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
燒結(jié)釹鐵硼電鍍鋅鐵合金工藝與耐蝕性能
DOI:
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號:

基金項(xiàng)目:

國家科技支撐計(jì)劃（2012BAE02B01）


Technology and Corrosion Resistance of Electrodeposited Zn-Fe Alloys onto Nd-Fe-B Sintered Magnets
Author:
Affiliation:

Fund Project:

  • 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:

    采用弱酸性氯化物鍍液在釹鐵硼基體上制備了高耐蝕性的鋅鐵合金鍍層，討論主要工藝參數(shù)對鍍層鐵含量的影響，優(yōu)化工藝條件。采用鹽霧試驗(yàn)（NSS）、SEM和電化學(xué)方法研究鍍層的耐蝕性能和耐蝕機(jī)理。結(jié)果表明，優(yōu)化工藝條件后合金鍍層含鐵質(zhì)量分?jǐn)?shù)為0.92%，鈍化后在質(zhì)量分?jǐn)?shù)3.5%的NaCl溶液中出白銹時間達(dá)到196 h。合金鍍層對釹鐵硼基體起到陽極保護(hù)的作用，鍍層結(jié)晶致密，填補(bǔ)了釹鐵硼基體的固有缺陷，同時又為獲得致密的鈍化膜創(chuàng)造了條件，減少了鍍層表面的缺陷，使鍍層整體具有極高的電阻，提高了其耐蝕性能。

    Abstract:

    High corrosion resistance Zn-Fe alloy coatings were electroplated onto NdFeB sintered magnet from a weak acid chloride solution. The influences of the main electroplating technological parameters on Fe content in the coating were investigated to optimize the process conditions. Meanwhile, the corrosion resistance and its mechanism were investigated by NSS, SEM and electrochemical tests. The result shows that the optimized Zn-Fe alloy (Fe content 0.92%) coated NdFeB can stand for 196 h against neutral 3.5wt% NaCl salt spray without any white rust. The function of the coating for NdFeB substrate is anodic protection. The coating with dense crystal can fill intrinsic defects of NdFeB substrate and provide favorable conditions for getting compact passivation film. The better corrosion resistance is attributed to the less surface defects and high electric resistance.

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

李 拔,王成彪,王向東,陳小平,彭 楠.燒結(jié)釹鐵硼電鍍鋅鐵合金工藝與耐蝕性能[J].稀有金屬材料與工程,2015,44(1):174~178.[Li Ba, Wang Chengbiao, Wang Xiangdong, Chen Xiaoping, Peng Nan. Technology and Corrosion Resistance of Electrodeposited Zn-Fe Alloys onto Nd-Fe-B Sintered Magnets[J]. Rare Metal Materials and Engineering,2015,44(1):174~178.]
DOI：[doi]

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:2014-01-22
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期: 2015-05-22
  • 出版日期: