High-plasticity rapidly-degradable Mg-Li-Gd-Ni alloy and preparation method thereof

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United States of America Patent

PATENT NO 11926885
APP PUB NO 20230235430A1
SERIAL NO

17836888

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Abstract

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The present disclosure provides a high-plasticity rapidly-degradable Mg—Li—Gd—Ni alloy, including the following chemical elements by mass percentage: 1.0-10.0% of Gd, 0.2-2.0% of Ni, 5.5-10% of Li, and the rest of Mg and inevitable impurities. The impurities have a total content less than or equal to 0.3%. The present disclosure further provides a preparation method of the high-plasticity rapidly-degradable Mg—Li—Gd—Ni alloy. The high-plasticity rapidly-degradable Mg—Li—Gd—Ni alloy provided by the present disclosure constructs an α-Mg+β-Li dual-phase matrix structure by introducing β-Li with a body-centered cubic (BCC) structure with relatively more slip systems to improve plasticity of the alloy, then adds a certain amount of Gd element to weaken texture and promote non-basal plane slip, and further improves plasticity. In addition, by introducing the high-potential Ni-containing LPSO phase, a large potential difference with α-Mg and β-Li is formed to increase the degradation performance.

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Patent Owner(s)

  • CHONGQING UNIVERSITY OF POST AND TELECOMMUNICATIONS

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dai, Chaoneng Chongqing, CN 2 0
Ma, Kai Chongqing, CN 133 7232
Ren, Jie Chongqing, CN 161 5627
Wang, Jingfeng Chongqing, CN 12 3

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