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

+高級檢索
連續(xù)擠壓工藝生產(chǎn)AZ31鎂合金板材的實驗研究
DOI:
作者:
作者單位:

大連交通大學(xué) 連續(xù)擠壓教育部工程研究中心 遼寧 大連,大連交通大學(xué) 連續(xù)擠壓教育部工程研究中心 遼寧 大連,大連交通大學(xué) 連續(xù)擠壓教育部工程研究中心 遼寧 大連,大連交通大學(xué) 連續(xù)擠壓工程研究中心,大連交通大學(xué) 連續(xù)擠壓教育部工程研究中心 遼寧 大連

作者簡介:

通訊作者:

中圖分類號:

基金項目:

國家自然科學(xué)基金青年基金資助(項目號51401043)


Experimental studies on AZ31 magnesium sheets processed by continuous extrusion
Author:
Affiliation:

Engineering research center of continuous extrusion,Dalian Jiaotong University,Engineering research center of continuous extrusion,Dalian Jiaotong University,Engineering research center of continuous extrusion,Dalian Jiaotong University,,Engineering research center of continuous extrusion,Dalian Jiaotong University

Fund Project:

  • 摘要
    • |
  • 圖/表
    • |
  • 訪問統(tǒng)計
    • |
  • 參考文獻
    • |
  • 相似文獻
    • |
  • 引證文獻
    • |
  • 資源附件
    • |
  • 文章評論
    摘要:

    本文利用連續(xù)擠壓技術(shù)的單、雙桿進料方法試驗生產(chǎn)了尺寸為160mm×8mm, 170mm×4mm和160mm×3mm的AZ31鎂合金板材。分析了單、雙桿進料方式,不同寬厚比和不同擠壓速度等條件對鎂合金板材橫截面微觀組織及力學(xué)性能的影響。討論了應(yīng)用雙桿進料連續(xù)擠壓工藝生產(chǎn)AZ31鎂合金寬薄板的工藝可行性。結(jié)果表明：與單桿進料相比,雙桿進料方式的連續(xù)擠壓AZ31鎂合金板材橫截面微觀組織均勻性較好,板材平均抗拉強度可達到239MPa,平均延伸率為15%。寬厚比由20增加到53,可獲得5μm細化晶粒的鎂合金板材。隨擠壓輪轉(zhuǎn)速提高，板材抗拉強度降低，是由于溫度升高會導(dǎo)致晶粒尺寸變大。

    Abstract:

    In this study, the magnesium sheets in size of 160mm×8mm, 170mm×4mm and 160mm×3mm were processed experimentally by using continuous extrusion method with single and double rod modes. The influence of the process conditions, including feeding modes (single and double rod), width thickness radio and extrusion speed on the forming abilities, the microstructure distributions and the mechanical properties of the AZ31 magnesium sheets were examined. As a result, the microstructure distributions in cross-section of the sheets processed by the double rod mode show more homogeneous, comparing with the sheets processed by the single rod mode. The average tensile strength was up to 239MPa and the average elongation was 15%.The magnesium sheets with refined grains were obtained when the width thickness radio was improved to be 53.The tensile strength of AZ31 sheets decreased with increasing the wheel speed. This is because higher temperature generally leads to larger grain size.

    參考文獻
    相似文獻
    引證文獻
引用本文

郭麗麗,符蓉,裴久楊,楊俊英,宋寶韞.連續(xù)擠壓工藝生產(chǎn)AZ31鎂合金板材的實驗研究[J].稀有金屬材料與工程,2017,46(6):1626~1631.[Guo Lili, Fu Rong, Pei Jiuyang, Yang Junying, Song Baoyun. Experimental studies on AZ31 magnesium sheets processed by continuous extrusion[J]. Rare Metal Materials and Engineering,2017,46(6):1626~1631.]
DOI：[doi]

復(fù)制
文章指標(biāo)
  • 點擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:2016-04-30
  • 最后修改日期:2016-08-26
  • 錄用日期:2016-09-18
  • 在線發(fā)布日期: 2017-11-07
  • 出版日期: