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. This is attributed to an inhomogeneous austenite, resulting from the segregation of elements during the ESR solidification. 关键词:alloy cast steel; TTT diagram; segregation; microstructure; [全文内容正在...Transformation Behavior and Microstructure in a 40Cr2Ni2MoV Cast Steel Derek O.Northwood1,Sanjiwan.D.Bhole2,Cheng Liu2,Zhenbo Zhao1 (1.Mechanical, Automotive & Material Engineering, University......
Effect of Cd and Sn Addition on the Microstructure and Mechanical Properties of Al-Si-Cu-Mg Cast Alloy LI Run-xia1,LI Rong-de1,HU Zhuang-qi2,YU Li3 (1.Shenyang University of Technology, Shenyang... on the microstructure and mechanical properties of Al-Si-Cu-Mg cast alloy. With the increase of Cd addition the strength of alloy rises at first and then drops. The optimal amount of Cd and Sn addition......
Electroless nickel-plating on die cast magnesium alloy AZ91D JIA Su-qiu(贾素秋)1, JIA Shu-sheng(贾树胜)2, YAO Jun(姚 军)2 1. School of Materials Science and Engineering, Changchun University... Abstract: Electroless nickel-plating on die cast magnesium alloy AZ91D was investigated. Growth of the electroless nickel-plating coating was characterized using scanning electron microscopy. Corrosion......
Effect of Cooling Rate after hot Deformation on Structure and Mechanical Properties of Low Alloy Wear Resistance Cast iron Liu Jianping1,Li Lixia2 (1.College of Environmental & Chemical Engineering... of cooling rate after 40% hot deformation on structure and mechanical properties of low alloy wear resistance cast iron was investigated by metallographic, scanning electron microscopes and detection......
, Beijing 100084 , China;2.School of Metallurgical Engineering, Xi'an University of Architecture &Technology, Xi'an 710055, China) Abstract:Tungsten Alloy White Cast Iron(TAWCI) has great brittleness... of C. D of carbides.The service life of modified TAWCI roll is 35 % higher than that of high chromium cast iron roll, and its production cost is reduced by 25 %. Key words:tungsten alloy white cast......
Partial melting and re-solidification in partially melted zone during gas tungsten arc welding of AZ91 cast alloy T. P. ZHU1, Z. W. CHEN2, W. GAO1 1. Department of Chemical...; Abstract: During the welding of AZ91 cast alloy, the presence of eutectic b-Mg17Al12 phase results......
current capacity were tested and compared with ones of vacuum cast CuCr25 alloy. 2 Experimental Recently, new manufacture methods of CuCr25 contact material includes mechanical... alloys. Under the tensile test condition, the tensile strength of vacuum cast CuCr25Te alloy is 20-60 MPa, which is lower than that of CuCr25 alloy, but the yield strength changes little......
depleted zones in the Ni-Cr alloy. Key words: Co-Cr-Mo; Ni-Cr-Mo; dental cast alloy; corrosion; electrochemical impedance spectroscopy  ... Introduction In dental restorations, the most decisive property of a cast alloy in biocompatibility is corrosion[1]. Co and Ni based alloys were widely used in dental skeletal structures......
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Zincate mechanism on cast Al-Si alloy in non-cyanide multi-metal zincate solutions HUANG Xiao-mei(黄晓梅), LI Ning(李 宁), LI De-yu(黎德育), JIANG Li-min(蒋丽敏) Department of Applied Chemistry, Harbin.... Key words: cast Al-Si alloy; non-cyanide multi-metal zincate; zincate solution; zincate mechanism; apparent activation energy <上一页 1 2 3 4 5 6 7 8 9 10 ... 1904 下一页 >