Grain refinement and superplasticity of Inconel 718 processed by Multi-Pass High-Pressure sliding

Yongpeng Tang, Kaveh Edalati, Takahiro Masuda, Yoichi Takizawa, Manabu Yumoto, Zenji Horita

研究成果: Contribution to journalArticle査読

1 被引用数 (Scopus)

抄録

Inconel 718 was successfully processed by multi-pass high-pressure sliding (MP-HPS) for production of ultrafine-grained structures in rods with upsized dimensions. An ultrafine-grained (UFG) structure with an average grain size of ~ 140 nm was developed through rotation of 45°. Tensile testing at 1073 K with an initial strain rate of 2x10-2 s−1 led to superplastic elongations more than 400%. A relation is established between hardness and elongation to failure so that it should be possible to predict the advent of superplasticity only from the hardness measurement.

本文言語英語
論文番号130144
ジャーナルMaterials Letters
300
DOI
出版ステータス出版済み - 10 1 2021

All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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