13Cr4Si4、α-Al12(Cr, Fe)3Si2、富Fe相(β-Al5FeSi和π-AlSiMgFe)。添加微量元素Cr后的實驗合金組織均得到細化,隨著Cr含量的增加,α-Al樹枝晶趨于等軸晶轉(zhuǎn)變,共晶組織區(qū)域變窄,富Fe相和共晶Si尺寸變小,在合金共晶組織中形成了Al13Cr4Si4、α-Al12(Cr, Fe)3Si2相。添加Cr元素能夠提高合金的過冷度,這對細化合金組織具有積極作用。當Cr含量為0.3%時,鑄造合金組織細化變質(zhì)效果及其力學性能最好,抗拉強度、伸長率分別為182.88Mpa、3.38%。"/>

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
微量元素Cr對ZL101合金微觀組織和力學性能的影響
作者:
作者單位:

內(nèi)蒙古工業(yè)大學材料科學與工程學院

作者簡介:

通訊作者:

中圖分類號:

基金項目:

內(nèi)蒙古科技計劃項目(201802029)；內(nèi)蒙古自治區(qū)科技重大專項(zdzx2018031)內(nèi)蒙古自治區(qū)研究生科研創(chuàng)新項目(S20210180Z)


Effect of Trace Element Chromium on Microstructure and Mechanical Properties in ZL101 Alloy
Author:
Affiliation:

School of materials science and engineering,Inner Mongolia University of technology

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:

    本文采用真空電磁感應(yīng)熔煉爐制備了ZL101-xCr(x=0、0.1、0.2、0.3、0.5、0.8wt.%)鋁合金。利用OM、XRD、SEM、EDS及TEM等測試方法,表征了不同Cr含量實驗合金微觀組織,并測試其力學性能。結(jié)果表明：實驗合金主要物相包括初晶α-Al、(α-Al+Si)共晶、Al13Cr4Si4、α-Al12(Cr, Fe)3Si2、富Fe相(β-Al5FeSi和π-AlSiMgFe)。添加微量元素Cr后的實驗合金組織均得到細化,隨著Cr含量的增加,α-Al樹枝晶趨于等軸晶轉(zhuǎn)變,共晶組織區(qū)域變窄,富Fe相和共晶Si尺寸變小,在合金共晶組織中形成了Al13Cr4Si4、α-Al12(Cr, Fe)3Si2相。添加Cr元素能夠提高合金的過冷度,這對細化合金組織具有積極作用。當Cr含量為0.3%時,鑄造合金組織細化變質(zhì)效果及其力學性能最好,抗拉強度、伸長率分別為182.88Mpa、3.38%。

    Abstract:

    In this paper, ZL101-xCr (x=0, 0.1, 0.2, 0.3, 0.5, 0.8wt.%) aluminum alloys were prepared by vacuum electromagnetic induction melting furnace. Using OM, XRD, SEM, EDS and TEM, the microstructures of the experimental alloys with different Cr contents were characterized, and their mechanical properties were tested. The results show that the main phases of the experimental alloy include primary α-Al, (α-Al+Si) eutectic, Al13Cr4Si4, α-Al12(Cr, Fe)3Si2, and Fe-rich phases (β-Al5FeSi and π-AlSiMgFe). The microstructure of the experimental alloys after adding trace element Cr is refined. With the increase of Cr content, the α-Al dendrites tend to be equiaxed, the eutectic structure area becomes narrow, and the Fe-rich phase and eutectic Si size become smaller. Al13Cr4Si4 and α-Al12(Cr, Fe)3Si2 phases are formed in the alloy eutectic structure. Adding Cr element can improve the undercooling degree of the alloy, which has a positive effect on refining the alloy structure. When the Cr content is 0.3%, the microstructure refinement and modification effect and mechanical properties of the cast alloy are the best, and the tensile strength and elongation are 182.88Mpa and 3.38%, respectively

    參考文獻
    相似文獻
    引證文獻
引用本文

崔曉明,崔昊,白樸存,劉飛,杜趙新,趙學平.微量元素Cr對ZL101合金微觀組織和力學性能的影響[J].稀有金屬材料與工程,2023,52(8):2811~2818.[Cui Xiaoming, Cui Hao, Bai Pucun, Liu Fei, Du Zhaoxin, Zhao Xueping. Effect of Trace Element Chromium on Microstructure and Mechanical Properties in ZL101 Alloy[J]. Rare Metal Materials and Engineering,2023,52(8):2811~2818.]
DOI：10.12442/j. issn.1002-185X.20220632

復制
文章指標
  • 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:2022-08-03
  • 最后修改日期:2022-08-30
  • 錄用日期:2022-09-13
  • 在線發(fā)布日期: 2023-08-28
  • 出版日期: 2023-08-24