Influence of Heat Treatments on the Microstructure and Mechanical Properties in Ti-10V-2Fe-3Al Alloy

Abstract:

This paper reports the results of an ongoing research which was set up to investigate the effect of microstructures on the activity of different deformation mechanisms and the resulting mechanical behavior of the Ti-10V-2Fe-3Al alloy. Various microstructures were established by different heat treatments. Depending on the microstructures, obvious differences in the mechanical properties of this alloy were obtained. It is shown that in α+β phase field solution treatment conditions, with the increase of heating time, the fraction of globular α phase decreases, the compression strength increases. In β+(α+β) phase field solution treatment conditions, with the increase of heating time, alloys have opposite trends. In aging conditions, the microstructure and mechanical property do not change apparently with the aging time. The microstructure of the α phase and β phase has a great influence on the fractographic morphology.

• Periodical: Applied Mechanics and Materials (Volume 750)
• Pages: 160-165
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.750.160
• Online since: April 2015
• Authors: Cong Li, Jian Chen*, Wei Li, Wei Qiu, Jian Jun He
• Keywords: Heat Treatment, Mechanical Property, Microstructure, Titanium Alloy

References

[1] C. Leyens, M. Peters, Titanium and Titanium Alloys: Fundamentals and applications, 1st ed., betz-druck GmbH, Darmstadt, (2004).

[2] G. Lütering, J.C. Williams, Titanium, 2nd ed, Springer, Berlin, (2007).

[3] B. Wang, Z.Q. Liu, Y. Gao, S.Z. Zhang, X.Y. Wang, Microstructural evolution during aging of Ti-10V-2Fe-3Al titanium alloy, J. University. Sci. Technol. Beijing. 14(2007)335-340.

DOI: 10.1016/s1005-8850(07)60066-8

[4] R.Q. Bao, X. Huang, C.X. Cao, Deformation behavior and mechanisms of Ti-1023 alloy, Trans. Nonferrous Met. Society. China. 16(2006)274-280.

DOI: 10.1016/s1003-6326(06)60046-0

[5] S. Neelakantan, D.S. Martin, P.E.J. Rivera-Diaz-del-Castillo, S. van der Zwaag, Plasticity induced transformation in a metastable β Ti-1023 alloy by controlled heat treatments, Mater. Sci. Technol. 25(2009)1351-1358.

DOI: 10.1179/174328408x385773

[6] C. Li, X. Wu, J.H. Chen, S. van der Zwaag, Influence of α morphology and volume fraction on the stress-induced martensitic transformation in Ti-10V-2Fe-3Al, Mater. Sci. Eng. A. 528(2011)5854-5860.

DOI: 10.1016/j.msea.2011.03.107

[7] A. Devaraj, S. Nag, R. Srinivasan, R.E.A. Williams, S. Banerjee, R. Banerjee, H.L. Fraser, Experimental evidence of concurrent compositional and structural instabilities lead to omega precipitation in titanium-molybdenum alloys, Acta Mater. 60(2012).

DOI: 10.1016/j.actamat.2011.10.008

[8] F. Prima, P. Vermaut, G. Texier, D. Ansel, T. Gloriant, Evidence of a-nanophase heterogeneous nucleation from w particles in a b-metastable Ti-based alloy by high-resolution electron microscopy, Scripta. Mater. 54(2006)645-648.

DOI: 10.1016/j.scriptamat.2005.10.024