Tuesday, May 31, 2011

Re: [MW:11220] any one can explain how welding CRACKS looks on x-ray film of any welded pipes ETC. ----

hi,
it will be straight under lower mag and same will be in zig-zag/tapered in both direction under high mag.
each zig-zag point connects to make a straight line(H .mag).
under low mag u can see zig-zag only if the residual/ service stress is high enough to reveal it and it will be not straight at normal mag.



On Sun, May 29, 2011 at 2:24 PM, sajidalam mohd. <engineer_makes_world@yahoo.co.in> wrote:
DEAR EXPERTS
                     GOOD DAY
CAN ANY ONE EXPLAIN HOWS CRACKS IN WELD ON X-RAY FILMS LOOKS?
 
IT LOOK LIKE ZIZ ZAG???
ITS LOOKS LIKE THIN/NARROW STRAIGHT LINE???
 
BECAUSE I AM  CONFUSED ABOUT INDICATION OF CRACKS OF WELDING ON X-RAY FILM?
 
 
WAITING FOR REPLY.
 
REGARDS
MOHAMMAD SAZID ALAM
INSPECTION ENGINEER
AICO-DAMMAM
MOBILE:-0534077860

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