| AZ91D镁合金化学镀Ni-P及Ni-W-P镀层的结构与耐蚀性 |
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| 引用本文： | 李端阳,沈波,任玉平,裴文利,杨中东,王继杰,秦高梧.AZ91D镁合金化学镀Ni-P及Ni-W-P镀层的结构与耐蚀性[J].中国腐蚀与防护学报,2010(3). |
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| 作者姓名： | 李端阳 沈波 任玉平 裴文利 杨中东 王继杰 秦高梧 |
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| 作者单位： | 东北大学材料与冶金学院;沈阳航空航天大学材料科学与工程学院; |
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| 基金项目： | “十一五”国家科技支撑计划项目(2006BAE04B097); 沈阳市人才资源专项(2007010303025)资助 |
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| 摘 要： | 在AZ91D镁合金上直接化学镀Ni-P和Ni-W-P镀层,并利用扫描电子显微镜、X射线衍射仪及电化学工作站研究后续热处理对化学镀层组织形貌、相组成及其耐蚀性的影响。结果表明,制备的Ni-P镀层为非晶态,而Ni-W-P镀层为纳米晶结构,两者在3.5%NaCl水溶液中的耐蚀性相当。热处理可以明显提高Ni-W-P镀层的耐蚀能力,但却稍微弱化Ni-P镀层的耐蚀能力,热处理后的Ni-W-P层自腐蚀电位相对于未处理的化学镀Ni-W-P或Ni-P层提高了约150 mV。
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| 关 键 词： | AZ91D镁合金 Ni-P镀层 Ni-W-P镀层 耐蚀性 |
STRUCTURE AND CORROSION RESISTANCE OF ELECTROLESS PLATING Ni-P AND Ni-W-P COATINGS ON AZ91D MAGNESIUM ALLOY |
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| LI Duanyang,SHEN Bo,REN Yuping,PEI Wenli,YANG Zhongdong,WANG Jijie,QIN Gaowu.STRUCTURE AND CORROSION RESISTANCE OF ELECTROLESS PLATING Ni-P AND Ni-W-P COATINGS ON AZ91D MAGNESIUM ALLOY[J].Journal of Chinese Society For Corrosion and Protection,2010(3). |
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| Authors: | LI Duanyang SHEN Bo REN Yuping PEI Wenli YANG Zhongdong WANG Jijie QIN Gaowu |
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| Affiliation: | LI Duanyang~1,SHEN Bo~1,REN Yuping~1,PEI Wenli~1,YANG Zhongdong~1,WANG Jijie~2,QIN Gaowu~1 (1.College of Materials and Metallurgy,Northeastern University,Shenyang 110819,2.School of Materials Science and Engineering,Shenyang University of Aeronauitical and Astronautics,Shenyang 110136) |
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| Abstract: | Ni-P and Ni-W-P coatings were prepared on AZ91D magnesium alloy by a direct electroless plating processing.The microstructure,phases and corrosion resistance of the prepared and post-annealed coatings were studied by using scanning electron microscopy,X-ray diffraction technique and electrochemical test.The results show that the Ni-P coating is of amorphous structure while the Ni-W-P coating is of nanocrystalline structure with a grain size of about 7 nm,and they have similar corrosion resistance against 3.... |
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| Keywords: | AZ91D magnesium alloy Ni-P coating Ni-W-P coating corrosion resistance |
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