Relation between martensite morphology and volume change accompanying fcc to bcc martensitic transformation in Fe-Ni-Co alloys

A. Shibata, H. Yonezawa, K. Yabuuchi, S. Morito, T. Furuhara, T. Maki

研究成果: Article査読

42 被引用数 (Scopus)

抄録

The change in morphology and substructure of α′ martensite with a volume change accompanying austenite (fcc) to martensite (bcc) transformation was studied using various Fe-Ni-Co alloys. The volume change accompanying martensitic transformation was decreased by the Invar effect of austenite with Co addition to the Fe-Ni binary alloys. In Fe-28Ni-20Co and Fe-24Ni-30Co (mass%) alloys, small and negative volume changes were established (-0.30% and -0.39%, respectively). With a decrease in volume change, the transition temperature of martensite morphology from lenticular to lath increases. The dislocation densities in martensite and austenite decrease as the volume change approaches zero.

本文言語English
ページ(範囲)241-245
ページ数5
ジャーナルMaterials Science and Engineering A
438-440
SPEC. ISS.
DOI
出版ステータスPublished - 2006 11月 25

ASJC Scopus subject areas

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

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