Solution annealing is to dissolve the precipitated carbides at high temperature say 1050degC and then quench it to avoid carbide precipitation during cooling.
Hardness will not increase since there is no phase transformation and formation of martensite as in the case of carbon and low alloy steels.
J.GERALD JAYAKUMAR 00919344954677
--- On Mon, 8/2/10, Mansoor <mansoor399@gmail.com> wrote:
> From: Mansoor <mansoor399@gmail.com>
> Subject: [MW:6252] Solution Annealing of Stainless Steels
> To: "Materials & Welding" <materials-welding@googlegroups.com>
> Date: Monday, August 2, 2010, 1:12 PM
> 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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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
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