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
690合金高溫變形行為與動(dòng)態(tài)再結(jié)晶模型
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(50831008)


Deformation Behavior and Dynamic Recrystallization Model for 690 Alloy
Author:
Affiliation:

Fund Project:

  • 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:

    利用物理模擬實(shí)驗(yàn)方法對(duì)690合金進(jìn)行恒溫恒速壓縮實(shí)驗(yàn)，變形溫度范圍為1050~1250 ℃，應(yīng)變速率分別為0.1, 1、5, 10 s-1，獲得了合金的流變應(yīng)力數(shù)據(jù)，并對(duì)合金變形后的組織特征進(jìn)行了分析。建立了690合金高溫?zé)嶙冃蔚谋緲?gòu)方程和動(dòng)態(tài)再結(jié)晶模型。結(jié)果表明： 690合金高溫變形時(shí)的流變行為可用Zener-Hollomon參數(shù)的雙曲正弦函數(shù)來(lái)描述，所建立流變應(yīng)力本構(gòu)模型的預(yù)測(cè)值與實(shí)驗(yàn)值吻合較好，建立了690合金的動(dòng)態(tài)再結(jié)晶模型，為熱擠壓過(guò)程中的組織控制提供理論依據(jù)

    Abstract:

    The flow stress behaviors and microstructure characteristics of 690 alloy were investigated by isothermal compression tests in the temperature range of 1050-1200 °C and strain rate range of 0.1-10 s-1 on Gleeble 1500 thermo-simulation machine. The flow stress constitutive equation and dynamic recrystallization model of 690 alloy during hot compression was established. The results show that the flow stress can be represented by a Zenner-Hollomon parameter in the hyperbolic sine type equation. The flow stress of 690 alloy predicted by the proposed models well agrees with experimental results. Therefore, the proposed model can provide the references for the microstructure control during hot extrusion process

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

楊 亮,董建新,張麥倉(cāng).690合金高溫變形行為與動(dòng)態(tài)再結(jié)晶模型[J].稀有金屬材料與工程,2012,41(4):727~732.[Yang Liang, Dong Jianxin, Zhang Maicang. Deformation Behavior and Dynamic Recrystallization Model for 690 Alloy[J]. Rare Metal Materials and Engineering,2012,41(4):727~732.]
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:2011-04-08
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期:
  • 出版日期: