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- Title
Studies of the Influence of Alloying Elements on the Growth of Ferrite from Austenite under Decarburization Conditions: Fe-C-NI Alloys.
- Authors
Phillion, A.; Zurob, H. S.; Hutchinson, C. R.; Guo, H.; Malakhov, D. V.; Nakano, J.; Purdy, G. R.
- Abstract
We have evaluated controlled decarburization as a method for probing the effect of alloying elements on ferrite growth from austenite. The technique permits the exploration of longer-time ferrite layer growth; it minimizes the effects of interface structure on ferrite growth; and it permits the isolation of the effects of temperature and alloying element concentration on ferrite/austenite interface motion. The study of the decarburization of initially homogeneous Fe-C-Ni alloys was complemented by experiments using specimens with a controlled nickel concentration gradient. Although the decarburization method yields consistent results at longer times, it is found to be less appropriate for the study of initial ferrite growth. Nucleation in the gas/solid interface region, coupled with uncertainties about the precise time of decarburization, leads to large relative errors at the earliest times. For these reasons, the method is considered a valuable complement to studies based on precipitation boundary conditions.
- Subjects
FERRITES; AUSTENITE; AMALGAMATION; MICROALLOYING; DECARBURIZATION of steel; METALLURGY
- Publication
Metallurgical & Materials Transactions. Part A, 2004, Vol 35, Issue 4, p1237
- ISSN
1073-5623
- Publication type
Article
- DOI
10.1007/s11661-004-0297-z