Long-term oxidation behavior of silicon-aluminizing coating with an in-situ formed Ti5Si3 diffusion barrier on gamma-TiAl alloy

doi:10.1016/j.apsusc.2022.152444

IMR OpenIR

	Long-term oxidation behavior of silicon-aluminizing coating with an in-situ formed Ti5Si3 diffusion barrier on gamma-TiAl alloy
	Huang, Jiang 1,2; Zhao, Feng 1,2; Cui, Xinyu 1; Wang, Jiqiang 1; Xiong, Tianying 1
通讯作者	Wang, Jiqiang(jqwang11s@imr.ac.cn)
	2022-04-30
发表期刊	APPLIED SURFACE SCIENCE
ISSN	0169-4332
卷号	582 页码:13
摘要	In the present study, a novel silicon-aluminizing diffusion coating composed of uniform Ti (Al, Si)(3) phase was manufactured on gamma-TiAl alloy via post heat-treatment of cold-sprayed Al-40Si (wt.%) coating. The high temperature oxidation resistance of the diffusion coating was evaluated under 950 C for 1000 h. During the oxidation process, Ti5Si3 precipitations with network-like structure were shaped in the inner of the diffusion coating, which acted as getters for Ti and promoted the formation of Al2O3 scale. Meanwhile, an in-situ Ti5Si3 diffusion barrier was also formed, which inhibited the interdiffusion between the coating and substrate, especially the fast depletion of Al in the diffusion coating and thus improved the long-term oxidation resistance of gamma-TiAl. The microstructure evolution, formation of the in-situ diffusion barrier and high temperature oxidation resistance mechanisms of the diffusion coating were discussed in detail.
关键词	High-temperature oxidation Silicon-aluminizing diffusion coating In-situ diffusion barrier gamma-TiAl Cold spray Ti (5) Si (3)
资助者	National Natural Science Foundation of China
DOI	10.1016/j.apsusc.2022.152444
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51801217]
WOS研究方向	Chemistry ; Materials Science ; Physics
WOS类目	Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000762843600001
出版者	ELSEVIER
引用统计	被引频次：31[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/321006/173154
专题	中国科学院金属研究所
通讯作者	Wang, Jiqiang
作者单位	1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Huang, Jiang,Zhao, Feng,Cui, Xinyu,et al. Long-term oxidation behavior of silicon-aluminizing coating with an in-situ formed Ti5Si3 diffusion barrier on gamma-TiAl alloy[J]. APPLIED SURFACE SCIENCE,2022,582:13.
APA	Huang, Jiang,Zhao, Feng,Cui, Xinyu,Wang, Jiqiang,&Xiong, Tianying.(2022).Long-term oxidation behavior of silicon-aluminizing coating with an in-situ formed Ti5Si3 diffusion barrier on gamma-TiAl alloy.APPLIED SURFACE SCIENCE,582,13.
MLA	Huang, Jiang,et al."Long-term oxidation behavior of silicon-aluminizing coating with an in-situ formed Ti5Si3 diffusion barrier on gamma-TiAl alloy".APPLIED SURFACE SCIENCE 582(2022):13.