Influence of aluminium nitride on the abnormal grain growth in a microalloyed steel
DOI:
https://doi.org/10.3989/revmetalm.1995.v31.i1.977Keywords:
Microalloyed steel, Grain control, Abnormal growing, Aluminium nitrideAbstract
After a brief review about concepts and theories involved in control of grain growth by second phase particles, an experimental study of a medium carbon microalloyed steel with two levels of AIN is carried out. A system to study the grain size distributions in order to detect the abnormal grain growth is proposed. Results permit to plot a map of abnormal grain growth-time-temperature. The abnormal grain growth is derived to be due to the AIN dissolution by correlating the above maps with the theoretical volume fraction of precipitates. The importance and effect of the heating rate is also shown: high heating rates can produce a transient oversaturation that can lead to abnormal growing during the dissolution.
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Published
1995-02-28
How to Cite
Cabrera, J. M., Al Omar, A., & Prado, J. M. (1995). Influence of aluminium nitride on the abnormal grain growth in a microalloyed steel. Revista De Metalurgia, 31(1), 3–13. https://doi.org/10.3989/revmetalm.1995.v31.i1.977
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