2Sn混合物的尺寸。除固溶外,燒結(jié)態(tài)Mg-25Sn-xZn中Zn完全轉(zhuǎn)變成MgZn2相。且隨Zn含量的增加,MgZn2相的尺寸逐步增大,Mg晶界和Mg2Sn顆粒相周圍是MgZn2相的擇優(yōu)分布位置。添加6wt% Zn的Mg-25Sn合金具有最優(yōu)的力學(xué)性能,其顯微維氏硬度1.60GPa、屈服強(qiáng)度388MPa、抗壓強(qiáng)度497MPa、斷裂應(yīng)變7.5%。"/>

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
Zn元素對Mg-25Sn合金組織和力學(xué)性能的影響
作者:
作者單位:

大連理工大學(xué) 遼寧省凝固控制與數(shù)字化制備技術(shù)重點(diǎn)實(shí)驗(yàn)室

作者簡介:

通訊作者:

中圖分類號:

基金項(xiàng)目:

國家自然科學(xué)基金(51374047)；江蘇省自然科學(xué)基金(BK20181162)；中央高?；究蒲袠I(yè)務(wù)費(fèi)專項(xiàng)資金(DUT18LAB03)


Effect of Zn on Microstructures and Mechanical Properties of Mg-25Sn Alloys
Author:
Affiliation:

Key Laboratory of Solidification Control and Digital Preparation Technology Liaoning Province,Dalian University of Technology

Fund Project:

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

    以Mg 粉、Sn 粉和Zn 粉為初始原料,采用機(jī)械合金化和熱壓燒結(jié)的方法制備Mg-25Sn-xZn合金。研究了Zn添加量對Mg-25Sn合金顯微組織和性能的影響。結(jié)果表明：Mg-25Sn-xZn體系的機(jī)械合金化過程中,Zn元素不參與合金化反應(yīng),但Zn的引入降低了Mg+Mg2Sn混合物的尺寸。除固溶外,燒結(jié)態(tài)Mg-25Sn-xZn中Zn完全轉(zhuǎn)變成MgZn2相。且隨Zn含量的增加,MgZn2相的尺寸逐步增大,Mg晶界和Mg2Sn顆粒相周圍是MgZn2相的擇優(yōu)分布位置。添加6wt% Zn的Mg-25Sn合金具有最優(yōu)的力學(xué)性能,其顯微維氏硬度1.60GPa、屈服強(qiáng)度388MPa、抗壓強(qiáng)度497MPa、斷裂應(yīng)變7.5%。

    Abstract:

    Mg-25Sn-xZn alloys were prepared by mechanical alloying and hot-press sintering methods using Mg powders, Sn powders and Zn powders as raw materials. The effects of the Zn content on microstructures and mechanical properties of the Mg-25Sn alloys were studied. The results show that Zn didn"t participate with the alloying reaction in the mechanical alloy process of Mg-25Sn-xZn system, but the introduction of Zn reduced the size of Mg+Mg2Sn mixture. The Zn in the sintered Mg-25Sn-xZn was completely transformed into MgZn2 phase except the solution. And with the increase of the Zn content, the size of MgZn2 phase gradually increased. MgZn2 phase was preferentially distributed along Mg grain boundary and around Mg2Sn particle phase. When the Zn addition is 6wt%, the Mg-25Sn alloy exhibited excellent mechanical properties, hardness, yield strength, fracture strength and strain are 1.60GPa, 388MPa, 497MPa and 7.5% respectively.

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

王蓉,房燦峰,徐尊嚴(yán),王蔭洋,仲崇宇. Zn元素對Mg-25Sn合金組織和力學(xué)性能的影響[J].稀有金屬材料與工程,2021,50(3):1032~1036.[Wang Rong, Fang Canfeng, Xu Zunyan, Wang Yinyang, Zhong Chongyu. Effect of Zn on Microstructures and Mechanical Properties of Mg-25Sn Alloys[J]. Rare Metal Materials and Engineering,2021,50(3):1032~1036.]
DOI：10.12442/j. issn.1002-185X.20200332

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:2020-05-16
  • 最后修改日期:2020-06-27
  • 錄用日期:2020-07-01
  • 在線發(fā)布日期: 2021-04-02
  • 出版日期: