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

SPD技術(shù)對鋯及鋯合金力學(xué)行為影響研究現(xiàn)狀
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號:

基金項目:

中核集團領(lǐng)創(chuàng)科研項目(K301012021)


Preparation Technology and Progress Analysis in the Global Three Major Titanium Dioxide Process by Hydrochloric Acid
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 圖/表
  • |
  • 訪問統(tǒng)計
  • |
  • 參考文獻
  • |
  • 相似文獻
  • |
  • 引證文獻
  • |
  • 資源附件
  • |
  • 文章評論
    摘要:

    綜述了鋯及鋯合金劇烈塑性變形(SPD)后性能變化的研究進展,系統(tǒng)闡述了鋯及鋯合金經(jīng)劇烈塑性變形后顯微硬度、拉伸/壓縮性能、高低周疲勞性能,重點介紹了SPD技術(shù)在純鋯、Zr-Nb系合金中的應(yīng)用。經(jīng)過劇烈塑性變形后,鋯及鋯合金的抗拉強度及屈服強度均顯著提升,但依據(jù)劇烈塑性成形軌跡、合金成分、第二相分布、熱處理制度不同,其提升程度存在一定的差別。位錯滑移是鋯及鋯合金高周疲勞的主要損傷機制,位錯運動(包括位錯滑移及位錯攀移)是鋯及鋯合金低周疲勞的主要損傷機制。文章最后指出現(xiàn)階段鋯及鋯合金SPD技術(shù)的發(fā)展趨勢及應(yīng)用前景。

    Abstract:

    The research progress of properties of zirconium and zirconium alloys after severe plastic deformation( SPD) was reviewed. The microhardness,tensile/compressive properties,high and low cycle fatigue properties of zirconium and zirconium alloys after severe plastic deformation were systematically described. The application of SPD technology in pure zirconium and Zr-Nb alloys was emphatically introduced. After severe plastic deformation,the tensile strength and yield strength of zirconium and zirconium alloys are significantly improved,but the degree of improvement is different according to different severe plastic forming trajectory,alloy composition,second phase distribution and heat treatment system. Dislocation slip is the main damage mechanism of high cycle fatigue of zirconium and its alloys,and dislocation movement( including dislocation slip and dislocation climb) is the main damage mechanism of low cycle fatigue of zirconium and its alloys. At last,the development trend and application prospect of SPD technology on zirconium and zirconium alloy are pointed out.

    參考文獻
    相似文獻
    引證文獻
引用本文

鄭勇;魏連峰;王晶;李洪玉;鄭云西;齊振佳;白力文;. SPD技術(shù)對鋯及鋯合金力學(xué)行為影響研究現(xiàn)狀[J].鈦工業(yè)進展,2021,38(1):45-48.

復(fù)制
分享
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:
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期: 2021-03-16
  • 出版日期: