Effect of Ag on High-Temperature Oxidation Behavior of Mg-6.5Gd-5.6Y-0.1Nd-0.01Ce-0.4Zr Alloy

doi:10.1007/s40195-024-01732-x

IMR OpenIR

	Effect of Ag on High-Temperature Oxidation Behavior of Mg-6.5Gd-5.6Y-0.1Nd-0.01Ce-0.4Zr Alloy
	Guo, Shuang 1,2; Liu, Tianyu 2,3; Luo, Tianjiao 2,3; Li, Yingju 2,3; Feng, Xiaohui 2,3; Huang, Qiuyan 2,3; Zheng, Ce 2,3; Zhu, Cheng 2,3; Yang, Yuansheng 2,3,4; Li, Weirong 5; Li, Feng 1
通讯作者	Luo, Tianjiao(tjluo@imr.ac.cn) ; Li, Feng(lifhr@sut.edu.cn)
	2024-07-10
发表期刊	ACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN	1006-7191
页码	15
摘要	In this paper, the isothermal oxidation experiments were used to study the effect of Ag on the high-temperature oxidation behavior of Mg-6.5Gd-5.6Y-0.1Nd-0.01Ce-0.4Zr (wt%) alloy oxidized at 350 degrees C, 400 degrees C and 450 degrees C for 120 h. The results show that the oxidation weight gain of the alloy mainly occurs in the early oxidation stage (0-20 h). This reason attributes to the lack of protective oxide film and the rapid inward diffusion of oxygen through the macroscopic defects of the incomplete oxide film. When dense oxide films such as Y2O3, Gd2O3, and ZrO2 form, they hinder the inward transport of oxygen ions and improve the high-temperature oxidation resistance of the alloy. In addition, the role of the Ag element at three temperatures is different. The addition of Ag mainly promotes the formation of eutectic phases such as Mg3Gd, Mg24Y5, and Ag2Gd, which reduces the content of Gd and Y elements in the alloy matrix, resulting in a decrease in the diffusion rate of Gd and Y elements during the oxidation process at 350 degrees C and 400 degrees C, and weakens the oxidation resistance of Ag-containing alloys. However, in the oxidation experiment at 450 degrees C, a large amount of eutectic phase is solid dissolved into the matrix, reducing the difference in element content. At this time, it is detected that the Ag element promoted the outward diffusion of Gd and Y elements, accelerating the formation of the oxide film. The oxidation resistance of Ag-containing alloys is improved.
关键词	Magnesium alloy High-temperature oxidation Thermogravimetric analysis Gibbs free energy Oxide film Oxidation resistance
资助者	National Key Research and Development Program of China ; Applied Basic Research Program Project of Liaoning Province of China ; Key Research and Development Plan of Shanxi Province ; Dongguan Innovative Research Team Program
DOI	10.1007/s40195-024-01732-x
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2016YFB0301105] ; Applied Basic Research Program Project of Liaoning Province of China[2023020253-JH2/1016] ; Key Research and Development Plan of Shanxi Province[202102050201005] ; Dongguan Innovative Research Team Program[2020607134012]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001269262900004
出版者	CHINESE ACAD SCIENCES, INST METAL RESEARCH
引用统计	被引频次：1[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/321006/188201
专题	中国科学院金属研究所
通讯作者	Luo, Tianjiao; Li, Feng
作者单位	1.Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China 4.Qilu Univ Technol, Shandong Acad Sci, Shandong Prov Key Lab High Strength Lightweight Me, Jinan 250014, Peoples R China 5.Dongguan EONTEC Co Ltd, Dongguan 523662, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Guo, Shuang,Liu, Tianyu,Luo, Tianjiao,et al. Effect of Ag on High-Temperature Oxidation Behavior of Mg-6.5Gd-5.6Y-0.1Nd-0.01Ce-0.4Zr Alloy[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2024:15.
APA	Guo, Shuang.,Liu, Tianyu.,Luo, Tianjiao.,Li, Yingju.,Feng, Xiaohui.,...&Li, Feng.(2024).Effect of Ag on High-Temperature Oxidation Behavior of Mg-6.5Gd-5.6Y-0.1Nd-0.01Ce-0.4Zr Alloy.ACTA METALLURGICA SINICA-ENGLISH LETTERS,15.
MLA	Guo, Shuang,et al."Effect of Ag on High-Temperature Oxidation Behavior of Mg-6.5Gd-5.6Y-0.1Nd-0.01Ce-0.4Zr Alloy".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2024):15.