A novel phosphate-ceramic coating for high temperature oxidation resistance of Ti65 alloys

doi:10.1016/j.ceramint.2019.06.218

IMR OpenIR

	A novel phosphate-ceramic coating for high temperature oxidation resistance of Ti65 alloys
	Han, Rifei 1,2; Tariq, Naeem Ul Haq 1,3; Li, Jiayi 1,2; Kong, Lingyan 1; Liu, Jianrong 1; Shan, Xiurong 1; Cui, Xinyu 1; Xiong, Tianying 1
通讯作者	Kong, Lingyan(lykong@imr.ac.cn)
	2019-12-15
发表期刊	CERAMICS INTERNATIONAL
ISSN	0272-8842
卷号	45 期号:18 页码:23895-23901
摘要	A novel phosphate-ceramic coating was developed for high-temperature oxidation protection of Ti65 titanium alloy. Aluminum phosphate binder was strategically mixed with Al2O3 + SiC ceramic particles as the filler material and subsequently deposited on Ti65 titanium alloy by air spraying. High temperature oxidation behavior of the Ti65 substrate was studied in coated and un-coated state by performing series of isothermal oxidation and thermal shock tests at 650 degrees C. Microstructural and thermal evolutions under different conditions were investigated using scanning electron microscopy (SEM), electron-probe microanalysis (EPMA) and X-ray diffraction (XRD). It was revealed that under uncoated condition, the Ti65 alloy experienced severe oxidation and developed non-protective TiO2 oxide film. In contrast, phosphate-ceramic coated Ti65 alloy exhibited excellent oxidation resistance with small weight gain (0.35 mg/cm(2)) compared with that of the uncoated Ti65 alloy (1.05 mg/cm(2)). Microscopy results confirmed absence of TiO2 oxide scales at the coating-substrate interface. The significant enhancement in the oxidation resistance of the Ti65 alloy was attributed to the dense nature of the phosphate-ceramic protective coating with great thermal and chemical stability. Furthermore, the coating exhibited excellent thermal shock resistance for having compatible thermal expansion coefficient with the Ti65 alloy substrate.
关键词	Ceramic coating Ti65 alloy High-temperature oxidation Amorphous aluminum phosphate
资助者	National Natural Science Foundation of China
DOI	10.1016/j.ceramint.2019.06.218
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[50902131]
WOS研究方向	Materials Science
WOS类目	Materials Science, Ceramics
WOS记录号	WOS:000497245400004
出版者	ELSEVIER SCI LTD
引用统计	被引频次：20[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/135973
专题	中国科学院金属研究所
通讯作者	Kong, Lingyan
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China 3.Pakistan Inst Engn & Appl Sci, Dept Met & Mat Engn, Islamabad, Pakistan
推荐引用方式 GB/T 7714	Han, Rifei,Tariq, Naeem Ul Haq,Li, Jiayi,et al. A novel phosphate-ceramic coating for high temperature oxidation resistance of Ti65 alloys[J]. CERAMICS INTERNATIONAL,2019,45(18):23895-23901.
APA	Han, Rifei.,Tariq, Naeem Ul Haq.,Li, Jiayi.,Kong, Lingyan.,Liu, Jianrong.,...&Xiong, Tianying.(2019).A novel phosphate-ceramic coating for high temperature oxidation resistance of Ti65 alloys.CERAMICS INTERNATIONAL,45(18),23895-23901.
MLA	Han, Rifei,et al."A novel phosphate-ceramic coating for high temperature oxidation resistance of Ti65 alloys".CERAMICS INTERNATIONAL 45.18(2019):23895-23901.