where expertise comes together - since 1996 -

The Largest Open Access Portal of Nondestructive Testing (NDT)

Conference Proceedings, Articles, News, Exhibition, Forum, Network and more

where expertise comes together
- since 1996 -

Airstar Inc.
Application of the newest technologies, such as air-coupled ultrasound, digital instrumentation, signal processing, and transducer technology.

370 views
Technical Discussions
Ingvar
Ingvar
06:07 Dec-23-2008
High temperature NDT ?

Which NDT methods can be used for the detection of cracks in steel pipelenes at the temperature above 500 Celsius ?


    
 
 
Jim Stuckless
Jim Stuckless
02:02 Dec-23-2008
Re: High temperature NDT ?
Ultrasonics can be utilized with specialized high temp couplant. MT can be used but the issue of specialized consumables arises. PT is the simplest but again the need for a specialized penetrant and developer comes into play. It really depends on what type of cracks you're searching for... are they surface or sub-surface? 500 Celsius really isnt that hot. I've done examinations on considerably hotter surfaces. I believe the hottest was close to 900 celsius... though it was very difficult to get a reproduceable result... at that temperature minor fluctuations make huge differences on most UT sets. The set I found best for extreme high temperatures was the krautkramer USN58 series (L, K and I believe there's an N model too... my favorite is the L.... still use it today). hope some of this helps.

Jim




    
 
 

Product Spotlight

High Resolution Industrial CT System for Small/Medium Size Parts Inspection

The YXLON FF35 CT computed tomography system is designed to achieve extremely precise inspection res
...
ults for a wide range of applications. Available in a single or dual tube configuration, it is perfect for very small to medium size parts inspection in the automotive, electronics, aviation, and material science industries.
>

Spot weld inspection with Phased Array – PHAsis.one

The first PAUT spot weld inspection device offering a physical resolution of the spot weld diamete
...
r better than 0.35mm. Precise: more than 700 real UT measurements per spot weld. Easy to go: minimal training required due to the user friendly inspection software. Be sure: safe evaluation due to the imaging result display and automated creation of an evaluation proposal for the spot weld quality.
>

Lyft™: Pulsed Eddy Current Reinvented

PEC Reinvented—CUI Programs Redefined Corrosion under insulation (CUI) is possibly the greatest u
...
nresolved asset integrity problem in the industry. Current methods for measuring wall thickness with liftoff, without removing insulation, all have severe limitations. Eddyfi introduces Lyft — a reinvented, high-performance pulsed eddy current (PEC) solution. The patent- pending system features a state-of-the-art portable instrument, real- time C-scan imaging, fast data acquisition with grid-mapping and dynamic scanning modes, and flexibility with long cables. It can also scan through thick metal and insulation, as well as aluminum, stainless steel, and galvanized steel weather jackets. Who else but Eddyfi to reinvent an eddy current technique and redefine CUI programs. Got Lyft?
>

Echomac® PA Rail Wheel Tester

MAC introduces two versions of Rail Wheel Testers using ECHOMAC® PA platform based on customer requ
...
irements.
>

Share...
We use technical and analytics cookies to ensure that we will give you the best experience of our website - More Info
Accept
top
this is debug window
s