2降低至2.05 μA/cm2；屈服強(qiáng)度、極限抗拉伸強(qiáng)度和伸長率從30.5 MPa、69.5 MPa和6%增加到84 MPa、154 MPa和8.6%。"/>

最新色国产精品精品视频,中文字幕日韩一区二区不卡,亚洲有码转帖,夜夜躁日日躁狠狠久久av,中国凸偷窥xxxx自由视频

+高級檢索
添加Zn、Zr、Dy元素對生物鎂合金耐蝕性能和力學(xué)性能的影響
作者:
作者單位:

1.河南科技大學(xué) 材料科學(xué)與工程學(xué)院，河南 洛陽 471023;2.有色金屬協(xié)同創(chuàng)新中心，河南 洛陽 471023;3.有色金屬新材料與先進(jìn)加工技術(shù)省部共建協(xié)同創(chuàng)新中心，河南 洛陽 471023

作者簡介:

通訊作者:

中圖分類號:

基金項(xiàng)目:

Education Department of Henan Province (20A430010)


Effects of Zn, Zr, and Dy Addition on Corrosion Resistance and Mechanical Properties of Biomaterial Magnesium Alloy
Author:
Affiliation:

1.School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, China;2.Collaborative Innovation Center of Nonferrous Metals, Luoyang 471023, China;3.Provincial and Ministry Co-construction of Collaborative Innovation Center for Non-ferrous Metal New Materials and Advanced Processing Technology, Luoyang 471023, China

Fund Project:

Foundation of Henan Educational Committee (20A430010)

  • 摘要
    • |
  • 圖/表
    • |
  • 訪問統(tǒng)計(jì)
    • |
  • 參考文獻(xiàn)
    • |
  • 相似文獻(xiàn)
    • |
  • 引證文獻(xiàn)
    • |
  • 資源附件
    • |
  • 文章評論
    摘要:

    通過光學(xué)顯微鏡（OM）、掃描電子顯微鏡（SEM）、浸泡實(shí)驗(yàn)、電化學(xué)測試和拉伸試驗(yàn)研究了微合金化處理對生物材料鎂合金的耐蝕性能和力學(xué)性能的影響。結(jié)果表明，隨著Zn、Zr、Dy元素的添加，鎂合金的晶粒得以細(xì)化，合金內(nèi)部第二相生成并長大。將元素Zn、Zr、Dy同時添加到鎂合金中時，合金的晶粒尺寸從1087 μm減小到70 μm，顯微組織也變得更均勻。此外，添加Zn、Zr、Dy元素可顯著改善鎂合金的耐腐蝕性和力學(xué)性能。根據(jù)浸泡實(shí)驗(yàn)可知，添加不同元素后，合金的腐蝕速率從2.01 mm/a降低至0.92 mm/a；自腐蝕電流密度從4.22 μA/cm2降低至2.05 μA/cm2；屈服強(qiáng)度、極限抗拉伸強(qiáng)度和伸長率從30.5 MPa、69.5 MPa和6%增加到84 MPa、154 MPa和8.6%。

    Abstract:

    The effects of micro-alloying treatment on corrosion resistance and mechanical properties of biomaterial magnesium alloy were investigated by optical microscope (OM), scanning electron microscope (SEM), immersion test, electrochemical test, and tensile test. The results show that after successively adding Zn, Zr, and Dy, the grain of magnesium alloys is refined and the second phase is generated and grows up. When Zn, Zr, and Dy are simultaneously added into magnesium alloy, the grain size of alloy is decreased from 1087 μm to 70 μm and the microstructure becomes more uniform. Moreover, the addition of Zn, Zr, and Dy significantly improves the corrosion resistance and mechanical properties of magnesium alloy: the corrosion rate decreases from 2.01 mm/a to 0.92 mm/a; the self-corrosion current density decreases from 4.22 μA/cm2 to 2.05 μA/cm2; the yield strength, ultimate tensile strength, and elongation increase from 30.5 MPa, 69.5 MPa, and 6% to 84 MPa, 154 MPa, and 8.6%, respectively.

    參考文獻(xiàn)
    相似文獻(xiàn)
    引證文獻(xiàn)
引用本文

師慧娜,賀俊光,文九巴,李歡,田培梧.添加Zn、Zr、Dy元素對生物鎂合金耐蝕性能和力學(xué)性能的影響[J].稀有金屬材料與工程,2021,50(11):3871~3878.[Shi Huina, He Junguang, Wen Jiuba, Li Huan, Tian Peiwu. Effects of Zn, Zr, and Dy Addition on Corrosion Resistance and Mechanical Properties of Biomaterial Magnesium Alloy[J]. Rare Metal Materials and Engineering,2021,50(11):3871~3878.]
DOI：10.12442/j. issn.1002-185X.20200663

復(fù)制
文章指標(biāo)
  • 點(diǎn)擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:2020-09-01
  • 最后修改日期:2020-09-25
  • 錄用日期:2020-10-21
  • 在線發(fā)布日期: 2021-11-25
  • 出版日期: 2021-11-24