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
AZ31鎂合金熱軋變形的動(dòng)態(tài)再結(jié)晶機(jī)制
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:

總裝“十一五”預(yù)研項(xiàng)目及教育部科學(xué)技術(shù)重點(diǎn)研究項(xiàng)目（106055）


DRX Mechanism of AZ31 Magnesium Alloy during Hot Rolling
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:

    在軋制溫度603~703 K、軋制壓下量20%~40%、應(yīng)變速率4~16 s-1下對(duì)AZ31鎂合金進(jìn)行軋制變形，研究軋制壓下量、應(yīng)變速率和變形溫度對(duì)AZ31鎂合金變形組織的影響，分析了鎂合金的動(dòng)態(tài)再結(jié)晶機(jī)制。結(jié)果表明：應(yīng)變速率和變形溫度不僅影響動(dòng)態(tài)再結(jié)晶進(jìn)行的程度，而且能夠改變?cè)俳Y(jié)晶的方式或形核機(jī)制。當(dāng)軋制應(yīng)變速率= 13.9 s-1，變形溫度T=603 K時(shí)，再結(jié)晶方式為孿生動(dòng)態(tài)再結(jié)晶；變形溫度升高到703 K時(shí)，沿晶界有鏈狀新晶粒出現(xiàn)。當(dāng)變形溫度T= 673 K，應(yīng)變速率= 11.35 s-1時(shí)，再結(jié)晶方式以孿生動(dòng)態(tài)再結(jié)晶為主；應(yīng)變速率降低到= 4 s-1時(shí)，再結(jié)晶方式以旋轉(zhuǎn)動(dòng)態(tài)再結(jié)晶為主。

    Abstract:

    AZ31 Mg alloy was rolled at the temperature ranging from 603 K to 703 K with reduction from 20% to 40% and strain rate from 4 s-1 to 16 s-1. The effect of reduction per pass, strain rate and rolling temperature on the microstructure of the deformed Mg alloy was studied. The dynamic recrystallization (DRX) mechanism of AZ31 Mg alloy during hot rolling was investigated. The results demonstrate that the strain rate and the temperature not only affect the extent of DRX, but also change the mode of DRX or nucleation mechanism. When the strain rate is = 13.9 s-1, the DRX mode is twinning-induced DRX at T=603 K; but there appear some new chain-like grains along the original grain boundaries at T=703 K. When the temperature is T= 673 K, DRX is mainly twinning-induced DRX at the strain rate = 11.35 s-1, while with the strain rate decreasing to = 4 s-1, the DRX mode turns into rotation DRX.

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

付雪松,陳國(guó)清,王中奇,周文龍. AZ31鎂合金熱軋變形的動(dòng)態(tài)再結(jié)晶機(jī)制[J].稀有金屬材料與工程,2011,40(8):1473~1477.[Fu Xuesong, Chen Guoqing, Wang Zhongqi, Zhou Wenlong. DRX Mechanism of AZ31 Magnesium Alloy during Hot Rolling[J]. Rare Metal Materials and Engineering,2011,40(8):1473~1477.]
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:2010-08-20
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期:
  • 出版日期: