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鎂合金無(wú)縫管材冷軋成形過(guò)程研究
作者:
作者單位:

太原科技大學(xué) 重型機(jī)械教育部工程研究中心

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)基金資助項(xiàng)目(U1710113)(U1610256),中國(guó)博士后科學(xué)(2017M622903),山西省留學(xué)基金資助項(xiàng)目(2017-081),山西省自然科學(xué)(201601D011051),山西省重點(diǎn)研發(fā)項(xiàng)目(201703D111003),山西省軌道交通裝備制造研究生教育創(chuàng)新中心基地項(xiàng)目,山西省研究生優(yōu)秀創(chuàng)新項(xiàng)目(2017SY077).


Cold Roll Forming Process of AZ31 Magnesium Alloy Seamless Pipe
Author:
Affiliation:

Engineering Research Center Heavy Machinery Ministry of Education,Taiyuan University of Science and Technology

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:

    鎂合金在室溫下塑性較差,導(dǎo)致其在軋制過(guò)程中組織分布不均而引起應(yīng)力差異,因此從鎂合金材料特性角度出發(fā),分析成形過(guò)程中力學(xué)特征及組織演變過(guò)程就顯得至關(guān)重要。基于此,本文通過(guò)實(shí)驗(yàn)建立AZ31鎂合金分段本構(gòu)模型,構(gòu)建包含晶粒拓?fù)浼夹g(shù)的元胞自動(dòng)機(jī)模型。借助二次開(kāi)發(fā)技術(shù),將上述本構(gòu)模型、元胞自動(dòng)機(jī)與有限元軟件結(jié)合起來(lái)進(jìn)行仿真,獲得包含應(yīng)力、應(yīng)變、晶粒大小和分布規(guī)律等預(yù)測(cè)結(jié)果,對(duì)控制皮爾格軋制AZ31鎂合金成形工藝以實(shí)現(xiàn)對(duì)成形和性能的協(xié)調(diào)控制具有一定意義,并通過(guò)實(shí)驗(yàn)對(duì)模擬結(jié)果進(jìn)行驗(yàn)證。

    Abstract:

    Magnesium alloys have poor plasticity at room temperature, which leads to uneven distribution and stress difference of microstructure during rolling. Therefore, it is important to analyze the mechanical characteristics and microstructure evolution from the angle of material properties. Based on this, a piecewise constitutive model of AZ31 magnesium alloy was established by experiments, and a cellular automata model including grain topology technology was constructed. With the aid of secondary development technology, the constitutive model, cellular automata and finite element software were combined to simulate, and the predicted results including stress, strain, grain size and distribution law were obtained. It is of certain significance to control the forming process of AZ31 magnesium alloy rolled by Pilger to realize the coordinated control of forming and properties, and the simulation results were verified by experiments.

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

李偉,楚志兵,王環(huán)珠,薛占元,李玉貴,帥美榮,桂海蓮. AZ31鎂合金無(wú)縫管材冷軋成形過(guò)程研究[J].稀有金屬材料與工程,2020,49(4):1242~1249.[LI Wei, CHU Zhi-bing, WANG Huan-zhu, XUE Zhan-yuan, LI Yu-gui, SHUAI Mei-rong, GUI Hai-lian. Cold Roll Forming Process of AZ31 Magnesium Alloy Seamless Pipe[J]. Rare Metal Materials and Engineering,2020,49(4):1242~1249.]
DOI：10.12442/j. issn.1002-185X.20190042

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:2019-01-10
  • 最后修改日期:2019-02-22
  • 錄用日期:2019-03-15
  • 在線發(fā)布日期: 2020-05-07
  • 出版日期: