63.3Mn14Si9.1Cr9.8C3.8)99.5?xCuxAg0.5 (x=1，2，3，4，5，at%)合金，并對(duì)合金試樣進(jìn)行抗菌時(shí)效處理，研究Cu含量對(duì)合金耐腐蝕性能以及抗菌性能的影響。結(jié)果表明，經(jīng)過(guò)固溶時(shí)效處理后的中熵合金均為fcc結(jié)構(gòu)，隨著Cu含量的提高，fcc1富鐵基體上逐漸析出了富Cu和富Ag的fcc2相。合金在3.5%（質(zhì)量分?jǐn)?shù)）NaCl溶液中的耐腐蝕性能優(yōu)于AISI304。隨Cu含量的增加，腐蝕電流密度先減小而后增加，容抗弧半徑先增大后減小，表明合金的耐腐蝕性能先增強(qiáng)后減弱。合金在大腸桿菌懸浮液中的腐蝕速率呈現(xiàn)出先增大后減小的趨勢(shì)，x=2合金的耐生物腐蝕能力最優(yōu)，而抗菌性能和腐蝕性能存在倒置關(guān)系。富Cu和富Ag的fcc2相能有效提升合金的抗菌性能，x=5合金的抗菌性能最優(yōu)，抗菌率達(dá)到99.94%."/>

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(jí)檢索
Cu含量對(duì)鐵基中熵合金耐腐蝕及抗菌性能的影響
作者:
作者單位:

1.蘭州理工大學(xué) 省部共建有色金屬加工與再利用國(guó)家重點(diǎn)實(shí)驗(yàn)室，甘肅 蘭州 730050;2.蘭州理工大學(xué) 溫州泵閥工程研究院，浙江 溫州 325105;3.蘭州資源環(huán)境職業(yè)技術(shù)大學(xué)，甘肅 蘭州 730123;4.田納西大學(xué) 材料系，美國(guó) 諾克斯維爾 TN 37996

作者簡(jiǎn)介:

通訊作者:

中圖分類號(hào):

基金項(xiàng)目:

Zhejiang Provincial Natural Science Foundation (Grant No. LY23E010002), National Natural Science Foundation of China (Grant No. 52061027), Science and Technology Program Project of Gansu Province (Grant No. 22YF7GA155, No. 22CX8GA109), Lanzhou Youth Science and Technology Talent Innovation Project(2013), Higher Education Research Project of Lanzhou University of Technology (GJ2021A-4)


Effect of Cu Content on Corrosion Resistance and Antibac-terial Properties of Iron-Based Medium Entropy Alloy
Author:
Affiliation:

1.State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China;2.Wenzhou Pump and Valve Engineering Research Institute, Lanzhou University of Technology, Wenzhou 325105, China;3.Lanzhou Resources & Environment Voc-tech University, Lanzhou 730123, China;4.Department of Materials Science and Engineering, University of Tennessee, Knoxville TN 37996, USA

Fund Project:

Zhejiang Provincial Natural Science Foundation (LY23E010002); National Natural Science Foundation of China (52061027); Science and Technology Program Project of Gansu Province (22YF7GA155, 22CX8GA109); Lanzhou Youth Science and Technology Talent Innovation Project (2023-QN-91); Higher Education Research Project of Lanzhou University of Technology (GJ2021A-4)

  • 摘要
    • |
  • 圖/表
    • |
  • 訪問(wèn)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(píng)論
    摘要:

    采用水冷銅坩堝磁懸浮真空熔煉爐制備了(Fe63.3Mn14Si9.1Cr9.8C3.8)99.5?xCuxAg0.5 (x=1，2，3，4，5，at%)合金，并對(duì)合金試樣進(jìn)行抗菌時(shí)效處理，研究Cu含量對(duì)合金耐腐蝕性能以及抗菌性能的影響。結(jié)果表明，經(jīng)過(guò)固溶時(shí)效處理后的中熵合金均為fcc結(jié)構(gòu)，隨著Cu含量的提高，fcc1富鐵基體上逐漸析出了富Cu和富Ag的fcc2相。合金在3.5%（質(zhì)量分?jǐn)?shù)）NaCl溶液中的耐腐蝕性能優(yōu)于AISI304。隨Cu含量的增加，腐蝕電流密度先減小而后增加，容抗弧半徑先增大后減小，表明合金的耐腐蝕性能先增強(qiáng)后減弱。合金在大腸桿菌懸浮液中的腐蝕速率呈現(xiàn)出先增大后減小的趨勢(shì)，x=2合金的耐生物腐蝕能力最優(yōu)，而抗菌性能和腐蝕性能存在倒置關(guān)系。富Cu和富Ag的fcc2相能有效提升合金的抗菌性能，x=5合金的抗菌性能最優(yōu)，抗菌率達(dá)到99.94%.

    Abstract:

    (Fe63.3Mn14Si9.1Cr9.8C3.8)99.5?xCuxAg0.5 (x=1, 2, 3, 4, 5, at%) alloys were prepared by water-cooled copper crucible magnetic levitation vacuum melting furnace. The effects of Cu contents on microstructure, corrosion resistance, and antibacterial performance of the alloys were investigated. The results show that the medium entropy alloys possess fcc phase after solid solution and aging treatment. With the increase in Cu content, the Cu-enriched and Ag-enriched fcc2 phase is precipitated on the fcc1 Fe-rich matrix. The corrosion resistance of the alloys in 3.5wt% NaCl solution is superior to that of AISI304. The corrosion current density first decreases and then increases, and the impedance arc radius first increases and then decreases, indicating an initial enhancement and subsequent weakening of the corrosion resistance as the Cu content increases. Moreover, the corrosion rate of the alloys in Escherichia coli suspension shows a trend of increasing first and then decreasing. When x=2 the alloy exhibits the best corrosion resistance, and there is a trade-off effect between the corrosion resistance and antibacterial performance. The fcc2 phase effectively enhances the antibacterial performance of the alloy, and the alloy of x=5 shows the optimal antibacterial rate of 99.94%.

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

趙燕春,宋海轉(zhuǎn),馬虎文,胡若楠,馮力,段望春,Liaw Peter K.Cu含量對(duì)鐵基中熵合金耐腐蝕及抗菌性能的影響[J].稀有金屬材料與工程,2024,53(7):1817~1825.[Zhao Yanchun, Song Haizhuan, Ma Huwen, Hu Ruonan, Feng Li, Duan Wangchun, K Liaw Peter. Effect of Cu Content on Corrosion Resistance and Antibac-terial Properties of Iron-Based Medium Entropy Alloy[J]. Rare Metal Materials and Engineering,2024,53(7):1817~1825.]
DOI：10.12442/j. issn.1002-185X.20230636

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:2023-10-11
  • 最后修改日期:2023-11-13
  • 錄用日期:2023-11-17
  • 在線發(fā)布日期: 2024-07-16
  • 出版日期: 2024-07-12