Prediction of termination migration of a rod-type particle in Ti–6Al–4Fe alloy

Abstract

The kinetics for the termination migration of a rod-type alpha particle in a two-phase Ti alloy was predicted on the basis of the edge recession theory. The developed model quantified the effect of geometrical dimensions and diffusional factors on the spheroidization rate. Comparison with the experimental results of Ti–6Al–4Fe showed that the model can provide a reasonable prediction of the time to complete the static spheroidization of rod-type particles.

Keywords:

• titanium
• globularization
• model
• rod
• martensite
• spheroidization

Acknowledgments

This study was supported partly by a grant from the Fundamental Research Program of the Korea Institute of Materials Science, Republic of Korea, and partly by a grant (10041185) from the Fundamental R&D Program for Core Technology of Materials funded by the Ministry of Knowledge Economy, Republic of Korea.