Solidification Cracking
Solidification Cracking
(OP)
Hi everyone.
My QC Manager wanted me to search for Solidification Cracking and find out when the Solidification Cracking takes place (when W/D < 0.7 or W/D < 1)? And what are the Parameters W and D?
Thank you for your help.
My QC Manager wanted me to search for Solidification Cracking and find out when the Solidification Cracking takes place (when W/D < 0.7 or W/D < 1)? And what are the Parameters W and D?
Thank you for your help.





RE: Solidification Cracking
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RE: Solidification Cracking
RE: Solidification Cracking
May I ask another question?
1) How long does the Solidification Cracking take to appear after the welding?
2) To what thickness the Solidification Cracking occures after PWHT?
Sorry for bad English grammer.
Thanks.
RE: Solidification Cracking
RE: Solidification Cracking
RE: Solidification Cracking
Thank you in advance.
RE: Solidification Cracking
Steve Jones
Materials & Corrosion Engineer
http://www.linkedin.com/pub/8/83b/b04
RE: Solidification Cracking
Thanks.
RE: Solidification Cracking
Reheat cracking only occurs during PWHT and can grow after PWHT based on tensile stresses in service. Normally, nondestructive testing is performed after welding or PWHT to avoid missing either types of defects.
RE: Solidification Cracking
RE: Solidification Cracking
PWHT has no effect on solidification cracking.
RE: Solidification Cracking
ΔG =Cr+3.3Mo+8.1V
and it was mentioned if ΔG<0 then the suceptibility to this cracking is low!! while ΔG can not be less than zero!!!
I need to know what is the proper formula if there is.
Thank you.
RE: Solidification Cracking
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What is being mentioned is that when [delta]G[/delta] goes toward zero, susceptibility is reduced. The equation represents the heavy hitters that influence reheat or stress relief cracking. Yes, for carbon steels this can be zero - no chromium, no molybdenum and no vanadium!
RE: Solidification Cracking
http://www.theiiwmumbai.8m.com/defects7.htm