Abstract
The effects of trace boron on microstructure and mechanical properties of β type Ti-9V-3Al-3Cr-3Zr-3.5Mo (wt. %) alloy have been investigated in this study. Upon the addition of 0.02 wt. % boron, the grain size of the B-modified alloy was almost four times smaller than that of the B-free alloy. Accordingly, the tensile strength and elongation of B-modified alloy increased from 712 MPa and 14.6 % to 813 MPa and 17.9 %, respectively, mainly due to the effect of grain refinement.
Publisher
Trans Tech Publications, Ltd.
Reference14 articles.
1. G. Lutjering, J.C. Williams: titanium (Springer Verlag Publication, Germany 2007).
2. Z. Li, C. Cao: Intermetallics Vol. 13, (2005), p.251.
3. A. B. Godfrey, M. H. Loretto: Intermetallics Vol. 4 (1996), p.41.
4. D.L. Lin et al: Intermetallics Vol. 8 (2000), p.549.
5. W. Chen, C. Boehlert: Mater. Sci. Eng. A Vol. 494, (2008), p.132.