Tensile rate dependency of mechanical properties of inconel 718 nickel-based superalloy around solidus temperature

Shota Ogino, Tsubasa Ohashi, Naoki Kasuya, Makoto Yoshida

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Nickel-based superalloys have been applied to gas turbine and aircraft jet engine parts due to superior high temperature strength and corrosion resistance. However, casting defect such as solidification cracking often occurs. In order to increase productivity of precision casting and various shape casting processes, predicting the occurrence of solidification cracking by using CAE (Computer Aided Engineering) should be essential. Therefore, it is necessary to obtain mechanical properties in the state of solid-liquid coexistence. In the previous reports, high temperature mechanical properties were examined but tensile rate dependency wasn't examined. In this study, high temperature (around solidus temperature) mechanical properties and tensile rate dependency of their alloy were examined by using originally developed tensile test.

Original languageEnglish
Pages (from-to)170-173
Number of pages4
JournalNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume77
Issue number5
DOIs
Publication statusPublished - 2013 May 1

Keywords

  • Hot tear
  • Mechanical property
  • Nickel-based superalhys
  • Semi-solid
  • Stress-strain curve

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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