可降解铸态Zn-Cu-Sr合金的组织与性能

doi:10.11896/cldb.23060210

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Abstract In order to balance the mechanical properties and degradation rate of zinc-based alloys, the Zn-xCu-ySr(x=2, 3, 5;y=0.1, 0.3) ternary alloy was designed and cast, and the effects of different Cu and Sr contents on the microstructure and properties of as-cast Zn-Cu-Sr alloy were investigated. The results showed that the microstructure of Zn-xCu-ySr alloy consisted of zinc matrix, ε-CuZn₅ and SrZn₁₃ intermetallic compounds. When the contents of Cu and Sr were 5.0wt% and 0.3wt%, the tensile strength and hardness of zinc-based alloy reached the highest, which were 165.3 MPa and 85.5HB, respectively. The corrosion mode of Zn-xCu-ySr alloy was uniform corrosion. When the contents of Cu and Sr were 2.0wt% and 0.1wt%, respectively, the corrosion resistance of Zn-2Cu-0.1Sr was the best, the corrosion rate in static immersion test was the slowest, which was about 0.044 mm/a. And the corrosion current density and corrosion rate in potentiodynamic polarization test(PDP) were the smallest, which were 15.10 μA/cm² and 0.078 mm/a, separately.

Key words： degradable zinc alloy microstructure mechanical property corrosion resistance

Published: Online: 2024-10-12

CLC number:

TG146.1-3

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	Articles by authors
	CAO Xiaojun
	LIU Meichen
	YANG Kang
	MA Yiming
	WANG Junjie
	LI Junwan

Cite this article:

CAO Xiaojun,LIU Meichen,YANG Kang, et al. Microstructure and Properties of Degradable Cast Zn-Cu-Sr Alloy[J]. Materials Reports, 2024, 38(18): 23060210-7.

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http://www.mater-rep.com/EN/10.11896/cldb.23060210 OR http://www.mater-rep.com/EN/Y2024/V38/I18/23060210

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