Abstract
Morphology and chemical compositions of the precipitates formed at the peak stage of secondary hardening in an Fe-Mo-C alloy were examined by atom probe field ion microscopy (AP-FIM). AP-FIM analysis has confirmed the existence of not only needle-like Mo2C precipitates along the 〈100〉α-Fe directions but also plate-like precipitates lying parallel to the {100}α-Fe planes. The latter were deduced to be clusters of Mo and a small fraction of Fe atoms that contain neither C nor N. These Mo-rich clusters are finer and more densely distributed than Mo2C. Thus, its presence may contribute to the secondary hardening of Mo steels.
Original language | English |
---|---|
Pages (from-to) | 141-150 |
Number of pages | 10 |
Journal | Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals |
Volume | 55 |
Issue number | 2 |
DOIs | |
Publication status | Published - 1991 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Mechanics of Materials
- Metals and Alloys
- Materials Chemistry