Hot deformation behavior of Ti-6Al-4V alloy with α' martensite starting microstructure

Hiroaki Matsumoto, Bin Liu, Sang Hak Lee, Yunping Li, Kazuhisa Sato, Yoshiki Ono, Akihiko Chiba

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

Hot deformation behavior and microstructural evolution of Ti-6A1-4V alloy in case of α' martensite starting microstructure were examined by comparing the case in equilibrium (α+β) starting microstructure. Compression test was carried out at 1173 K and 1273 K at strain rates of 0.001s -1 and 1s -1. In compression test in temperature region of (α+β), equiaxed grained structure is exhibited for both starting microstructures of α' martensite and equilibrium (α+β) after compression test. Then, distortion-less ultrafine grained microstructure is obtained in case of α' martensite starting microstructure after hot compression at condition of 1173 K-1s -1. While, the lamellar microstructure consisting of α phase and β phase is obtained after compression at 1273 K, which is above the β-transus of 1268 K, for both the cases of α' starting microstructure and as-received (α+β) starting microstructure. These results indicate that hot deformation behavior in the cases of α' martensite- and (α+β) starting microstructure is different especially at the temperature (1173 K) which is below the β-transus.

本文言語English
ホスト出版物のタイトルTMS 2012 - 141st Annual Meeting and Exhibition, Supplemental Proceedings
ページ873-876
ページ数4
出版ステータスPublished - 2012 5 14
イベント141st Annual Meeting and Exhibition, TMS 2012 - Orlando, FL, United States
継続期間: 2012 3 112012 3 15

出版物シリーズ

名前TMS Annual Meeting
2

Other

Other141st Annual Meeting and Exhibition, TMS 2012
国/地域United States
CityOrlando, FL
Period12/3/1112/3/15

ASJC Scopus subject areas

  • 凝縮系物理学
  • 材料力学
  • 金属および合金

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