Formation of nanosized martensite particles in stainless steels

M. Shimojo, T. Inamura, T. H. Myeong, K. Takashima, Y. Higo

研究成果: Article査読

20 被引用数 (Scopus)

抄録

Martensitic transformations occur in steels and other metals when the material is quenched or cooled. During the transformation, a metastable phase transforms in an autocatalytic way into a thermodynamically stable phase. Thus, it has been considered to be impossible to control the size of martensite in the order of nanometers. Here, we report the formation and dispersion of nanosized martensite in stainless steels by controlling the dislocation density and temperature. Electron microscopy revealed that martensite particles of approximately 5 nm in diameter were dispersed. Since both work hardening and precipitation hardening are effective in this material, this would be an additional, newly discovered strengthening mechanism for steels.

本文言語English
ページ(範囲)261-265
ページ数5
ジャーナルMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
32
2
DOI
出版ステータスPublished - 2001 2
外部発表はい

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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