首页|Achieving high strength, excellent ductility, and suitable biodegradability in a Zn-0.1Mg alloy using room-temperature ECAP

Achieving high strength, excellent ductility, and suitable biodegradability in a Zn-0.1Mg alloy using room-temperature ECAP

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? 2022 Elsevier B.V.High alloying elements effectively strengthen zinc alloys, but these elements also usually decrease the ductility and corrosion resistance of such alloys. In the present study, energy-saving and efficient rotary-die equal-channel angular pressing (ECAP) was successfully applied to a zinc alloy with a low Mg content (0.1 wt%) at room temperature (RT), which facilitated the formation of a microstructure with a fine grain size (1.14 ± 0.22 μm), weak texture, and dynamically precipitated nano-sized Mg-Zn precipitates at the grain interior. The Zn-0.1Mg alloy formed via RT-ECAP exhibited an outstanding performance, with a high ultimate tensile strength of 383 MPa, excellent ductility of 45.6 %, and a suitable biodegradation rate of 0.014 mm/y in Hank's solution. This alloy is thus a promising candidate for various biodegradable medical applications.

Biodegradable behaviorEqual-channel angular pressingMechanical propertyRoom temperatureZn-0.1Mg alloy

Ye L.、Liu H.、Sun C.、Zhuo X.、Jiang J.、Ju J.、Xue F.、Bai J.、Xin Y.

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College of Mechanics and Materials Hohai University

College of Materials Engineering Nanjing Institute of Technology

College of Materials Science and Engineering Southeast University

Key Laboratory for Light-weight Materials Nanjing Tech University

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2022

Journal of Alloys and Compounds

Journal of Alloys and Compounds

EISCI
ISSN:0925-8388
年,卷(期):2022.926
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