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
TC4鈦合金攪拌摩擦焊接接頭組織轉(zhuǎn)變特征
DOI:
作者:
作者單位:

作者簡(jiǎn)介:

通訊作者:

中圖分類號(hào):

基金項(xiàng)目:

國(guó)家自然科學(xué)基金 (51074119)；西安市科技計(jì)劃項(xiàng)目 (CXY1124(4))；陜西省教育廳產(chǎn)業(yè)化項(xiàng)目 (2012JC14)；中國(guó)博士后科學(xué)基金 (212M511981)


Microstructure Transformation Characteristic of Friction Stir Welded Joint
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(píng)論
    摘要:

    采用攪拌摩擦焊接技術(shù) (friction stir welding, FSW) 分別在空氣和強(qiáng)制冷卻條件下對(duì)TC4鈦合金板進(jìn)行了連接，利用OM和TEM技術(shù)研究了焊接接頭不同區(qū)域的微觀組織轉(zhuǎn)變特征。結(jié)果表明，F(xiàn)SW接頭分為攪拌區(qū)、熱機(jī)械影響區(qū)和母材區(qū)，各個(gè)區(qū)域經(jīng)歷了不同的熱循環(huán)和塑性變形，呈現(xiàn)出不同的微觀組織特征。母材區(qū)為熱軋退火后的初生α和β雙相組織?？諝鈼l件下，攪拌區(qū)為α+β片層結(jié)構(gòu)，組織轉(zhuǎn)變主要為β相轉(zhuǎn)變?yōu)槠瑢应?β兩相，熱機(jī)械影響區(qū)為等軸晶α和α+β片層的雙態(tài)組織，組織轉(zhuǎn)變受動(dòng)態(tài)再結(jié)晶和相變共同作用。強(qiáng)制冷卻條件下，攪拌區(qū)為針狀馬氏體結(jié)構(gòu)，組織轉(zhuǎn)變主要為馬氏體相變

    Abstract:

    TC4 titanium alloy plate was jointed by friction stir welding in air and forced cooling condition separately, and microstructure transformation characteristics in different zones of the joint were investigated by OM and TEM. The result shows that the joint consists of stir zone, thermo-mechanically affected zone and base material, and they have different microstructure characteristics as a result of different thermal cycle and plastic deformation in different zones. Base material annealed after heat rolling is characterized by primary α and β phase. Stir zone is fully lamellar α+β structure, which is mainly controlled by phase transformation from β monophase to lamellar α+β phase in air. Thermo-mechanically affected zone exhibits bimodal microstructure of equiaxed α grain and α+β lamellar microstructure. Its transformation characteristic is dynamic recrystallization and phase transformation. Stir zone is characterized by acicular martensite in forced cooling condition, which is mainly controlled by martensite transformation

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

王 文,李 瑤,王慶娟,王快社,海敏娜. TC4鈦合金攪拌摩擦焊接接頭組織轉(zhuǎn)變特征[J].稀有金屬材料與工程,2014,43(5):1143~1147.[Wang Wen, Li Yao, Wang Qingjuan, Wang Kuaishe, Hai Minna. Microstructure Transformation Characteristic of Friction Stir Welded Joint[J]. Rare Metal Materials and Engineering,2014,43(5):1143~1147.]
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:2013-05-20
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期: 2014-10-13
  • 出版日期: