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
電子束蒸發(fā)制備高熵合金涂層AlxFeCoCrNiCu(x = 0.25, 0.5 and 1.0)的微觀結(jié)構(gòu)和耐腐蝕性能研究
DOI:
作者:
作者單位:

理學(xué)院,,理學(xué)院,理學(xué)院,理學(xué)院

作者簡介:

通訊作者:

中圖分類號:

基金項目:

科技部重大支撐項目


Microstructure and corrosion properties of AlxFeCoCrNiCu(x = 0.25, 0.5 and 1.0) thin coatings on steel substrates deposited by electron beam evaporation
Author:
Affiliation:

School of Science,Dalian Ocean University,Chemical Sciences and Engineering Division,Argonne National Laboratory,IL ,USA,School of Science,Dalian Ocean University,School of Science,Dalian Ocean University,School of Science,Dalian Ocean University

Fund Project:

National Key Technology Research and Development Program of the Ministry of Science and Technology of China

  • 摘要
    • |
  • 圖/表
    • |
  • 訪問統(tǒng)計
    • |
  • 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:

    實驗采用電子束蒸發(fā)法在鋼基體表面制備高熵合金涂層，探究不同Al 元素對微觀結(jié)構(gòu)、表面形貌和電化學(xué)性能的影響。涂層表面的X射線、電子探針和原子力顯微鏡實驗結(jié)果表明，不同成分的合金涂層均呈典型的樹枝晶結(jié)構(gòu)，組織中仍保持原有的化學(xué)組成。涂層表面平整分布均勻，膜層致密。在0.5 mol/L H2SO4 溶液和 1 mol/L NaCl 溶液中，高熵合金的寬鈍化區(qū)大于700mV，具有較大的腐蝕電勢-129mV和較小的腐蝕電流密度約2.2×10-6 A/cm2，Al0.5FeCoCrNiCu 涂層的耐蝕性最佳。

    Abstract:

    High entropy alloy (HEA) thin coatings have been deposited on steel substrate of a mixed alloy power made of high purity elemental aluminium, cobalt, chromium, copper, iron and nickel by electron beam evaporation and effect of the Al content of the coating on its structural, surface morphology and electrical properties were investigated. The results of X-ray diffraction (XRD) showed that coatings were typical dendrite and interdendrite structures with different aluminum contents. The coatings’ surface chemistry components were basically similar composition as originally designed alloys by electron probe micro-analyzer (EPMA). Atomic force microscopy (AFM) indicated that modified the surface of all coatings were very smooth and uniform. HEA coatings exhibited wide passive regions, which extended ＞700 mV in aqueous solutions of H2SO4 and NaCl. A large corrosion potential (-129 mV) and a small corrosion current density (≈2.2×10-6 A/cm2) clearly revealed that the corrosion resistance of the Al0.5FeCoCrNiCu coating was superior to that of the coatings.

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

牛雪蓮,Jellinek Julius,周丹,楊桂娟,于游.電子束蒸發(fā)制備高熵合金涂層AlxFeCoCrNiCu(x = 0.25, 0.5 and 1.0)的微觀結(jié)構(gòu)和耐腐蝕性能研究[J].稀有金屬材料與工程,2017,46(12):3621~3625.[Niu Xuelian, Jellinek Julius, Zhou Dan, Yang Guijuan, Yu You. Microstructure and corrosion properties of AlxFeCoCrNiCu(x = 0.25, 0.5 and 1.0) thin coatings on steel substrates deposited by electron beam evaporation[J]. Rare Metal Materials and Engineering,2017,46(12):3621~3625.]
DOI：[doi]

復(fù)制
文章指標(biāo)
  • 點擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:2016-10-22
  • 最后修改日期:2016-12-27
  • 錄用日期:2017-01-06
  • 在線發(fā)布日期: 2018-01-04
  • 出版日期: