I assume you are referring to austenitic alloys since they are prone
to sensitization during welding and thermal treatments? You would not
expect a hardness increase in austenitic stainless steels after
quenching from a solution anneal. Austenitic stainless steels are not
hardenable since they do not form martensite on cooling.
Regards,
Jeffrey Sowards, PhD
On Aug 2, 6:12 am, Mansoor <mansoor...@gmail.com> wrote:
> Dear All,
> I am slightly confused about solution annealing of stainless steel.
> In this process we heat the steel above the temperature range of
> sensitisation (upto 900 deg C) and then we suddenly cools it so that
> sensitisation temp range passes quickly.
>
> I just want to know does this sudden cooling not increases the
> hardness of Stainless Steel.
> If No then Why.
> If yes then how to avoid that increased Hardness.
>
> Regards,
> Mansoor.
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