2Zn11金屬間化合物組成。當(dāng)Gd添加量為0.5%時，形成了GdZn12化合物。鋅合金的硬度隨Gd添加量的增加而增加，在0.5% Gd添加量時，硬度達(dá)到最大值為1530 MPa。在0.25% Gd添加量時鋅合金具有高的抗拉伸強(qiáng)度，而在0.1% Gd添加量時鋅合金具有最低的腐蝕速率。"/>

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Gd添加量對Zn-1.2Cu-1.2Mg鋅合金組織和性能的影響
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1.南京工程學(xué)院 材料科學(xué)與工程學(xué)院，江蘇 南京 211167;2.江蘇省先進(jìn)結(jié)構(gòu)材料與應(yīng)用技術(shù)重點實驗室，江蘇 南京 211167

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基金項目:

Jiangsu Key Laboratory of Advanced Structural Materials and Applied Technology Open Fund ( ASMA201706); Science and technology innovation fund for college students of Nanjing Institute of Engineering (TB202002053)


Effect of Gd Addition Amount on Microstructure and Properties of Zn-1.2Cu-1.2Mg Zinc Alloy
Author:
Affiliation:

1.School of Material Science and Engineering, Nanjing Institute of Technology, Nanjing 211167, China;2.Advanced Structural Materials and Application Technology of Jiangsu Province, Nanjing 211167, China

Fund Project:

Jiangsu Key Laboratory of Advanced Structural Materials and Applied Technology Open Fund (ASMA201706); Science and Technology Innovation Fund for College Students of Nanjing Institute of Engineering (TB202002053)

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    摘要:

    研究了Zn-1.2Cu-1.2Mg-xGd（x=0，0.1，0.25，0.5，質(zhì)量分?jǐn)?shù)，%）鋅合金微觀組織、在模擬體液中的腐蝕行為和力學(xué)性能。結(jié)果表明，鋅合金組織主要由Zn固溶體和Mg2Zn11金屬間化合物組成。當(dāng)Gd添加量為0.5%時，形成了GdZn12化合物。鋅合金的硬度隨Gd添加量的增加而增加，在0.5% Gd添加量時，硬度達(dá)到最大值為1530 MPa。在0.25% Gd添加量時鋅合金具有高的抗拉伸強(qiáng)度，而在0.1% Gd添加量時鋅合金具有最低的腐蝕速率。

    Abstract:

    The microstructure, immersion corrosion behaviour in simulated body fluid and mechanical properties of Zn-1.2Cu-1.2Mg-xGd (x=0, 0.1, 0.25, 0.5, wt%) alloys were studied. The results show that the microstructure of zinc alloy is mainly composed of Zn solid solution and Mg2Zn11 intermetallic compound. When Gd addition content is 0.5wt%, the GdZn12 intermetallic compound appears. The microhardness of zinc alloy increases with the increase of Gd addition content, and when the addition content of Gd is 0.5wt%, the microhardness reaches maximum, 1530 MPa. The tensile strength increases first and decreases afterwards, and when the Gd addition content is 0.25wt%, the zinc alloy has high tensile strength. Zinc alloy with 0.1wt% Gd addition content has the lowest corrosion rate.

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王紅星,張炎,吳燦輝,魯千怡,劉龍龍,薛亞軍.Gd添加量對Zn-1.2Cu-1.2Mg鋅合金組織和性能的影響[J].稀有金屬材料與工程,2021,50(12):4282~4287.[Wang Hongxing, Zhang Yan, Wu Canhui, Lu Qianyi, Liu Longlong, Xue Yajun. Effect of Gd Addition Amount on Microstructure and Properties of Zn-1.2Cu-1.2Mg Zinc Alloy[J]. Rare Metal Materials and Engineering,2021,50(12):4282~4287.]
DOI：10.12442/j. issn.1002-185X.20200714

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  • 收稿日期:2020-09-15
  • 最后修改日期:2021-11-23
  • 錄用日期:2021-03-08
  • 在線發(fā)布日期: 2021-12-30
  • 出版日期: 2021-12-24