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

研究成果: Article査読

抄録

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.

本文言語English
ページ(範囲)151-154
ページ数4
ジャーナルInternational Journal of Materials Research
108
2
DOI
出版ステータスPublished - 2017 2

ASJC Scopus subject areas

  • 凝縮系物理学
  • 物理化学および理論化学
  • 金属および合金
  • 材料化学

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