Oxidation of metallic particle and its effect on properties of plasma sprayed coatings - 文章详情页

作者：

Wei, Qi (Wei, Qi.) | Zhang, Linwei (Zhang, Linwei.) | Li, Hui (Li, Hui.) | Cui, Li (Cui, Li.) (学者：崔丽)

收录：

EI Scopus PKU CSCD

摘要：

The　oxidation　mechanisms　of　iron　particles　and　NiCoCrAlY　particles　during　plasma　spraying　process　and　its　effect　on　the　sprayed　coatings　were　investigated　by　the　in-flight　particles　collection　setup　and　the　gas　shrouding.　The　results　show　that　there　are　two　oxidation　mechanisms　during　in-flight　oxidation:　one　is　the　diffusion　oxidation;　the　other　is　the　convective　oxidation,　which　are　decided　by　the　distance　from　the　spraying　particles　to　the　nozzle.　The　oxidation　content　increases　with　the　increasing　of　the　standoff　distance.　The　shrouded　gas　can　decrease　the　oxidation　content　of　in-flight　particles　and　increase　the　oxidation　resistance　of　NiCoCrAlY　coatings.

关键词：

Aluminum alloys Chromium alloys Cobalt alloys Inorganic coatings Oxidation Oxidation resistance Plasma jets Plasma spraying Sprayed coatings Spray nozzles Yttrium alloys

作者机构：

[ 1 ] [Wei, Qi]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Zhang, Linwei]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Li, Hui]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Cui, Li]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China

通讯作者信息：

电子邮件地址：

weiqi@bjut.edu.cn

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