Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 851-855 |
| Number of pages | 5 |
| Journal | Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals |
| Volume | 41 |
| Issue number | 9 |
| Publication status | Published - 1977 Sep |
| Externally published | Yes |
ASJC Scopus subject areas
- Metals and Alloys