The influence of high-energy ball milling and sintering process on the microstructure and mechanical properties of Al-Ni-Y-Co-La alloy

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

Abstract

Al86Ni7Y4.5Co1La1.5 (at.%) alloy powder was produced by argon gas atomization process.After high-energy ball milling, the powder was consolidated and extruded by using vacuum hotpress sintering under different process conditions, sintering temperature, extrusion pressure,sintering time, etc. The microstructure and morphology of the powder and consolidated bulk alloywere examined by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmissionelectron microscopy (TEM). The phase transformation of the powder was investigated bydifferential scanning calorimetry (DSC). Mechanical properties of the consolidated bulk alloy wereexamined. The results showed that as the milling time increase, the volume fraction of amorphousmaterials and the hardness and yield strength of the bulk alloy were obvious improved.

Original languageEnglish
Title of host publicationAdvances in Functional and Electronic Materials
EditorsLianjun Wang, Xiumei Wang, Kefu Yao, Guo Yan
PublisherTrans Tech Publications Ltd
Pages281-285
Number of pages5
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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