Formation of the ωphase during the aging of βTi (7.1 Wt Pct Fe)—a mössbauer study |
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| Authors: | M M Stupel M Ron B Z Weiss |
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| Affiliation: | (1) Department of Materials Engineering, Technion, Israel Institute of Technology, Haifa, Israel;(2) Present address: Rensselear Polytechnic Institute, Israel |
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| Abstract: | The formation of the ω -phase during the decomposition of a retained βTi (7.1 wt pct Fe) alloy was studied by means of Mössbauer spectroscopy and X-ray diffraction. The linear dependence of (I.S.)ω on the Fe content of the alloy upon quenching was used to deriveC ω-the Fe concentration of the ω-phase in alloys aged at 350°C.C ωwas found to decrease with increasing aging time, from 5.91 wt pct Fe after 45 mins, to 4.5 wt pct Fe after 180 h of aging. The kinetic of the ω-phase formation is discussed qualitatively. The dependence of the (I.S.)β and (Q.S.)β on the iron concentration-Cβ was also determined. |
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