Hi,
This is not a crack. In dissimilar welding between two materials with huge difference in mechanical properties (in this case ductility) the effect of bending shown as difference in reaction of those materials to the suffered load. this line (probably in CS fusion line) is due to difference in ductility.
Regards
On Sat, May 9, 2015 at 7:22 AM, nguyen tuan <tuanpvecc@gmail.com> wrote:
Hi All--We have bending test for PQ (welding process FCAW , Material CS to stainless steel ) result was fail (cracked). But We check PT can't find cracking .Do somebody have same problem . what is conclusion .Thanks youTuan
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M. Shokri Arfaei
ISA-ISTS - Metallurgy Lab. Manager
ASNT NDT Level III
International Welding Engineer
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