Static Recrystallization Behavior of Co-Ni-Cr-Mo Superalloy After Cold Rolling and Subsequent Heat Treatment

Takuma Otomo, Shingo Kurosu, Yunping Li, Hiroaki Matsumoto, Shigeo Sato, Yuichiro Koizumi, Kazuaki Wagatsuma, Akihiko Chiba

研究成果: Chapter

抄録

The recrystallization behavior of Co-33Ni-20Cr-10Mo (CNCM) superalloy due to heat treatment after cold rolling was studied. The alloy CNCM was cold-rolled up to 90% reduction. The deformed alloy was heat treated at 700 and 800°C. Microstructural evolution of the alloy was characterized by means of TEM, HRTEM, XRD and EBSD. The Goss <001> texture was dominantly formed after conventional cold rolling. The microstructure was refined after the cold rolling by the reduction higher than 70%. It is suggested that the refined structure was formed due to the strain induced grain subdivision during cold rolling. The average grain size after the recrystallization was submicron meter and the texture did not change after the recrystallization. It is indicated that the CNCM exhibits the continuous recrystallization behavior.

本文言語English
ホスト出版物のタイトルSupplemental Proceedings
ホスト出版物のサブタイトルGeneral Paper Selections
出版社John Wiley and Sons Inc.
ページ479-483
ページ数5
3
ISBN(電子版)9781118062173
ISBN(印刷版)9781118029473
DOI
出版ステータスPublished - 2011 5 3

ASJC Scopus subject areas

  • 工学(全般)
  • 材料科学(全般)

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