Microstructure and mechanical properties of a multi-modal Al alloy withhigh strength

  • Xiaoning Hao*
  • , Ruixiao Zheng
  • , Lirong Hao
  • , Han Yang
  • , Chaoli Ma
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Nanocrystalline (NC) Al alloy powder was fabricated by milling 2024 Al alloy powder andFe-based metallic glass (FMG) particles. The NC Al alloy powder was consolidated into bulk sampleby adding a part of atomized coarse-grained (CG) 2024 alloy powder. The microstructure andmechanical properties of powder and consolidated bulk materials were examined by X-RayDiffraction (XRD), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy(TEM) and mechanical test. It revealed that the FMG particles were uniformly distributed in the NCaluminum alloy powder. In the consolidation process, the grain size increased, and Al2CuMg phaseprecipitated. The multi-modal Al alloy by consolidation of FMG particles, NC and CG powder,exhibited higher yield strength up to 517 MPa and better plasticity in comparison to the sampleswithout CG powder.

Original languageEnglish
Title of host publicationAdvances in Functional and Electronic Materials
EditorsLianjun Wang, Xiumei Wang, Kefu Yao, Guo Yan
PublisherTrans Tech Publications Ltd
Pages286-292
Number of pages7
ISBN (Print)9783037856079
DOIs
StatePublished - 2013
EventChinese Materials Congress 2012, CMC 2012 - Taiyuan, China
Duration: 13 Jul 201218 Jul 2012

Publication series

NameMaterials Science Forum
Volume745-746
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

ConferenceChinese Materials Congress 2012, CMC 2012
Country/TerritoryChina
CityTaiyuan
Period13/07/1218/07/12

Keywords

  • Al alloy
  • High energy ball milling
  • Multi-modal
  • Nanocrystalline

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