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
應(yīng)用加工圖技術(shù)優(yōu)化阻燃鈦合金高溫變形工藝
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:


Optimization of Hot Deformation Parameters of Burn Resistant Titanium Alloy by Using Processing Map
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:

    在熱模擬試驗(yàn)機(jī)上對(duì)鑄態(tài)和擠壓態(tài)組織的阻燃鈦合金（Ti-35V-15Cr-Si-C）進(jìn)行了等溫恒應(yīng)變速率熱壓縮試驗(yàn)，溫度范圍鑄態(tài)為900～1200 ℃、擠壓態(tài)為900～1150 ℃，應(yīng)變速率范圍為10-3～1 s-1，測(cè)試了真應(yīng)力-真應(yīng)變曲線并對(duì)其形成機(jī)制進(jìn)行了分析。基于動(dòng)態(tài)材料模型建立了2種狀態(tài)合金的熱加工圖并進(jìn)行分析。結(jié)果表明：鑄錠開(kāi)坯較優(yōu)的熱加工工藝是擠壓成形；與鑄態(tài)合金相比，擠壓態(tài)合金發(fā)生連續(xù)動(dòng)態(tài)再結(jié)晶的工藝條件范圍明顯擴(kuò)大，并且顯著抑制了局部塑性流動(dòng)失穩(wěn)的發(fā)生；由于高溫下碳化物溶解而產(chǎn)生的合金基體變脆不能通過(guò)工藝方法消除，為了避免表面開(kāi)裂，熱加工應(yīng)盡量選擇變形溫度低于1030 ℃進(jìn)行

    Abstract:

    The hot compressive deformation tests of as-cast and as-extruded burn resistant titanium alloys (Ti-35V-15Cr-Si-C) were performed on the Gleeble-1500 simulator in the temperature range of 900~1200 ℃ for as-cast and 900~1150 ℃ for as-extruded alloy, over the range of strain rate from 10-3 s-1 to 1 s-1. The compressive true stress vs. true strain curves were measured, and the hot processing maps of both as-cast and as-extrude state alloys were constructed based on dynamic materials model (DMM). The results show that: (1) extrusion is the preferable ingot cogging processing technology; (2) compared to the as-cast burn resistant alloy, it is easier for the extruded alloy to generate a continuous recrystallization, and the flow localization instability for as-extruded alloy is restrained. (3) the brittleness due to carbide solution at higher temperature can not be eliminated through the processing treatment. To avoid surface cracking, the appropriate deformation temperature should be lower than 1030 ℃

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

孫歡迎,曹京霞,王 寶,黃 旭,曹春曉.應(yīng)用加工圖技術(shù)優(yōu)化阻燃鈦合金高溫變形工藝[J].稀有金屬材料與工程,2013,42(11):2351~2355.[Sun Huanying, Cao Jingxia, Wang Bao, Huang Xu, Cao Chunxiao. Optimization of Hot Deformation Parameters of Burn Resistant Titanium Alloy by Using Processing Map[J]. Rare Metal Materials and Engineering,2013,42(11):2351~2355.]
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:2012-11-30
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期:
  • 出版日期: