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
大變形Ag-10Cu原位纖維復(fù)合材料的應(yīng)變強化效應(yīng)
DOI:
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號:

基金項目:


Strain Strengthening of Ag-10Cu in situ Filamentary Composite Prepared by Heavy Deformation
Author:
Affiliation:

Fund Project:

National Natural Science Foundation of China (50371031); Young and Middle-aged Academic Leaders Program of Yunnan Province (2006py01-42)

  • 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:

    利用熱擠壓加冷拉拔制備Ag-10Cu原位纖維復(fù)合材料。Ag-10Cu合金鑄態(tài)及擠壓態(tài)結(jié)構(gòu)由Ag基體、(Ag+Cu)共晶體和Cu沉淀組成。經(jīng)大變形后變成Ag基體加Cu纖維的兩相組織，合金中的Cu相轉(zhuǎn)變成Cu纖維，其尺寸d隨拉拔應(yīng)變η呈冪指數(shù)關(guān)系變化，且可擬合為d=d0exp(－0.144η)，其中d0是與Cu沉淀初始尺寸有關(guān)的系數(shù)。討論了材料強度的兩個階段變化及其強化機制。所制備的材料可以達到抗拉強度接近1 GPa及電導(dǎo)率大于60% IACS的較優(yōu)性能組合。還討論了中間熱處理的影響

    Abstract:

    Ag-10Cu in situ filamentary composite was prepared by hot extrusion and cold wire drawing. The as-cast and as-extruded Ag-10Cu alloys consist of Ag matrix, (Ag+Cu) eutectic and Cu precipitates which will become a structure of Ag matrix and Cu filaments after heavy deformation. The size of Cu filaments, transformed from coarse Cu precipitates, changes with drawing strain, and their relationship can be expressed as d=doexp(–0.144η). Two-stage strengthening characteristics were obtained and the strengthening mechanism of this composite was discussed. A combination of ultimate tensile strength approaching 1 GPa and electrical conductivity exceeding 60% IACS can be achieved for this composite. The effect of intermediate heat treatment was also discussed

    參考文獻
    相似文獻
    引證文獻
引用本文

王傳軍,寧遠濤,張昆華,管偉明,耿永紅,畢 珺,張吉明.大變形Ag-10Cu原位纖維復(fù)合材料的應(yīng)變強化效應(yīng)[J].稀有金屬材料與工程,2010,39(2):199~203.[Wang Chuanjun, Ning Yuantao, Zhang Kunhua, Guan Weiming, Geng Yonghong, Bi Jun, Zhang Jiming. Strain Strengthening of Ag-10Cu in situ Filamentary Composite Prepared by Heavy Deformation[J]. Rare Metal Materials and Engineering,2010,39(2):199~203.]
DOI：[doi]

復(fù)制
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:2009-08-21
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期:
  • 出版日期: