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and reactivity. The kinetic relationship of spreading ratio with spreading time was also investigated. Key words: wetting; interfacial reaction; precursor film CLC number: TG113.26; TG139.8 Document... were etched in the chemical solution (90%HNO3+10%HF). In order to identify the interfacial reaction product, after the solidified droplet was separated from the oxide substrate mechanically, the surface......
Effects of Carburized Parts on Residual Stresses of Thin-Rimmed Spur Gears with Symmetric Web Arrangements Due to Case-Carburizing Hiroshige Fujio1,Kouitsu Miyachika2,Satoshi Oda3,Hidefumi Mada4,Wei... of carburized parts on residual stresses of thin-rimmed spur gears with symmetric web arrangements due to the case-carburizing. The carbon content of each element of the FEM gear model due to carburizing......
Effects of shoulder on interfacial bonding during friction stir lap welding of aluminum thin sheets using tool without pin ZHANG Gui-feng(张贵锋)1, SU Wei(苏 伟)1, ZHANG Jun(张 军)1, WEI Zhong-xin(韦中新)2..., China Received 22 December 2009; accepted 4 May 2010 Abstract: To separately investigate the potential effects of shoulder on increasing interfacial bonded area and its mechanism, friction stir lap......
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Effect of Heat Treatment on the Microstructure and Residual Stresses in (Ti,Al)N FilmsYing Yang1), Shengsheng Zhao1), Jun Gong1), Xin Jiang2) and Chao Sun1) 1) State Key Laboratory of Corrosion.... The results indicate that the average residual stresses decrease slightly from -5.84 to -4.98 GPa with increasing annealing temperature. The stress depth distribution evolves from a sharp "bell" shape to a mild......
FEM ANALYSIS OF THERMAL STRESSES IN GRADIENT THERMAL BARRIER COATINGS PRODUCED BY EB-PVD H.B.Xu1,H.B.Guo1,S.K.Gong1 (1.Department of Materials Science & Engineering, Beijing University of Aeronautics andAstronautics, Beijiug 100083, China) Abstract:Gradient thermal barrier coatings (GTBCs) produced by co-deposition of mixtures ofAl-Al2 O3-YSZ onto metallic bond coat exhibited longer lifetimes......
STUDY ON NUMERICAL SIMULATION OF CASTING THERMAL STRESSES BASED ON FDM H.T.Lin1,R.X.Liu1,D.M.Liao1,L.L.Chen2,J.J.Yan1 (1.College of Materials, Huazhong University of Science and Technology, Wuhan 430074, China;2.Mechanic Department, The University of Iowa, Iowa City, IA 52246, USA) Abstract:A system for the numerical simulation of 3D temperature and stress fields during casting process......
Effect of gas pressure on residual stresses in AlN films deposited on Al substratesTIAN Jing(田 竞)1, XUE Xiang(薛 祥)1, Takao Hanabusa2, Kazaya Kusaka2(1. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China;2. Faculty of Engineering, Tokushuima University, Tokushima, Japan)Abstract:AlN Films were prepared on Al alloy substrates by cathode sputtering.The......