continuous cooling transformation

Japanese: continuous cooling transformation(英語表記)continuouscoolingtransformation
continuous cooling transformation

…Austempering is a method of austenitizing steel, quenching it between Ar′ and Ar″, and holding it at that temperature until the austenite transformation is complete to cause the bainite transformation. Marquenching is a type of interrupted quenching, in which the steel is quenched in a hot bath just above the M s point, held at an isothermal temperature until the sample becomes uniform, and then air-cooled to gradually cause the martensite transformation. (2) Continuous cooling transformation curve Also called CCT (continuous cooling transformation) curve. In actual heat treatment, austenite does not transform isothermally, but steel is cooled continuously from the austenite state.…

*Some of the terminology used in reference to "continuous cooling transformation" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…オーステンパーaustemperingとは鋼をオーステナイト化し,Ar′とAr″の間に急冷して,オーステナイトが変態完了するまでその温度で等温保持してベイナイト変態させる方法で,マルクエンチmarquenchingとは一種の中断焼入れで,Ms点直上の熱浴に焼入れし,試料が均一になるまで等温保持し,その後空冷してマルテンサイト変態を徐々に起こさせる方法である。(2)連続冷却変態曲線 CCT(continuous cooling transformation)曲線とも呼ばれる。実際の熱処理においては,オーステナイトは等温的に変態するのではなく,鋼はオーステナイト状態から連続的に冷却される。…

※「continuous cooling transformation」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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