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Trans. Nonferrous Met. Soc. China 20(2010) s821-s825 In-situ observation of crystal detachment behavior in NH4Cl-H2O system from chilling metal surface with vibration ZHANG Ying(张... 2010; accepted 12 July 2010 Abstract:The crystal detachment behaviors from a chilling solid surface with vibration were investigated using a transparent NH4Cl-70%H2O alloy. The nucleation......
Effect of local chilling on morphology of primary α(Al) in semi-solid A356 alloy LIU Zheng(刘 政)1, 2, MAO Wei-min(毛卫民)2, ZHAO Zhen-duo(赵振铎)2 1. Faculty of Material and Chemical Engineering...; Abstract: The semi-solid slurry of A356 alloy was prepared by low superheat pouring and slightly electromagnetic stirring, in which a pure copper rod was used to produce local chilling......
Laser Surface Remelting of Medium Ni-Cr Infinite Chilling Cast Iron Roll XIE Song-jing1,ZHANG Qun-li1,YAO Jian-hua1 (1.Zhejiang University of Technology, Hangzhou, China) 摘要:Laser surface remelting of medium Ni-Cr infinite chilling cast iron was performed with a continuous wave CO2 laser beam with the power of 7 KW under the argon shielding. The microstructural analysis of the laser remelted......
frequency electromagnetic field was applied during the direct chilling casting process.The experimental results show that the new method can be used to prepare SiC particle-reinforced aluminum matrix......
sand mould with chill can strongly decrease the SDAS. Reduced SDAS close to the mould bottom because of chilling was obtained. Pressure seems to have no apparent effect on the SDAS. In order......
with on-site running data, which proves the reliability of the mathematical model. The results show that roll chilling has a significant effect on the temperature distribution in the slab. Key words......
Effect of Substrate Surface Microstructure on Heterogeneous Nucleation BehaviorYing Zhang, Meng Wang, Xin Lin and Weidong Huang State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi an 710072, China摘 要:The heterogeneous nucleation behaviors of NH4Cl crystal on a rough chilling surface of aluminum immerged......
was poured on the peripheral surface of a wheel rotating against pouring direction.At this stage,the solid crystals nucleated at the chilling surface were pushed to the melt by a heat resistance steel......
transfer behaviors of AZ80-1%Y alloy during low frequency electromagnetic casting (LFEC) and direct chilling casting were studied by in-situ temperature measurement. The results demonstrated that the low... and quality control for Mg billets, especially for large scale Mg billets, are extremely difficult in the conventional direct chilling (DC) casting. In order to restrain casting crack, improve......
University, Changsha 410083, China Received 4 January 2013; accepted 3 June 2013 Abstract: Al-5.8Mg-0.4Mn-0.25Sc-0.1Zr (mass fraction, %) alloys were prepared by water chilling copper mould ingot......