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 -
567 views
Technical Discussions
Nihat Kurkcu
Engineering
Turkey, Joined Jul 2001, 4

Nihat Kurkcu

Engineering
Turkey,
Joined Jul 2001
4
06:59 Dec-11-2001
NDE of Thermal Spray Coatings


I would like to know if anybody has experience in NDE of Thermal Spray Coatings. I am looking for mainly:
- Adhesive Bond Strenght Determination by Ultrasonics and/or other related NDE methods
- Integrity of Thermal Spray Coatings: Determination of oxides, porosity, delaminations...

Thanks,
Nihat
General Electric Marmara Research Center


 
 Reply 
 
Jonathan Buttram
Engineering
USA, Joined Nov 1999, 1

Jonathan Buttram

Engineering
USA,
Joined Nov 1999
1
07:14 Dec-11-2001
Re: NDE of Thermal Spray Coatings
:We have applied EMAT technology toward the a couple of thermal spray applications. The first is related to bond coating integrity and thickness measurement, and the second is the development of a real-time monitoring sensor used in the application of the medium. All of these applications utilize ultrasonic methods without the need for couplant. Please feel free to contact me at Innerspec Technologies if more information is required. Thanks,
Jonathan Buttram (jdbuttram@innerspec.com)

: I would like to know if anybody has experience in NDE of Thermal Spray Coatings. I am looking for mainly:
: - Adhesive Bond Strenght Determination by Ultrasonics and/or other related NDE methods
: - Integrity of Thermal Spray Coatings: Determination of oxides, porosity, delaminations...
.
: Thanks,
: Nihat
: General Electric Marmara Research Center
.



 
 Reply 
 
Xavier
Xavier
02:19 Dec-12-2001
Re: NDE of Thermal Spray Coatings
I worked on a 2 years project related to the detection of delamination in thermal spray coatings metals (ceramic on top of a superalloy base metal). I investigated the use of ultrasonic testing (mainly using Lamb waves) but also infrared thermography.

In some cases we were able to obtain interesting results, but these depended greatly on the surface finish of the ceramic coating.

Also, for most application it is not very suitable to use ultrasonic testing since a couplant (either water or gel) can actually infiltrate the ceramic and may remain within the material. So we were trying to develop a non-contact and couplant-free inspection technique.

Unfortunately, we (the only 2 researchers involved in this project) have left the research institute where the research was carried out and we haven't been replaced. So I don't know if the project is still running.

Neverthless, it is very challenging but interesting task.

Good luck !

:
: I would like to know if anybody has experience in NDE of Thermal Spray Coatings. I am looking for mainly:
: - Adhesive Bond Strenght Determination by Ultrasonics and/or other related NDE methods
: - Integrity of Thermal Spray Coatings: Determination of oxides, porosity, delaminations...
.
: Thanks,
: Nihat
: General Electric Marmara Research Center
.



 
 Reply 
 

Product Spotlight

NOVO Armor 15 & NOVO Armor 22

The Armor Kit Contains the NOVO Armor, which provides additional mechanical protection to the NOVO 1
...
5WN & NOVO 22WN Detectors, the Armor Stand and a traveling soft cover. - Newest shock absorbent technology case - Water resistant design - Supports wired & wireless communication - Multiple positioning options - Tripod connection using the Built-in 1/4” threads - Simple Detector battery replacement
>

SITEX CPSERIES

Teledyne ICM’s CPSERIES has been designed with a view to revolutionizing the handling and perfor
...
mances of portable X-Ray sets. Despite having managed to halve the weight of similar portable X-Ray generators available on the market (while continuing to provide the same power output), the SITEX CPSERIES generators feature a shutter, a laser pointer, a beryllium window, an aluminum filter and two integrated diaphragms (customized sizes are available upon request). Without compromising the robustness and reliability for which ICM products are renowned, the small size and light weight of the SITEX CPSERIES will radically change the way that you perform your RT inspections. And you will see a positive impact in terms of both quality and return on investment (ROI).
>

NEW Wheel Type Phased Array Probe

DOPPLER NEW Wheel Type Phased Array Probe, more stable, new tyre makes lesser acoustic attenuation
...
, much lighter makes easier to handle, more slim size, magnetic and mechanical encoder optional etc...more
>

High-performance Linear Phased Array Probes

Available to order from stock in a range of 5MHz – 7.5MHz and from 16 to 64 elements. Designed w
...
ith piezo-composite elements, Phoenix phased array probes provide high-resolution imaging to maximise sensitivity; accurate ultrasonic detection and sizing of defects in welds; and effective corrosion mapping. Housed in a rugged stainless steel case for on-site industrial NDT applications.
>

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