本文關鍵詞：AZ31鎂合金表面化學氣相沉積鎢涂層工藝及其耐蝕性和耐磨性，由筆耕文化傳播整理發(fā)布。

北京工業(yè)大學研究鎂合金表面化學氣相沉積鎢涂層工藝及其耐蝕性和耐磨性

為提高鎂合金表面耐蝕耐磨性能，北京工業(yè)大學材料科學與工程學院采用化學氣相沉積法在鎂合金表面制備了鎢涂層，并對其工藝進行了研究。

   李思思, 馬捷, 賈平平等利用掃描電鏡、能譜儀等分析技術對鎢涂層成分、組織結構以及微觀形貌進行了表征；利用高溫摩擦磨損試驗機(HT1000)、綜合電化學測試方法對鎢涂層耐磨性能和耐蝕性能進行分析。

  研究結果表明：

1  沉積溫度為440 ℃時可獲得致密均勻、與基體結合良好的鎢涂層；

2  沉積鎢涂層使表面硬度大幅度提高，，表面耐磨性增加，能有效的降低鎂合金表面活性；

3 腐蝕電位相對于鎂合金基體正移了1.21 V，大幅提高了其耐蝕性能。

       To improve the corrosion properties and wear resistance of magnesium alloy surface, tungsten coating was successfully prepared on magnesium alloy surface by chemical vapor deposition (CVD). The composition, microstructure, morphologies of the coatings were studied by scanning electron microscopy (SEM) and energy dispersive spectrometry (EDS). The wear resistance and corrosion properties of these coatings on magnesium alloy surface were analyzed by hightemperature frictionwear tester (HT1000) and potentiodynamic polarization and electrochemical impedance spectroscopy (EIS), respectively. The results show that the tungsten coating has good properties when the temperature is 440 ℃.The sample is compact and uniform, and binds well with the substrate. The deposing improves the surface hardness and wears resistance. At the same time, the surface activity is reduced, and the corrosion potential shifts 1.21 V than that of the magnesium alloy matrix, which significantly  

原文：李思思, 馬捷, 賈平平, 魏建忠.AZ31鎂合金表面化學氣相沉積鎢涂層工藝及其耐蝕性和耐磨性[J].中國表面工程,2014,27(1):40-44 

  本文關鍵詞：AZ31鎂合金表面化學氣相沉積鎢涂層工藝及其耐蝕性和耐磨性，由筆耕文化傳播整理發(fā)布。