共搜索到19889条信息,每页显示10条信息,共1989页。用时:0小时0分0秒296毫秒
to magnesium [J]. Corrosion Science, 2000, 42: 275-288. [8] Dabala M, Brunelli K, Enrico N, Maurizio M. Cerium chemical conversion coatings on AZ63 magnesium alloy [J]. Surface Coating Technology, 2003... the optimum electrochemical deposition parameters, and investigating the morphology and the corrosion resistance of cerium conversion films on Mg-RE alloys. 2 Experimental 2.1 Pre-treatment The chemical......
Barium phosphate conversion coating on die-cast AZ91D magnesium alloy LIU Feng(刘 锋)1, 2, SHAN Da-yong(单大勇)1, HAN En-hou(韩恩厚)1, LIU Chang-sheng(刘常升)2 1. State Key Laboratory...; Abstract: Poor corrosion resistance limits the application of magnesium alloys. Conversion coating is widely used to protect magnesium alloys because of easy operation......
:The corrosion-resistant coating formed on the surface of sintered Nd-Fe-B magnet by a phosphate chemical conversion(PCC) treatment was studied.The morphology...Corrosion prevention of sintered Nd-Fe-B magnet by a phosphate chemical conversion treatmentXia Ding1,Xiu-Chun Wang2,Kai-Hong Ding3,Sheng-Li Cui3,Yong-Cong Sun3,Mu-Sen Li11. Key Laboratory for Liquid......
A Study on Medium Temperature Chemical Vapor Deposition (MT-CVD) Technology and Super Coating Materials LI Jian-ping1,ZENG Xiang-cai1,MA Wen-cun1,GAO Jian1 (1.Chengdu Tool Institute, Chengdu 610051) 摘要:In this paper, the dense and columnar crystalline TiCN coating layers with very good bonding strength between a layer and another layer was deposited using Medium Temperature Chemical Vapor......
. Chemical molybdate conversion treatments for zinc [J]. Metal Finishing, 1988, 86(9): 71-74. [13] Li G Y, Niu L Y, Lian J S, Jiang Z H. A black phosphate coating for C1008 steel [J]. Surface and Coatings...; 1 Introduction Phosphating is one of the most important chemical conversion processes for the purposes of corrosion......
evolution rates for bare alloy, alloy specimens with chemical conversion coating and NrP coating immersed in 3.5% NaCl solution 膜上进行化学镀镍后,极化阻力显著增加,腐蚀电流密度降低3个数量级,可对基体合金起到较好的防护作用.极化测试后的样品表面形貌如图9所示.对于铸态合金,其初始的腐蚀形态为点蚀,随 图8锡酸盐转化处理前后及镀镍后A291D合金在3. 5% NaCl溶液中的动电位极化曲线 Fig.8 Potentiodynamic polarization curves for bare alloy, alloy specimens with chemical conversion coating and NrP coating......
Laboratory, Physical Chemistry Department, Chemistry Faculty, University of Tabriz, Tabriz, Iran) Abstract:A cerium-based chemical conversion process was studied. First, zinc coating obtained from a free...) measurements. The surface morphology of the coating was studied using scanning electron microscopy (SEM). The composition and chemical percent of the coating were examined by X-ray dispersion energy (EDAX......
Corrosion behavior of rare earth cerium based conversion coating on aluminum alloy赵丹,孙杰,张丽丽,谭勇,李季School of Environmental and Chemical Engineering,Shenyang Ligong University摘 要:coating was obtained when the compositions were as follows:CeCl3·7H2O,0.05 mol/L;H2O2,30 ml/L;current density,1.1 mA/cm2......
Corrosion behavior of rare earth cerium based conversion coating on aluminum alloy赵丹,孙杰,张丽丽,谭勇,李季School of Environmental and Chemical Engineering,Shenyang Ligong University摘 要:coating was obtained when the compositions were as follows:CeCl3·7H2O,0.05 mol/L;H2O2,30 ml/L;current density,1.1 mA/cm2......
] HUO H, LI Y, WANG F. Corrosion of AZ91D magnesium alloy with a chemical conversion coating and electroless nickel layer[J]. Corrosion Science, 2004, 6(1): 1467-1477. [14] ANICAI L, MASI R... values[J]. Acta Materialia, 2011, 59(1): 355-363. [31] MANUELE D, KATYA B, ENRICO N, MAURIZIO M. Cerium-based chemical conversion coating on AZ63 magnesium alloy[J]. Surface and Coatings Technology, 2003......