The Pilling-Bedworth Ratio of Oxides Formed From the Precipitated Phases in Magnesium Alloys

doi:10.3389/fmats.2021.761052

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	The Pilling-Bedworth Ratio of Oxides Formed From the Precipitated Phases in Magnesium Alloys
	Jiang, Quantong 1,2,3; Lu, Dongzhu 1,2,3; Liu, Chang 1,2,3; Liu, Nazhen 1,2,3; Hou, Baorong 1,2,3
刊名	FRONTIERS IN MATERIALS
	2021-11-16
卷号	8 页码:12
关键词	oxide PBR value magnesium alloys precipitated phases Mg-Y
ISSN号	2296-8016
DOI	10.3389/fmats.2021.761052
通讯作者	Jiang, Quantong(jiangquantong@qdio.ac.cn) ; Liu, Nazhen(liunazhen@qdio.ac.cn)
英文摘要	The Pilling-Bedworth ratio of oxides preferentially formed from the precipitated phases in magnesium alloys were calculated. The results showed that the PBR value of Nd2O3 preferentially formed from Mg12Nd was 1.0584, and the PBR value of Y2O3 preferentially formed from Mg24Y5 was 1.1923. Both the Nd2O3 and Y2O3 would provide a good protection to the Mg matrix. The Gd2O3 preferentially formed from Mg3Gd, whereas the MgO preferentially formed from MgNi2. The PBR value of these two oxides were both larger than 2. The corresponding oxides formed from the common precipitated phases Mg17Al12, MgZn2, MgCu2, Mg2Ca, Mg12Ce, and MgAg were all less than 1. The oxide films formed on surfaces of pure Mg and Mg-xY (x = 3, 5, 7 wt.%) alloys at high temperatures were analyzed. The results showed that the oxide films were composed of a Y2O3/MgO outer layer and an inner layer rich with Y2O3. The formation of Y2O3 was mainly caused by the oxidation of Mg24Y5. The more Y2O3 existed in the composite oxidation film, the better corrosion resistance of the Mg-Y samples.
WOS研究方向	Materials Science
语种	英语
出版者	FRONTIERS MEDIA SA
WOS记录号	WOS:000725623800001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/177302]
专题	海洋研究所_海洋腐蚀与防护研究发展中心
通讯作者	Jiang, Quantong; Liu, Nazhen
作者单位	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Environm Corros & Biofouling, Qingdao, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, Qingdao, Peoples R China 3.Qilu Univ Technol, Sch Mat Sci & Engn, Jinan, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Quantong,Lu, Dongzhu,Liu, Chang,et al. The Pilling-Bedworth Ratio of Oxides Formed From the Precipitated Phases in Magnesium Alloys[J]. FRONTIERS IN MATERIALS,2021,8:12.
APA	Jiang, Quantong,Lu, Dongzhu,Liu, Chang,Liu, Nazhen,&Hou, Baorong.(2021).The Pilling-Bedworth Ratio of Oxides Formed From the Precipitated Phases in Magnesium Alloys.FRONTIERS IN MATERIALS,8,12.
MLA	Jiang, Quantong,et al."The Pilling-Bedworth Ratio of Oxides Formed From the Precipitated Phases in Magnesium Alloys".FRONTIERS IN MATERIALS 8(2021):12.