Question:
The (\(\alpha + \beta\)) Ti alloys are solution treated in the:
The (\(\alpha + \beta\)) Ti alloys are solution treated in the:
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Solution treatment for \(\alpha + \beta\) titanium alloys is done in the (\(\alpha + \beta\)) region to retain both phases and achieve a desirable combination of mechanical properties.
Updated On: Jun 20, 2025
- \(\alpha\) region
- \(\beta\) region
- (\(\alpha + \beta\)) region
- \(\gamma\) region
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The Correct Option is C
Solution and Explanation
Titanium alloys are categorized based on the phases present at room and elevated temperatures: \(\alpha\), \(\beta\), and \(\alpha + \beta\) alloys.
For \(\alpha + \beta\) titanium alloys, solution treatment is performed in the (\(\alpha + \beta\)) phase region, which lies below the \(\beta\)-transus temperature.
This treatment allows for the formation of a two-phase microstructure containing both \(\alpha\) and retained \(\beta\) phases, offering a good balance of strength and ductility. Heating into the \(\beta\) region would result in complete transformation to \(\beta\), losing the benefits of the two-phase microstructure.
The \(\gamma\) region is not relevant to titanium alloys.
For \(\alpha + \beta\) titanium alloys, solution treatment is performed in the (\(\alpha + \beta\)) phase region, which lies below the \(\beta\)-transus temperature.
This treatment allows for the formation of a two-phase microstructure containing both \(\alpha\) and retained \(\beta\) phases, offering a good balance of strength and ductility. Heating into the \(\beta\) region would result in complete transformation to \(\beta\), losing the benefits of the two-phase microstructure.
The \(\gamma\) region is not relevant to titanium alloys.
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