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investment casting made by Zr(CH3COO)2-Y2O3 shell in vacuum casting was studied.Statistic was manipulated to study the distributions and types of the reaction layers. The morphology and composition...Reaction of titanium investment castings made by Zr(CH3COO)2-Y2O3 shellXin Guo1,2,Ya-Meng Wei1,3,Zhi-Gang Lu1,31. Department of Mechanical Engineering, Tsinghua University2. Academy of Opto......
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:Investment and suction casting (ISC) represents an economic and promising process route to fabricate automotive exhaust valves of γ-TiAl based alloys... bubble and surface air entrainment behavior are presented. It is found that by changing the filling pressure difference control methods from general suction casting to "air leakage" suction casting......
Creep Behaviors of DA Casting and Rolling GH4169 Superalloy () 摘要:After the billet of Casting and Rolling GH4169 alloy was directly aged (DA) treated at 720℃ and 620℃, creep behavior and deformed features of the alloy were investigated by means of the measurement of creep curves and microstructure observation. Results show that the DA Casting and Rolling GH4169 Superalloy displays a lower......
has many advantages such as lower investment cost, higher flexibility, longer casting times[1-3]. However, HDC process has some characteristic technical problems due to gravity difference between top...Effect of low frequency electromagnetic field on microstructures and macrosegregation of horizontal direct chill casting aluminum alloy ZHAO Zhi-hao(赵志浩), CUI Jian-zhong(崔建忠), DONG Jie(董 杰......
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Solidification behaviour of Al-7%Si-Mg casting alloys CHEN Zhong-wei(陈忠伟), LI Jin-shan(李金山), JIE Wan-qi(介万奇), LIU Lin(刘 林), FU Heng-zhi(傅恒志) (State Key Laboratory of Solidification Processing,Northwestern Polytechnical University, Xian 710072, China) Abstract: The effects of Mg content and cooling rate on the solidification behaviour of Al-7%Si-Mg(mass fraction) casting alloys have been......
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Simulation of microstructures in solidification of aluminum twin-roll casting based on CA LIU Xiao-bo(刘晓波)1, XU Qing-yan(许庆彦)2, JING Tao(荆 涛)2, LIU Bai-cheng(柳百成)2 1. School...; Abstract: The microstructures in the solidification process of aluminum twin-roll casting was simulated based on CA (Cellular Automation Method), and the nucleation model based......
