Simultaneous achievement of high thermal conductivity, high strength and formability in Mg-Zn-Ca-Zr sheet alloy

Z. H. Li, T. T. Sasaki, T. Shiroyama, A. Miura, K. Uchida, K. Hono

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Lightweight magnesium alloys with good thermal conductance are in demand for structural components in portable devices. This work presents a strategy to achieve excellent thermal conductivity, room temperature (RT) formability and high strength in magnesium sheet alloys. We found that a Mg-1.6Zn-0.5Ca-0.4Zr alloy shows a substantial increase in thermal conductivity to over 130 W/(m·K) due to the reduced supersaturation of solute atoms in the matrix by the precipitation of Guinier-Preston (G.P.) zones while exhibiting excellent RT formability with a large Index Erichsen value of 8.1 mm, and a high yield strength of 227 MPa by peak aging treatment.

Original languageEnglish
Pages (from-to)335-340
Number of pages6
JournalMaterials Research Letters
Volume8
Issue number9
DOIs
Publication statusPublished - 2020 Sep 1
Externally publishedYes

Keywords

  • Magnesium alloy
  • atom probe
  • precipitation
  • strength
  • thermal conductivity

ASJC Scopus subject areas

  • Materials Science(all)

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