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
新型Cr-Ni-Mo和Cr-Ni-Co堆焊合金空蝕性能
DOI:
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號:

基金項目:

國家重大基礎(chǔ)研究“973”計劃子項（2008CB717802）；校高級人才基金（09JDG003）；江蘇省自然科學(xué)基金（BK2008224）


Cavitation Erosion Resistance of Novel Cr-Ni-Mo and Cr-Ni-Co Overlaying Alloys
Author:
Affiliation:

Fund Project:

  • 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:

    采用鎢極氬弧焊（TIG）將新型Cr-Ni-Mo和Cr-Ni-Co合金堆焊于304不銹鋼表面進(jìn)行空蝕試驗(yàn)，通過失重比較不同合金的抗空蝕性能。采用掃描電鏡（SEM）、X射線衍射（XRD）儀和顯微硬度計對合金層進(jìn)行分析。結(jié)果表明：Cr-Ni-Mo和Cr-Ni-Co合金的耐空蝕性能均優(yōu)越于304不銹鋼，其中Cr-Ni-Co優(yōu)于Cr-Ni-Mo；空蝕破壞優(yōu)先出現(xiàn)在堆焊層的晶界處；Cr-Ni-Co合金在空蝕過程中發(fā)生了因奧氏體向馬氏體的轉(zhuǎn)變，有利于能量吸收，延緩了空蝕的進(jìn)行，提高其耐空蝕性能；堆焊合金的抗空蝕能力與合金本身的硬度和加工硬化能力有關(guān)。

    Abstract:

    New type Cr-Ni-Mo and Cr-Ni-Co overlaying alloys were prepared by argon tungsten-arc welding (TIG) on 304 stainless steel, and tested by cavitation vibrating device. The cavitation erosion resistance of alloys was compared through the analysis of mass loss. The alloy layer was analyzed by scanning electron microscopy (SEM), X-ray diffractometer (XRD) and microhardness tester. Results indicate that the cavitation erosion resistance of Cr-Ni-Mo and Cr-Ni-Co overlaying alloys is better than that of 304 stainless steel, and the resistance of Cr-Ni-Co is better than Cr-Ni-Mo. In the process of cavitation the damage is preferred to appear in grain boundary. Phase transformation from austenite to martensite happens in the cavitation process of Cr-Ni-Co alloy, and it is helpful to absorb the energy and delay the process of cavitation erosion, and enhance the cavitation erosion resistance effectively. The cavitation erosion resistance of overlaying alloys is related to hardness and work hardening ability.

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

徐桂芳,秦敏明,雷玉成,陳希章,李 濤.新型Cr-Ni-Mo和Cr-Ni-Co堆焊合金空蝕性能[J].稀有金屬材料與工程,2012,41(9):1555~1558.[Xu Guifang, Qin Minming, Lei Yucheng, Chen Xizhang, Li Tao. Cavitation Erosion Resistance of Novel Cr-Ni-Mo and Cr-Ni-Co Overlaying Alloys[J]. Rare Metal Materials and Engineering,2012,41(9):1555~1558.]
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:2011-09-30
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期:
  • 出版日期: