Evaluation of microstructural evolution and corrosion types in ultrasonic assisted laser re-melted thermal barrier coatings under exposure to molten salts

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• 作者：Zhengjie Fan^a ; Kedian Wang^a ; Xia Dong^a ; ; Wenqiang Duan^a ; Rujia Wang^a ; Xuesong Mei^a ; Wenjun Wang^a ; Jianlei Cui^a ; Shuai Zhang^a ; Chengying Xu^b
• 关键词：Laser re-melting ; TBCs ; Ultrasonic-assisted ; Corrosion ; Phase transformation
• 刊名：Materials Letters
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：188
• 期：Complete
• 页码：145-148
• 全文大小：979 K
• 卷排序：188

文摘

Microstructure and corrosion types of TBCs were significantly affected by UVPO. Self-healing of the cracks occurred when exposed to volume expansion under 20% UVPO. Intergranular corrosion was observed under 20% UVPO. External corrosion was observed under 50% UVPO.