High-temperature mechanical properties of NaClNa 2 CO 3 salt-mixture removable cores for aluminum die-casting

Katsunari Oikawa, Kazuhiro Sakakibara, Youji Yamada, Koichi Anzai

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The NaClNa 2 CO 3 salt mixture is proposed as a water-soluble core material for aluminum die-casting processes. The mechanical properties and microstructures of NaClNa 2 CO 3 samples prepared by gravity casting were investigated. The salt mixtures had superior properties compared to those of the pure salts. Plastic deformation occurred during compression tests at high temperatures because the eutectic region changed from lamellar to granular. Salt mixtures with NaCl primary phase and eutectic regions were found to be the most suitable core material.

Original languageEnglish
Pages (from-to)19-24
Number of pages6
JournalMaterials Transactions
Volume60
Issue number1
DOIs
Publication statusPublished - 2019 Jan 1

Keywords

  • Compression test
  • High temperature
  • Lamellar structure
  • Mechanical property
  • Removable core
  • Salt mixture
  • Vickers hardness

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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