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Evolution of the Corrosion Product Film and Its Effect on the Erosion–Corrosion Behavior of Two Commercial 90Cu–10Ni Tubes in SeawaterOkpo O.Ekerenam1,2,Ai-Li Ma1,Yu-Gui Zheng1,Si-Yu He1,Peter... and Applied Chemistry, University of Calabar摘 要:The composition and structural evolution of the corrosion product film of two commercial 90Cu–10Ni tubes......
. Key words: GM yield criterion; three-dimensional forging; continuous velocity field; inner product; analytical solution  ... equation, and from Eqn.(7), it yields (12) where I1, I2 and I3 are the termwise integrations of the inner-product of strain rate vector[15-17]. Substituting the values of Eqn.(9......
Performance evaluations on inner vs. outer decomposition first parallel join algorithms for two nested loop joinsSeo-Young NOH1, Heejun YOON1, Il-Yeon YEO1, Yoon-su JEONG2, Hyungwoo PARK1(1. National..., decomposing inner relation is considered as the right direction to save disk I/Os. However, two different decomposition algorithms are compared, such as inner vs. outer decomposition first algorithms......
increased the employment of electric power steering (EPS) in automotives. Optimal design of EPS for a product family reduces the development and fabrication costs significantly. In this paper... portability, RMS of Ackerman error, and product family penalty function (PFPF) as the conflicting objective functions. The results for the single objective optimization problems and the ones for the multi......
-layered corrosion product was produced. The outermost layer and the intermediate one were relatively loose and porous. Meanwhile, some continuous crevice bands and pores were observed. The inner layer... and 950 °C in air. The corrosion product was identified by XRD and its morphologies on the surface and cross-section were observed by SEM. The alloy suffered from considerable hot corrosion attack......
J. Cent. South Univ. (2012) 19: 1932-1937 DOI: 10.1007/s11771-012-1228-6 Calculation on inner wall temperature in oil-gas pipe flow DUAN Ji-miao(段纪淼)1, WANG Wei(王玮)1, ZHANG Yu(张宇)2, LIU Hui... equation, into the conjugated hydraulic and thermal computation have been found to improve the efficiency of algorithm. Then, the inner wall temperature of gas-liquid flow was calculated by using......
Effects of material properties on power spinning process of parts with transverse inner rib MA Fei(马 飞)1, 2, YANG He(杨 合) 1, ZHAN Mei(詹 梅) 1 1. State Key Laboratory of Solidification Processing...: Material properties of blank have a great effect on power spinning process of aluminum alloy parts with transverse inner rib. By using finite element(FE) and Taguchi method, the effects......
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development. Through developing study of product design for remanufacturing, it can promote the surface technologies application in the remanufacturing, and markedly enhance the efficiency of remanufacturing. This paper gives some relative concepts about product design for remanufacturing, such as remanufacturability, and brings forward the remanufacturability research contents and assessment......
内蒙古哈达门沟金矿床构造控矿规律及成矿预测辛向东1,刘纲2(1.内蒙古自治区包头市内蒙古包头鑫达黄金矿业有限责任公司2.中国人民武装警察部队黄金地质研究所)摘 要:哈达门沟金矿区构造格架由乌拉山复式背斜,山前大断裂,控岩断裂,控矿断裂及成矿后断裂等五大构造系统组成,矿床属山前大断裂引导产生的印支-燕山期构造-岩浆活动产物.矿脉受山前大断裂活动派生的次级构造和变质岩片理,不同岩性界面等构造薄弱面联合控制,在空间上具有南北成带,斜列和等距性分布规律,矿化则具有分段富集,向东侧伏,西高东低和上金下钼等特点.据上述成矿......