+高级检索
电弧增材制造(WAAM)Al-7Si-0.6Mg-xFe组织与性能的研究
作者:
作者单位:

1.东北大学;2.内蒙古金属材料研究所;3.抚顺东工冶金材料技术有限公司

作者简介:

通讯作者:

中图分类号:

基金项目:


Investigation on Microstructure and Properties of Al-7Si-0.6Mg-xFe Alloy by Wire Arc Additive Manufacturing (WAAM)
Author:
Affiliation:

Northeastern University

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    本文研究了Fe含量对WAAM Al-7Si-0.6Mg合金组织与性能的影响,并观察了合金中富Fe相形貌和分布。结果表明,WAAM成形试样中富Fe相为细小针状,为亚稳态镁硅相和π-Fe相的混合相。经T6热处理后,富Fe相中Mg2Si脱溶而形成π-Fe相。随着Fe含量的增加,合金中的富Fe相的尺寸增大、数量增多。Fe含量在较小的范围内变化即可对WAAM成形合金的延伸率产生较大影响,而对强度作用不明显,当Fe含量由0.11%增加到0.18%,合金的断裂延伸率降低了47.1%。

    Abstract:

    The effect of Fe additions on the structure and properties of Al-7Si-0.6Mg alloy by wire arc additive manufacturing (WAAM) was studied and the morphology and distribution of Fe-rich phase in the alloy were observed. The results show that the fine acicular Fe-rich phase in as-deposition alloys is a mixture of metastable Mg-Si phase and π-Fe phase. After heat treatment (T6), Mg2Si dissolves from Fe-rich phase and forms π-Fe phase. With the increase of Fe additions, the size and quantity of Fe-rich phase in the alloy increase. The change of Fe-content in a small range can have a great effect on the elongation of WAAM alloy (T6), but has no obvious effect on strength. With the additions of Fe increases from 0.11% to 0.18%, the fracture elongation of the alloy decreases by 47.1%.

    参考文献
    相似文献
    引证文献
引用本文

李承德,顾惠敏,王 伟,王 帅,任玲玲,翟玉春,王振飚,明 珠.电弧增材制造(WAAM)Al-7Si-0.6Mg-xFe组织与性能的研究[J].稀有金属材料与工程,2020,49(6):1860~1866.[Chengde Li, Huimin Gu, Wei Wang, Shuai Wang, Lingling Ren, Yuchun Zhai, Zhenbiao Wang, Zhu Ming. Investigation on Microstructure and Properties of Al-7Si-0.6Mg-xFe Alloy by Wire Arc Additive Manufacturing (WAAM)[J]. Rare Metal Materials and Engineering,2020,49(6):1860~1866.]
DOI:10.12442/j. issn.1002-185X. E20190106

复制
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2019-11-08
  • 最后修改日期:2020-04-17
  • 录用日期:2019-11-19
  • 在线发布日期: 2020-07-09
  • 出版日期: