Effects of Y on Microstructure and Growth Mechanism of Pack Aluminizing Coatings on Nb Substrate

doi:10.12442/j.issn.1002-185X.20220882

IMR OpenIR

	Effects of Y on Microstructure and Growth Mechanism of Pack Aluminizing Coatings on Nb Substrate
	Zheng Liwei 1,2; Liu Enze 1; Zheng Zhi 1; Ning Likui 1; Tong Jian 1; Tan Zheng 1; Li Haiying 1
通讯作者	Liu Enze(nzliu@imr.ac.cn)
	2023-12-01
发表期刊	RARE METAL MATERIALS AND ENGINEERING
ISSN	1002-185X
卷号	52 期号:12 页码:4117-4124
摘要	Y modified aluminizing coatings were prepared on pure Nb substrates by aluminizing in the pack mixtures with Y2O3 addition. The effects of Y on the microstructure and growth mechanism of the coatings were studied. The results show that the Y has no obvious effect on the phase constitution of the coating and the grain morphology of NbAl3 phase. With the increase in Y2O3 content in the pack mixtures, the Y content on the coating surface increases. After Y modification, the growth mechanism of the coatings is changed from being controlled by the intergranular diffusion of Al atoms to being controlled by the intragranular diffusion of Al atoms; it reduces the growth rate of the coatings and contributes to the formation of two kinds of silk textures (<010>//ND and<110>//ND) in the columnar crystal area of NbAl3 phase.
关键词	Nb pack cementation aluminide coating reactive element effect
DOI	10.12442/j.issn.1002-185X.20220882
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001179368600011
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/184770
专题	中国科学院金属研究所
通讯作者	Liu Enze
作者单位	1.Chinese Acad Sci, 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	Zheng Liwei,Liu Enze,Zheng Zhi,et al. Effects of Y on Microstructure and Growth Mechanism of Pack Aluminizing Coatings on Nb Substrate[J]. RARE METAL MATERIALS AND ENGINEERING,2023,52(12):4117-4124.
APA	Zheng Liwei.,Liu Enze.,Zheng Zhi.,Ning Likui.,Tong Jian.,...&Li Haiying.(2023).Effects of Y on Microstructure and Growth Mechanism of Pack Aluminizing Coatings on Nb Substrate.RARE METAL MATERIALS AND ENGINEERING,52(12),4117-4124.
MLA	Zheng Liwei,et al."Effects of Y on Microstructure and Growth Mechanism of Pack Aluminizing Coatings on Nb Substrate".RARE METAL MATERIALS AND ENGINEERING 52.12(2023):4117-4124.