| 加压时间间隔对AZ91D镁合金微弧氧化膜的影响 |
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| 引用本文： | 吕维玲,马颖,陈体军,陈明,杨建,郝远.加压时间间隔对AZ91D镁合金微弧氧化膜的影响[J].焊接学报,2009,30(8):81-84. |
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| 作者姓名： | 吕维玲 马颖 陈体军 陈明 杨建 郝远 |
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| 作者单位： | 1. 兰州理工大学,甘肃省有色金属新材料省部共建国家重点实验室,兰州,730050
2. 兰州理工大学,有色金属合金及加工教育部重点实验室,兰州,730050 |
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| 基金项目： | 国家973计划基金资助项目(2007CB613700);;甘肃省科技重大基金资助项目(0702GKDA024);;教育部春晖计划基金资助项目(Z2006-1-62002) |
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| 摘 要： | 研究硅酸盐体系中加压时间间隔对AZ91D镁合金微弧氧化膜层的影响.利用TT230数字式涂层测厚仪、JSM—6700F扫描电子显微镜、2206型表面粗糙度测量仪(E34—001)和W—92涂层附着力划痕试验机研究了其微观结构,利用CHI660C电化学工作站和UMT—2MT型球-块往复式摩擦试验机进行耐蚀性和耐磨性的评定.结果表明,微弧氧化膜层的厚度、粗糙度和结合力随着加压时间间隔的增大而增大;孔隙率呈先增大后减小的趋势,在加压时间间隔为150s时出现了最大值;与基体相比,微弧氧化膜层的耐蚀性和耐磨性均提高,当加压时间间隔150s时耐蚀能力最佳,当加压时间间隔60s时耐磨性最强.
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| 关 键 词： | 镁合金 微弧氧化 加压时间间隔 微观结构 耐蚀性 耐磨性 |
| 收稿时间： | 2009/3/18 0:00:00 |
Effects of interval of enhancive voltage on micro-arc oxidation coatings of magnesium alloy AZ91D |
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| L&#; Weiling,MA Ying,CHEN Tijun,CHEN Ming,YANG Jian and HAO Yuan.Effects of interval of enhancive voltage on micro-arc oxidation coatings of magnesium alloy AZ91D[J].Transactions of The China Welding Institution,2009,30(8):81-84. |
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| Authors: | L&#; Weiling MA Ying CHEN Tijun CHEN Ming YANG Jian and HAO Yuan |
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| Affiliation: | 1.State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials;Lanzhou University of Technology;Lanzhou 730050;China;2.Key Laboratory of Non-ferrous Metal Alloys and Processing;Ministry of Education;China |
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| Abstract: | The effects of interval of enhancive voltage on micro-arc oxidation(MAO)coating of magnesium alloy AZ91D were investigated in silicate electrolyte.The microstructures were studied with TT230 digital coating thickness gauge,JSM-6700F scanning electron microscope,2206 surface roughness measuring instrument and W-92 Coating adhesion scratch test machine,and the corrosion and wear resistance were assessed by means of CHI660C electrochemistry workstation and UMT-2MT ball-block reciprocating friction tester.The r... |
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| Keywords: | magnesium alloy AZ91D micro-arc oxidation enhancive voltage interval corrosion resistance wear resistance |
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