G, KANG C G. Mechanical properties and their microstructure evolution in the thixoforming process of semi-solid aluminum alloy [J......
. Continuous casting of semisolid aluminium alloys [J]. Mater Sci Forum, 2002, 396/397/398/399/400/401/402(1): 203-208. [7] BIROL Y. Cooling slope casting and thixoforming of hypereutectic A390 alloy [J... A. Investigation on the behavior of aluminum base alloys by applying inclined plate [D]. Iran University of Science and Technology, 2004. [12] HAGA T, SUZUKI S. Casting of aluminium alloy ingots for thixoforming......
