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
Effect of Nanocrystalline Surface and Iron-containing Layer Obtained by SMAT on Tribological Properties of 2024 Al Alloy
DOI:
作者:
作者單位:

作者簡(jiǎn)介:

通訊作者:

中圖分類(lèi)號(hào):

基金項(xiàng)目:


Effect of Nanocrystalline Surface and Iron-containing Layer Obtained by SMAT on Tribological Properties of 2024 Al Alloy
Author:
Affiliation:

Fund Project:

National Natural Science Foundation of China (51201008, 51171020); the Fundamental Research Funds for the Central Universities (FRF-TP-12- 166A); Doctoral Fund of Ministry of Education of China (20120006120043)

  • 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:

    采用表面機(jī)械研磨處理技術(shù)，選用陶瓷球和鋼球作為彈射介質(zhì)，在 2024 鋁合金表面分別制備出純凈的納米晶層和含鐵納米晶層。表面機(jī)械研磨處理前后2024鋁合金摩擦磨損性能在載荷為1.5 N的條件下與直徑為 5 mm 的 GCr15 鋼球?qū)δミM(jìn)行了研究。結(jié)果表明，表面機(jī)械研磨處理 30 min 后，陶瓷球處理鋁合金表面納米晶層平均晶粒尺寸達(dá)到 49.2 nm，鋼球處理鋁合金表面納米晶層平均晶粒尺寸細(xì)化到 52.1 nm。此外，采用鋼球作為彈射介質(zhì)進(jìn)行表面機(jī)械研磨處理在納米晶表層引入了厚度約為 5 μm 的含鐵層。在晶粒細(xì)化、硬度增加和含鐵層的潤(rùn)滑作用共同作用下，2024鋁合金的耐磨性能得到顯著改善

    Abstract:

    The pure and Fe-containing nanocrystalline layers were fabricated on the surface of 2024 Al alloy by surface mechanical attrition treatment (SMAT) using ceramic balls and steel balls, respectively. The friction and wear properties of 2024 Al alloy before and after SMAT were investigated by sliding against a GCr15 steel ball of 5 mm in diameter at a load of 1.5 N. The results demonstrate that the surface nanocrystalline layers with average grain sizes of 49.2 and 52.1 nm can be obtained by using ceramic balls and steel balls, respectively, when treated for 30 min. Moreover, a 5 μm thick surface layer containing Fe is also introduced into the Al nanocrystalline surface when treated using steel balls. The wear resistance of 2024 Al alloy is improved due to the combination of grain refinement, increased hardness and lubrication effect of iron-containing layer

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

文 磊,袁 勇,王亞明,金 瑩. Effect of Nanocrystalline Surface and Iron-containing Layer Obtained by SMAT on Tribological Properties of 2024 Al Alloy[J].稀有金屬材料與工程,2015,44(6):1320~1325.[Wen Lei, Yuan Yong, Wang Yaming, Jin Ying. Effect of Nanocrystalline Surface and Iron-containing Layer Obtained by SMAT on Tribological Properties of 2024 Al Alloy[J]. Rare Metal Materials and Engineering,2015,44(6):1320~1325.]
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:2014-07-08
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期: 2016-01-04
  • 出版日期: