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composites were prepared by copper mold casting under the low vacuum with the argon atmosphere, and the raw materials used in preparing the Mg-Cu-Y-Zn alloys were commercially pure materials... applications[18-20]. So, in this work, the Mg-Cu-Y-Zn BMG matrix in situ composites were prepared by copper mold casting, under the low vacuum with the argon atmosphere, with commercially pure raw materials......
J. Cent. South Univ. (2017) 24: 467-477 DOI: 10.1007/s11171-017-3449-9 A novel Lagrangian relaxation level approach for scheduling steelmaking-refining-continuous casting production PANG Xin-fu(庞新富... relaxation and operation precedence relaxation for solving a flexible job shop (FJS) scheduling problem from the steelmaking-refining-continuous casting process. Unlike the full optimization of LR......
Trans. Nonferrous Met. Soc. China 26(2016) 3292-3298 Effect of depressurizing speed on mold filling behavior and entrainment of oxide film in vacuum suction casting of A356 alloy Shan-guang LIU1,2... is the main factor of oxide film entrainment in vacuum suction casting. The design criterion of depressurizing rate was deduced, and the A356 alloy castings were poured to test the formula. The four-point......
Diffusion Carbide Layers, Formed on the Surface of Steel in the Vacuum Titanizing Process KASPRZYCKA Ewa1,NAKONIECZNY Aleksander1,BABUL Tomasz1,SENATORSKI Jan1 (1.Institute of Precision Mechanics, Warsaw, Poland) 摘要:Diffusion layers produced on carbon steel surface in vacuum titanizing process were investigated. Studies of layers thickness, their morphology, titanium, carbon and iron......
造的数值模拟[J]. 铸造, 2010, 59(2): 169-173.SUN Chang-bo, TANG Ning, SHI Feng-ling, FEI Jing, XU Qing-yan, LIU Bai-cheng. Numerical simulation of vacuum investment casting cartridge receiver [J]. Foundry...；调节片；熔模铸造 中图分类号:TG21+3 文献标志码:A Numerical simulation of stress of adjustment sheet during investment casting process HONG Yao-wu1, 2, WANG Tie-jun3, HAN Da-ping3, XU Qing-yan1......
matrix composites. By using vacuum casting-infiltration method to manufacture casting tungsten carbide particle reinforced composite,the addition of Ni can alter the microstructure of the matrix of composite.High carbon chromium steel was chosen as the substrate.The casting process was achieved at 1580℃with vacuum degree of 0.072-0.078 MPa.Padding of the molten steel in each part of the preform......
Vacuum preloading combined electroosmotic strengthening of ultra-soft soilPENG Jie(彭劼)1, 2, XIONG Xiong(熊雄)1, 2, MAHFOUZ A H3, SONG En-run(宋恩润)1, 2(1. Key Laboratory for Geomechanics and Embankment... of Engineering, Jazan University, Jazan 45142, Saudi Arabia)Abstract:To assess the effectiveness of vacuum preloading combined electroosmotic strengthening of ultra-soft soil and study the mechanism......
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......
