The delta ferrite content will decrease with PWHT time. Depending on composition and ferrite content, the ferrite will transform into brittle sigma-phase. Impact properties of the weld metal will decrease, tensile strength increase. This is especially pronounced for higher chromium contents, like 309-type weld metal.
Regards,
Claes Gillenius
Development Engineer, MMA. (Spec. stainless and non Fe-alloys)
| "P.Rao" <vasantharao2009@rediffmail.com> Sent by: materials-welding@googlegroups.com 2010-06-20 14:39
|
|
Dear all,
Is it Delta ferrite number/value in stainless welds/Overlay will varies with PWHT soaking time?.
regards
P.Rao.
0966543636485
--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding-unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
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.
______________________________________________________________________
This communication and any files transmitted with it contain information which is confidential and which may also be privileged. It is for the exclusive use of the intended recipient(s). If you are not the intended recipient(s), please note that any disclosure, copying, printing or use whatsoever of this communication or the information contained in it is strictly prohibited. If you have received this communication in error, please notify us by e-mail or by telephone as above and then delete the e-mail together with any copies of it.
ESAB does not accept liability for the integrity of this message or for any changes, which may occur in transmission due to network, machine or software failure or manufacture or operator error. Although this communication and any files transmitted with it are believed to be free of any virus or any other defect which might affect any computer or IT system into which they are received and opened, it is the responsibility of the recipient to ensure that they are virus free and no responsibility will be accepted by ESAB for any loss or damage arising in any way from receipt or use thereof.
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding-unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
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.
No comments:
Post a Comment