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Evaluation of the Interfacial Adhesion between Brittle Coating and Ductile Substrate by Cross-Secitional Indention CHEN Guang-nan1,SU Jian-yu1,ZHANG Kun1 (1.Institute of Mechanics, Chinese Academy... brittle coating and ductile substrate. The experimental results on electroplated chromium coating/steel substrate show that the interfacial separation occurs due to the edge chipping of brittle coating......
conversion coating and electroless nickel layer [J]. Corros Sci, 2004, 46(6): 1467-1477. [6] Ambat R, Aung N N, Zhou W. Evaluation of microstructural effects on corrosion behaviour of AZ91D magnesium... Influence of sodium metanitrobenzene sulphonate on structures and surface morphologies of phosphate coating on AZ91D NIU Li-yuan(牛丽媛), LI Guang-yu(李光玉), JIANG Zhong-hao(江中浩), SUN Li-ping(孙丽萍......
Microstructure and property of zinc phosphate coating ondie-casting magnesium alloy AZ91D LI Guang-yu(李光玉), LIAN Jian-she(连建设), NIU Li-yuan(牛丽媛), JIANG Zhong-hao(江中浩) Key Laboratory of Automobile... method was described, which can form a uniform and dense phosphate conversion coating on the die -casting magnesium alloy AZ91D in a non-chromate and non-nitrite bath. The coating consists of Zn3(PO4......
, Pa; F is the maximum load of specimen abruption, N; S is coating surface area, m2. Three specimens with the same component were prepared and measured, the mean value was used as the ultimate...J. Cent. South Univ. Technol. (2008) 15: 526-530 DOI: 10. 1007/s11771-008-0099-3 Effect of carbon fibre on properties of TiB2/C composite cathode coating for aluminum electrolysis LI Jie(李 劼)1......
Study on Phytic Acid Conversion Coating on Mg-Li Alloy黄晓梅Key Laboratory of Superlight Materials and Surface Technology,Ministry of Education,Harbin Engineering University摘 要:The impact of phytic acid concentration,immersion time and soaking temperature on phytic acid conversion coating of the Mg-Li alloy are studied.The surface morphology......
Carbide Coating Preparation of Hot Forging Die by Plasma Processing杜文华School of Mechanical Engineering and Automation, North University of China摘 要:To meet the performance requirements of hot forging die heat resistant layer, the Ni60-SiC coating, Ni60-Cr3C2 coating, and Ni60-WC coating were prepared using W6Mo5Cr4V2 as substrate material with 30%SiC......
. The load value corresponds to point A is the critical adhesive force, which is equal to 1.02 N. The hardness and elastic modulus of the MAO coating are 4.2 GPa (about HV 400) and 71.1 GPa... coating in solution Ⅰ at the load of 1.0 N. In the initial stage as the load reaches up to 0.15 N, an abrasion groove originally evolves in the scar center, then is size enlarges with the increasing......
by Al2O3 particles in cemented powder during high temperature processing. A small quantity of Si and Na are also found in Al2O3 as contaminations. Fig.2(c) shows the oxidized coating surface consists of MoSi2, Mo5Si3 and amorphous phases composed of Si, O and Al elements. A dense oxidized film with smooth surface is formed on coating after oxidation (Fig.1(c)). The low melting point eutectic phase......
Properties of plasma sprayed NiCrAlY＋ZrO2 coating on TiAl alloy surface ZHOU Hai(周 海), CHEN Fei(陈 飞), L? Xiao-jing(吕晓静) College of Mechanical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China Received 15 July 2007; accepted 10 September 2007 Abstract: The NiCrAlY+ZrO2 thermal barrier coating was prepared on the surface of TiAl alloy by plasma......
