Crystallographic restriction in martensite and bainite transformations in steels

Goro Miyamoto, Takeshi Kaneshita, Tadachika Chiba, Tadashi Furuhara

研究成果: Article査読

12 被引用数 (Scopus)

抄録

Attention to lath martensite and bainite in steels has been increasing due to their good mechanimcal properties. Various boundaries bewteen K-S variants contained in those microstructures contribute to their high strength and toughness so that deeper understand of nature of those boundaries is required. EBSD analyses have revealed that different variant grouping tendencies appear depending on composition and transformation temperature, such as variants belonging to the same Bain group, variants sharing the same close-packed plane parallel relationship. Kinematical compatibility (KC) condition can explain variant pairs coupled preferentially in lenticular and thin plate martensite satisfactory. In addition, it is revealed that some of the variant pairs observed in lath martensite and bainite are favorable for the KC condition when double shears are assuemd for lattice invariant shear.

本文言語English
ページ(範囲)339-347
ページ数9
ジャーナルNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
79
7
DOI
出版ステータスPublished - 2015 7 1

ASJC Scopus subject areas

  • 凝縮系物理学
  • 材料力学
  • 金属および合金
  • 材料化学

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