In vitro degradation behavior of novel Zn–Cu–Li alloys: Roles of alloy composition and rolling processing

Zn–alloys are considered to be promising biodegradable materials due to suitable degradation rates. In this paper, novel Zn–Cu–Li alloys with layered CuZn4 structure were achieved. The corrosion properties of newly developed biodegradable Zn–Cu–Li alloys in simulated body fluid was studied. Results...

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Autores principales:	Shiyu Huang, Luning Wang, Yufeng Zheng, Lijie Qiao, Yu Yan
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Biodegradable metal Zn–Cu alloy Corrosion products Simulated body fluid Rolling Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/b076891da58b42f89a5b983fda5bca34
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spelling	oai:doaj.org-article:b076891da58b42f89a5b983fda5bca342021-12-02T04:59:01ZIn vitro degradation behavior of novel Zn–Cu–Li alloys: Roles of alloy composition and rolling processing0264-127510.1016/j.matdes.2021.110288https://doaj.org/article/b076891da58b42f89a5b983fda5bca342021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0264127521008431https://doaj.org/toc/0264-1275Zn–alloys are considered to be promising biodegradable materials due to suitable degradation rates. In this paper, novel Zn–Cu–Li alloys with layered CuZn4 structure were achieved. The corrosion properties of newly developed biodegradable Zn–Cu–Li alloys in simulated body fluid was studied. Results indicated that the cold-rolled alloys presented a relatively uniform corrosion mode, although early corrosion occurred preferentially at phase boundaries. Galvanic corrosion and corrosion product films jointly determined the later corrosion process. Cu improved the corrosion potential and film properties in its solid solution state, induced galvanic corrosion, and provided a physical barrier to corrosion by forming CuZn4 phase. Rolling accelerated the initial corrosion rate by enhancing the matrix electrochemical activity, while it contributed to uniform corrosion by improving the CuZn4 phase shape. Finally, cold-rolled Zn–4Cu–0.02Li possessed the best corrosion resistance and mechanical properties combination among the prepared alloys, with a yield strength of 256 MPa, an ultimate strength of 342 MPa, a fracture elongation of 39.8 %, and a corrosion rate of nearly 55 μm/year.Shiyu HuangLuning WangYufeng ZhengLijie QiaoYu YanElsevierarticleBiodegradable metalZn–Cu alloyCorrosion productsSimulated body fluidRollingMaterials of engineering and construction. Mechanics of materialsTA401-492ENMaterials & Design, Vol 212, Iss , Pp 110288- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Biodegradable metal Zn–Cu alloy Corrosion products Simulated body fluid Rolling Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	Biodegradable metal Zn–Cu alloy Corrosion products Simulated body fluid Rolling Materials of engineering and construction. Mechanics of materials TA401-492 Shiyu Huang Luning Wang Yufeng Zheng Lijie Qiao Yu Yan In vitro degradation behavior of novel Zn–Cu–Li alloys: Roles of alloy composition and rolling processing
description	Zn–alloys are considered to be promising biodegradable materials due to suitable degradation rates. In this paper, novel Zn–Cu–Li alloys with layered CuZn4 structure were achieved. The corrosion properties of newly developed biodegradable Zn–Cu–Li alloys in simulated body fluid was studied. Results indicated that the cold-rolled alloys presented a relatively uniform corrosion mode, although early corrosion occurred preferentially at phase boundaries. Galvanic corrosion and corrosion product films jointly determined the later corrosion process. Cu improved the corrosion potential and film properties in its solid solution state, induced galvanic corrosion, and provided a physical barrier to corrosion by forming CuZn4 phase. Rolling accelerated the initial corrosion rate by enhancing the matrix electrochemical activity, while it contributed to uniform corrosion by improving the CuZn4 phase shape. Finally, cold-rolled Zn–4Cu–0.02Li possessed the best corrosion resistance and mechanical properties combination among the prepared alloys, with a yield strength of 256 MPa, an ultimate strength of 342 MPa, a fracture elongation of 39.8 %, and a corrosion rate of nearly 55 μm/year.
format	article
author	Shiyu Huang Luning Wang Yufeng Zheng Lijie Qiao Yu Yan
author_facet	Shiyu Huang Luning Wang Yufeng Zheng Lijie Qiao Yu Yan
author_sort	Shiyu Huang
title	In vitro degradation behavior of novel Zn–Cu–Li alloys: Roles of alloy composition and rolling processing
title_short	In vitro degradation behavior of novel Zn–Cu–Li alloys: Roles of alloy composition and rolling processing
title_full	In vitro degradation behavior of novel Zn–Cu–Li alloys: Roles of alloy composition and rolling processing
title_fullStr	In vitro degradation behavior of novel Zn–Cu–Li alloys: Roles of alloy composition and rolling processing
title_full_unstemmed	In vitro degradation behavior of novel Zn–Cu–Li alloys: Roles of alloy composition and rolling processing
title_sort	in vitro degradation behavior of novel zn–cu–li alloys: roles of alloy composition and rolling processing
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/b076891da58b42f89a5b983fda5bca34
work_keys_str_mv	AT shiyuhuang invitrodegradationbehaviorofnovelznculialloysrolesofalloycompositionandrollingprocessing AT luningwang invitrodegradationbehaviorofnovelznculialloysrolesofalloycompositionandrollingprocessing AT yufengzheng invitrodegradationbehaviorofnovelznculialloysrolesofalloycompositionandrollingprocessing AT lijieqiao invitrodegradationbehaviorofnovelznculialloysrolesofalloycompositionandrollingprocessing AT yuyan invitrodegradationbehaviorofnovelznculialloysrolesofalloycompositionandrollingprocessing
_version_	1718400911282274304

In vitro degradation behavior of novel Zn–Cu–Li alloys: Roles of alloy composition and rolling processing

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