Influence of Cu and Mg addition on age-related deterioration in strength and creep behavior of Zn-12Al die casting alloys

Nobufumi Ueshima, Xuantong Liu, Hirokazu Utsumi, Takashi Chiyokubo, Katsuhiko Horio, Katsunari Oikawa

Research output: Contribution to journalArticlepeer-review

Abstract

The influence of the chemical composition of Zn-12AlyCu- xMg (y = 1, 5; x = 0.05- 1.4 mass%) die casting alloys on age-related deterioration in mechanical strength and creep behavior was investigated. Tensile tests were performed after aging at room temperature for 1 day and at 100 8C for 1 week. Creep tests were carried out under tensile stresses of 25, 50 and 100 MPa at 100, 130 and 160 8C. Cu addition suppressed age-related deterioration of proof stress by suppressing the coarsening of the eutectic structure during the aging. Creep resistance was improved by the Mg addition, whereas the Cu addition has a deleterious effect on creep resistance. The results show that the age-related deterioration of Zn-12Al alloys can be improved without sacrificing creep resistance by the complex addition of Cu and Mg.

Original languageEnglish
Pages (from-to)151-154
Number of pages4
JournalInternational Journal of Materials Research
Volume108
Issue number2
DOIs
Publication statusPublished - 2017 Feb

Keywords

  • Age-related deterioration
  • Creep strain
  • Die casting
  • Tensile strength
  • Zn-alloy

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Influence of Cu and Mg addition on age-related deterioration in strength and creep behavior of Zn-12Al die casting alloys'. Together they form a unique fingerprint.

Cite this