Your answer is partially correct.

Using the Animated Figure $10\mathrm{.}40,$ the isothermal transformation diagram for a $\backslash (0\mathrm{.}45\backslash$mathrm$\{$wt$\}\backslash \%\backslash$mathrm$\{$C$\}\backslash )$ steel alloy, specify the nature of the final microstructure $($in terms of the microconstituents present$)$ of a small specimen that has been subjected to the following temperature treatments. In each case assume that the specimen begins at $\backslash (845^\{\backslash$circ$\}\backslash$mathrm$\{$C$\}\backslash )$ and that it has been held at this temperature long enough to have achieved a complete and homogeneous austenitic structure.

a$)$ Rapidly cool to $700$ degrees $\backslash (\backslash$mathbf$\{$C$\}\backslash ),$ hold for $\backslash (100,000\backslash$mathrm$\{$~s$\}\backslash ),$ then quench to room temperature.

b$)$ Rapidly cool to $625$ degrees C $,$ hold for $10$ s $,$ then quench to room temperature.

eTextbook and Media

Hint

Last saved $4$ minutes ago.

Attempts: $2$ of $3$ used

Saved work will be auto$-$submitted on the due date.

Auto$-$submission can take up to $10$ minutes.