Effect of Tm on Mechanical and Corrosion Properties of Zr-Based Bulk Metallic Glasses

	Effect of Tm on Mechanical and Corrosion Properties of Zr-Based Bulk Metallic Glasses
	Wang Shunping 1,2; Li Chunyan 1,2; Li Jinling 1; Wang Haibe 1; Kou Shengzhong 1,2
刊名	RARE METAL MATERIALS AND ENGINEERING
	2021-09
卷号	50 期号:9 页码:3076-3084
关键词	Zr-based metallic glass mechanical properties corrosion resistance Tm
ISSN号	1002-185X
英文摘要	A series of (Zr0.6336Cu0.1462Ni0.1012Al0.(12))(100-x)Tm-x (x=0 similar to 5, at%) bulk metallic glass (BMG) alloys were fabricated by copper mold suction casting, and the effect of Tm on the mechanical and corrosion properties were investigated. The results show that when Tm content increases to 3at%, the glass forming ability (GFA) and compressive plasticity are significantly improved, whereas GFA is decreased by adding excessive Tm. The maximum supercooled liquid region width (Delta T-x) of the alloy with x=3 is 100 K, the compressive fracture strength is 1669 MPa, and the plastic strain is 21.01%, which are much higher than those of the Zr0.6336Cu0.1452Ni0.1012Al0.12 BMG (67 K, 1439 MPa, and 5.90%). However, the electrochemical test results show that the alloy with x=3 does not have excellent corrosion resistance in 3.5wt% NaCl solution, and the change trend of corrosion resistance and mechanical properties with Tm content is different from the expectation. The possible reason is that the excessive addition of rare-earth element Tm easily causes more oxides, which leads to the severe pitting corrosion. Further addition of Tm can improve the integrity and pitting corrosion resistance of Zr-based BMG passivation film, but the mechanical properties are not ideal.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
WOS记录号	WOS:000708582000007
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150045]
专题	材料科学与工程学院
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China; 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Wang Shunping,Li Chunyan,Li Jinling,et al. Effect of Tm on Mechanical and Corrosion Properties of Zr-Based Bulk Metallic Glasses[J]. RARE METAL MATERIALS AND ENGINEERING,2021,50(9):3076-3084.
APA	Wang Shunping,Li Chunyan,Li Jinling,Wang Haibe,&Kou Shengzhong.(2021).Effect of Tm on Mechanical and Corrosion Properties of Zr-Based Bulk Metallic Glasses.RARE METAL MATERIALS AND ENGINEERING,50(9),3076-3084.
MLA	Wang Shunping,et al."Effect of Tm on Mechanical and Corrosion Properties of Zr-Based Bulk Metallic Glasses".RARE METAL MATERIALS AND ENGINEERING 50.9(2021):3076-3084.