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Effect of thermal aging on properties and microstructure of AlSi-hBN coating

  • Jianming Liu
  • , Yueguang Yu*
  • , Tong Liu
  • , Suyuan Yang
  • , Xingwang Cheng
  • *此作品的通讯作者
  • Northeastern University China
  • Beijing General Research Institute of Mining and Metallurgy
  • Beijing Institute of Technology

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

A commercial abradable coating AlSi-hBN was fabricated by atmospheric plasma spraying and was thermal aged at 450°C in the atmospheric environment for 1000h. Thermal aging effect on coating abradablity, hardness, bond strength and microstructure were evaluated. It was found that coating abradability increased obviously after 2h thermal aging and slightly decreased for extended thermal aging time. A sharp decrease in both coating hardness and bond strength were found after 2h thermal aging and a slow increase occurred with the extended aging time. Relationships between coating properties and microstructure were studied. Decomposition of organic binder and sintering of AlSi matrix metal generated by thermal aging were found to be reasons for coating properties changes.

源语言英语
主期刊名International Thermal Spray Conference and Exposition, ITSC 2017
出版商ASM International
1000-1003
页数4
ISBN(电子版)9781510858220
出版状态已出版 - 2017
活动International Thermal Spray Conference and Exposition, ITSC 2017 - Dusseldorf, 德国
期限: 7 6月 20179 6月 2017

出版系列

姓名Proceedings of the International Thermal Spray Conference
2

会议

会议International Thermal Spray Conference and Exposition, ITSC 2017
国家/地区德国
Dusseldorf
时期7/06/179/06/17

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