Study on microstructure and corrosion resistance of high-hardness Zn-1.0Cu-1.0Ti alloy

doi:10.1016/j.matchar.2021.111283

CORC > 海洋研究所 > 中国科学院海洋研究所

	Study on microstructure and corrosion resistance of high-hardness Zn-1.0Cu-1.0Ti alloy
	Chen, Liangyuan 1,2,3; Ma, Xiumin 1,2,3; Ma, Zheng 1,2,3; Lu, Dongzhu 1,2,3; Hou, Baorong 1,2,3
刊名	MATERIALS CHARACTERIZATION
	2021-08-01
卷号	178 页码:16
关键词	As-cast Zn-Cu-Ti alloy Supersaturated solid solution TiZn16 phase Corrosion active site Building decoration material
ISSN号	1044-5803
DOI	10.1016/j.matchar.2021.111283
通讯作者	Ma, Xiumin(xma@qdio.ac.cn)
英文摘要	In order to develop a high durability building decoration zinc-based alloy materials, the as-cast Zn-1.0Cu-1.0Ti alloy (ZCT-AC) with homogeneous microstructure and high hardness was successfully prepared by induction melting and rapid solidification. Interestingly, almost all Ti element exists in the as-cast alloy in the form of the homogeneous strip-like TiZn16 phase, and the Cu element is uniformly dissolved in both the eta-Zn and TiZn16 phase in the form of supersaturated solid solution. The hardness of the ZCT-AC alloy was about 79.3% and 52.7% higher than that of pure Zn and a commercial cold-rolled zinc-titanium alloy (ZCT-CR), respectively. By potentiodynamic polarization tests in NaCl solution with four different mass fractions (0.1, 1.0, 3.5, and 5.0 wt%) at 25 degrees C and in 3.5 w.t% NaCl solution at four different temperatures (25, 35, 45, and 55 degrees C), ZCT-AC alloy showed higher corrosion resistance than the two control samples because of both a high formation efficiency and a high structural stability of passive film. Furthermore, Several plausible corrosion mechanisms of the three samples have been further studied systematically by a long-term immersion tests in 3.5 wt% NaCl solution, the results suggested that the corrosion process of ZCT-AC alloy was dominated by uniform corrosion which led to a higher interface uniformity, the corrosion layer of the alloy had higher uniformity and overall density, and the corrosion rate of both micro-galvanic corrosion and intergranular corrosion were inhibited significantly owing to the uniform distribution of Cu element. This study might provide a theoretical guidance for designing the high durability building decoration materials.
资助项目	China Railway[N2019G013] ; Chinese Academy of Engineering[2020-XZ-25]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE INC
WOS记录号	WOS:000744348000002
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/177717]
专题	中国科学院海洋研究所
通讯作者	Ma, Xiumin
作者单位	1.Chinese Acad Sci, Ctr Ocean Mega Sci, 7 Nanhai Rd, Qingdao 266071, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol, Open Studio Marine Corros & Protect, 1 Wenhai Rd, Qingdao 266200, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, 7 Nanhai Rd, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Chen, Liangyuan,Ma, Xiumin,Ma, Zheng,et al. Study on microstructure and corrosion resistance of high-hardness Zn-1.0Cu-1.0Ti alloy[J]. MATERIALS CHARACTERIZATION,2021,178:16.
APA	Chen, Liangyuan,Ma, Xiumin,Ma, Zheng,Lu, Dongzhu,&Hou, Baorong.(2021).Study on microstructure and corrosion resistance of high-hardness Zn-1.0Cu-1.0Ti alloy.MATERIALS CHARACTERIZATION,178,16.
MLA	Chen, Liangyuan,et al."Study on microstructure and corrosion resistance of high-hardness Zn-1.0Cu-1.0Ti alloy".MATERIALS CHARACTERIZATION 178(2021):16.