Abstract
The interdiffusion behavior of BCC alloys of Ti-Sn binary and Ti-Al-Sn ternary was investigated at 1473 K (1200 °C) by the diffusion-couple technique. The extracted interdiffusion coefficients of Ti-Sn binary was found to gradually increase with increasing the Sn content, whereas those of Ti-Al-Sn ternary, either main or cross, greatly enhance as the content of diffusing species increases. By a way of comparison, Sn diffusion in Ti-Al-Sn ternary was discerned to occur by the vacancy mechanism.
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Acknowledgments
This work was supported by the Natural Science Funds of China [Grant No. 51571113], International S&T Cooperation Program of China (2015DFA51430) and the Joint Project of Industry-University-Research of Jiangsu Province [Grant No: BY2016005]. QW would like to acknowledge the support by the International S&T Cooperation Program of China (2015DFA51430) and the SICAM Scholarship by Jiangsu National Synergetic Innovation Center for Advanced Materials.
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This invited article is part of a special issue of the Journal of Phase Equilibria and Diffusion in honor of Prof. Zhanpeng Jin’s 80th birthday. The special issue was organized by Prof. Ji-Cheng (JC) Zhao, The Ohio State University; Dr. Qing Chen, Thermo-Calc Software AB; and Prof. Yong Du, Central South University.
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Wu, Q., Wang, J., Gu, Y. et al. Experimental Diffusion Research on BCC Ti-Al-Sn Ternary Alloys. J. Phase Equilib. Diffus. 39, 724–730 (2018). https://doi.org/10.1007/s11669-018-0676-6
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DOI: https://doi.org/10.1007/s11669-018-0676-6