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Thermal-stress Simulation of Direct-chill Casting of AZ31 Magnesium Alloy Billets胡红军摘 要:Two-dimensional (2D) transient coupled finite element model... cracks and shrinkages during direct-chill (DC) casting process. Method of equivalent specific heat was used in the heat conduction equation. The boundary and initial conditions used for primary......
Trans. Nonferrous Met. Soc. China 31(2021) 565-575 Effect of casting speed on floating grains and macrosegregation of direct-chill cast 2024 alloy with intensive melt shearing Xu-dong LIU1,2, Qing..., Northeastern University, Shenyang 110004, China Received 4 May 2020; accepted 30 December 2020 Abstract: The ingot was prepared by direct-chill (DC) casting technology with different casting speeds under......
The evolution of microstructure and mechanical properties during high-speed direct-chill casting in different Al–Mg2Si in situ compositesDong-tao Wang,Hai-tao Zhang,Lei Li,Hai-lin Wu,Ke Qin,Jian-zhong CuiKey Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University摘 要:The effect of high-speed direct-chill(DC......
for approximating the explosive pressure profile [28]: 1) direct input of dynamic pressure as a function of time, 2) equation-of-state (EOS) and 3) pressure-decay functions. The Gaussian function......
Trans. Nonferrous Met. Soc. China 26(2016) 895-904 Characteristics evolution of 6009/7050 bimetal slab prepared by direct-chill casting process Guang-yuan YAN1, Feng MAO1, Fei CHEN1, Wei WU1, Zhi... Abstract: 6009/7050 alloy bimetal slab was prepared by a direct-chill (DC) casting process. Homogenizing annealing, hot rolling and T6 treatment were successively performed and their effects......
Direct-chill semi-continuous casting process of three-layer composite ingot of 4045/3004/4045 aluminum alloys JIANG Hui-xue, ZHANG Hai-tao, QIN Ke, CUI Jian-zhong Key Laboratory... of 4045/3004/4045 aluminum alloys was prepared by direct-chill semi-continuous casting process, the temperature field distribution near the composite interface, macro-morphology, microstructure......
agreement with each other at high cooling rates used in direct-chill casting process while Clyne and Davies’ model is more acceptable to determine hot tearing tendency from low to medium cooling rates. Key words: 2024 aluminum alloy; dendrite coherency; direct-chill casting; thermal analysis; hot tearing 1 Introduction Al2024 alloy is a famous heat treatable alloy widely used in automotive and aerospace......
Trans. Nonferrous Met. Soc. China 28(2018) 1007-1015 Numerical simulation for macrosegregation in direct-chill casting of 2024 aluminum alloy with an extended continuum mixture model Hai-jun LUO1... to predicting Cu and Mg segregation in large-size ingot of 2024 aluminum alloy during direct chill casting (DC). A microsegregation model using the approximate phase diagram data was coupled......
Trans. Nonferrous Met. Soc. China 28(2018) 9-19 Deformation and heat treatment ability of three-layer 6009/7050/6009 Al alloy clad slab prepared by direct-chill casting Guang-yuan YAN, Feng MAO, Zhi... of Technology, Dalian 116024, China Received 12 August 2016; accepted 24 March 2017 Abstract: Three-layer 6009/7050/6009 aluminum alloy clad slab was fabricated by an innovative direct-chill casting......
Direct-chilling casting of Mg alloy under electromagnetic and ultrasonic combined field CUI Jian-zhong(崔建忠), ZHANG Zhi-qiang(张志强), LE Qi-chi(乐启炽) Key Laboratory of Electromagnetic... on the edge of ingots when LFEC field is applied, while in the center of billets when field US is adopted. Combined the characteristics of LFEC and US fields, a new process for direct-chilling (DC) casting......