Inheritance of dislocations and crystallographic texture during martensitic reversion into austenite

Nobuo Nakada, Reiji Fukagawa, Toshihiro Tsuchiyama, Setsuo Takaki, Dirk Ponge, Dierk Raabe

研究成果: ジャーナルへの寄稿記事

18 引用 (Scopus)

抄録

A novel type of heat treatment to control austenite stability by precipitation and dissolution of carbide was applied to a 18%Ni-0.6%C steel. The new method enables to study the inherent characteristics of austenite formed by martensitic reversion. The material selected for this study is a hypereutectoid steel with a large carbon solubility gap depending on the austenitizing temperature. The precipitated carbide immediately dissolves into the austenite matrix again after martensitic reversion in order to restore the Ms and Mf temperatures to their initial values. The crystallographic orientation of each phase was mapped by means of the electron back scattering diffraction (EBSD) method using a field emission scanning electron microscope. A full fcc-bcc-fcc reversible martensitic transformations cycle was observed. As a result of the specific heat treatment, the austenite that was formed by martensitic reversion remains stable at ambient temperature.

元の言語英語
ページ(範囲)1286-1288
ページ数3
ジャーナルisij international
53
発行部数7
DOI
出版物ステータス出版済み - 9 4 2013

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Austenite
Textures
Carbides
Heat treatment
Steel
Martensitic transformations
Field emission
Temperature
Specific heat
Carbon steel
Dissolution
Electron microscopes
Carbon
Solubility
Diffraction
Scattering
Scanning
Electrons

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

これを引用

Inheritance of dislocations and crystallographic texture during martensitic reversion into austenite. / Nakada, Nobuo; Fukagawa, Reiji; Tsuchiyama, Toshihiro; Takaki, Setsuo; Ponge, Dirk; Raabe, Dierk.

:: isij international, 巻 53, 番号 7, 04.09.2013, p. 1286-1288.

研究成果: ジャーナルへの寄稿記事

Nakada, Nobuo ; Fukagawa, Reiji ; Tsuchiyama, Toshihiro ; Takaki, Setsuo ; Ponge, Dirk ; Raabe, Dierk. / Inheritance of dislocations and crystallographic texture during martensitic reversion into austenite. :: isij international. 2013 ; 巻 53, 番号 7. pp. 1286-1288.
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