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
基于內(nèi)變量的Ti555211合金熱變形本構(gòu)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)基金資助（51171150）；凝固技術(shù)國(guó)家重點(diǎn)實(shí)驗(yàn)室自主研發(fā)課題（62-TP-2011）


Constitutive Modeling of Near Beta Titanium Alloy Ti555211 Based on the Internal-State-Variable Method during Hot Deformation Process
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Gleeble-3800熱模擬實(shí)驗(yàn)機(jī)，在應(yīng)變速率在0.001~1 s-1以及變形溫度在750~950 ℃范圍內(nèi)對(duì)Ti555211合金進(jìn)行等溫恒應(yīng)變速率壓縮實(shí)驗(yàn)。本工作基于位錯(cuò)變化密度的內(nèi)變量方法建立了Ti555211合金熱變形本構(gòu)模型，通過(guò)真應(yīng)力-真應(yīng)變曲線分析了變形溫度和變形速率對(duì)流變應(yīng)力和微觀組織的影響規(guī)律。結(jié)果表明：所建立的本構(gòu)模型與實(shí)驗(yàn)值的平均相對(duì)誤差為15.25%，相關(guān)系數(shù)為0.94277，從而為制定新型Ti555211近β鈦合金鍛造工藝提供科學(xué)的理論依據(jù)。

    Abstract:

    Isothermal compression tests of Ti555211 titanium alloy has been conducted on a Gleebe-3800 hot-simulator at the strain rate ranging from 0.001 to 1 s-1 and the deformation temperature ranging from 750 to 950 oC. A constitutive model using dislocation density rate as an internal state variable has been proposed for hot working of Ti555211 titanium alloy. According to the isothermal compression test curves, the influence of deformation temperature and stain rate on stress has been investigated. The results show that the correlation coefficient (R) and the average absolute relative error (AARE) for the constitutive model using dislocation density rate as an internal state variable are found to be 0.94277 and 15.25%, respectively, which provide a guide for process optimization and control of near β deformation of Ti555211 titanium alloy.

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

安 震,馮 勇,李金山,劉向宏,杜予晅,樓美琪,劉廣發(fā),韓逢博.基于內(nèi)變量的Ti555211合金熱變形本構(gòu)模型[J].稀有金屬材料與工程,2014,43(8):1902~1907.[An Zhen, Feng Yong, Li Jinshan, Liu Xianghong, Du Yuxuan, Lou Meiqi, Liu Guangfa, Han Fengbo. Constitutive Modeling of Near Beta Titanium Alloy Ti555211 Based on the Internal-State-Variable Method during Hot Deformation Process[J]. Rare Metal Materials and Engineering,2014,43(8):1902~1907.]
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:2013-09-11
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期: 2015-01-04
  • 出版日期: