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Technical Discussions
Shahid Bangash
Shahid Bangash
10:11 Feb-08-2010
UT of thermal spraying coating

Is UT of 260 mm dia steel rod having .5 mm nickel base coating possible?
If yes then how the metallurgical bonding of coating and substrate be confirmed ?

 
 Reply 
 
S.V.Swamy
Engineering, - Material Testing Inspection & Quality Control
Retired from Nuclear Fuel Complex , India, Joined Feb 2001, 787

S.V.Swamy

Engineering, - Material Testing Inspection & Quality Control
Retired from Nuclear Fuel Complex ,
India,
Joined Feb 2001
787
16:22 Feb-20-2010
Re: UT of thermal spraying coating
In Reply to Shahid Bangash at 10:11 Feb-08-2010 (Opening).

Yes, it is possible. Just do a normal inspection and where the bonding is good, the beam would go through and pick up the defects in the steel bar as usual. Where the bonding is bad, there would be a lot of reflection and the whole screen would show many spikes and noise. I have not tested this particular type of coating but have used a similar approach for other materials. Pl. try and let me know your experience.

 
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