ON THE TTA (TIME-TEMPERATURE-AUSTENITIZATION) DIAGRAM IN THE CARBON STEELS.

Yoshiyuki Miwa, Hidetaka Ono

研究成果: Article

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The TTA (Time-Temperature-Austenitization) diagram was determined for a commericial pure iron, a eutectoid steel and various hypo-eutectoid steels, using a newly designed experimental apparatus previously described. It was observed that, in the TTA diagram, the starting time of the transformation shifts to the left side with increased over-heating and finally reaches 0 sec at 950 degree C in commercial pure iron, and, at 840 degree C, in the hypo-eutectoid and eutectoid steels. Therefore, it is concluded that there exists an upper limiting temperature at the zero-time axis that coincides with the upper limit of the transformation start on super rapid heating.

元の言語English
ページ(範囲)851-855
ページ数5
ジャーナルNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
41
発行部数9
出版物ステータスPublished - 1977 9
外部発表Yes

ASJC Scopus subject areas

  • Metals and Alloys

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