Two-step aging behavior of solution treated Al-7-10mass%Si-0.3mass%Mg alloys

Tomoya Ozasa, Shota Komura, Seiji Saikawa, Kenji Matsuda, Susumu Ikeno

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

Abstract

Two-step aging behavior of solution treated Al-7%Si-0.3%Mg and Al-10mass%Si-0.3mass%Mg alloys were investigated by micro-vickers hardness measurement and optical microscopy. The hardness of Al-10%Si-0.3%Mg alloy after the solution treatment was higher than Al-7%Si-0.3%Mg alloy one. In this reason, it was considered due to the increasing Si contents 7 to 10%. In the both alloys, the peak hardness of final aging stage after pre-aged at 423K in under aging region was higher than pre-aged at room temperature for 45s. The tendencies were estimated due to the influence of precipitate phases, such as clusters and G.P. zones during pre-aging region.

Original languageEnglish
Title of host publication72nd World Foundry Congress, WFC 2016
PublisherThe WFO (The World Foundry Organization Ltd)
Pages409-410
Number of pages2
ISBN (Electronic)9781510833128
StatePublished - 2016
Event72nd World Foundry Congress, WFC 2016 - Nagoya, Japan
Duration: 2016/05/212016/05/25

Publication series

Name72nd World Foundry Congress, WFC 2016

Conference

Conference72nd World Foundry Congress, WFC 2016
Country/TerritoryJapan
CityNagoya
Period2016/05/212016/05/25

Keywords

  • Al-Si-Mg alloy
  • Casting
  • Pre-aging
  • Solution treatment
  • Two-step aging

ASJC Scopus subject areas

  • Materials Chemistry
  • Metals and Alloys

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