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.
980 views
Technical Discussions
Jean-Pascal Reymondin
Jean-Pascal Reymondin
06:50 Feb-13-2004
Detection of small nonmetallic inclusion

Does anybody know how to detect small non metalic inclusion ( 0,010 mm to 0,020 mm ) into steel ( X51CrMo3 or X51CrMoV5-1 ).
Steel thickness 0,5 mm
Détection on the surface and in the volume.

Thank you


 
 Reply 
 
Jim Kovarik
Jim Kovarik
06:19 Feb-19-2004
Re: Detection of small nonmetallic inclusion
----------- Start Original Message -----------
: Does anybody know how to detect small non metalic inclusion ( 0,010 mm to 0,020 mm ) into steel ( X51CrMo3 or X51CrMoV5-1 ).
: Steel thickness 0,5 mm
: Détection on the surface and in the volume.
: Thank you
------------ End Original Message ------------

A radiographic linear array system should be able to detect these indications.
Lixi Inc. has some experience with these systems. Their website is www.lixi.com


 
 Reply 
 
Francois Blanchard
Francois Blanchard
06:27 Feb-19-2004
Re: Detection of small nonmetallic inclusion
----------- Start Original Message -----------
: Does anybody know how to detect small non metalic inclusion ( 0,010 mm to 0,020 mm ) into steel ( X51CrMo3 or X51CrMoV5-1 ).
: Steel thickness 0,5 mm
: Détection on the surface and in the volume.
: Thank you
------------ End Original Message ------------

You can also investigate the possibility of a laser ultrasonic system. Expensive but able to detect high frequency ultrasound. (www.tecnar.com) With Ghz ultrasound, I was able to measured thickness foil down to 10um.
regards,
Francois




 
 Reply 
 
John Pursley
R & D
Envision Product Design, USA, Joined Oct 1999, 23

John Pursley

R & D
Envision Product Design,
USA,
Joined Oct 1999
23
00:06 Feb-20-2004
Re: Detection of small nonmetallic inclusion
Envision's high resolution digital X-ray panels and linear arrays along with a micro-focus source will image your inclusions in the 10 to 20 micron range. http://cmosxray.com

----------- Start Original Message -----------
: : Does anybody know how to detect small non metalic inclusion ( 0,010 mm to 0,020 mm ) into steel ( X51CrMo3 or X51CrMoV5-1 ).
: : Steel thickness 0,5 mm
: : Détection on the surface and in the volume.
: : Thank you
: You can also investigate the possibility of a laser ultrasonic system. Expensive but able to detect high frequency ultrasound. (www.tecnar.com) With Ghz ultrasound, I was able to measured thickness foil down to 10um.
: regards,
: Francois
------------ End Original Message ------------




 
 Reply 
 
rizal
rizal
01:03 Feb-24-2004
Re: Detection of small nonmetallic inclusion
please comment and give some tips about my research.. topic:
Investigation of crack defect in roof clay product using ultrasonic
machine
thanks alot..



 
 Reply 
 
Zhong Soo Lim
Zhong Soo Lim
01:40 Apr-15-2004
Re: Detection of small nonmetallic inclusion
----------- Start Original Message -----------
: Does anybody know how to detect small non metalic inclusion ( 0,010 mm to 0,020 mm ) into steel ( X51CrMo3 or X51CrMoV5-1 ).
: Steel thickness 0,5 mm
: Détection on the surface and in the volume.
: Thank you
------------ End Original Message ------------

Magnetic Leakage Flux method can be one of the possible candidates, which is good since it is a noncontact method, and no couplant is needed.
I have done a similar research, which is very easy to apply.
The detectivity of the nonmetallic inclusion can be down to 1x10^(-4) mm^(3), or better than that in some cases.
There can be some limitations.

1. Surface condition
2. Uniformity of the inner material structure

The thickness of 0.5 mm can be a problem.
But you can access from both sides (top and bottom).

If you have any question, then we can discuss further.

Zhong Soo Lim



 
 Reply 
 

Product Spotlight

MIZ®-21C: Truly Affordable Eddy Current Handheld with Surface Array Capability

Introducing MIZ-21C, the first truly affordable handheld eddy current instrument with surface array
...
capabilities. MIZ-21C can deliver fast, accurate inspections in demanding NDT applications including aerospace, oil and gas, manufacturing, and power generation. The surface array solution can reduce inspection time by up to 95% compared to traditional handheld pencil probes. The ergonomic design, long battery life, and intuitive touchscreen mean you can inspect more areas faster than ever without fatigue.
>

Research Center IDEKO develops an ultrasonic train wheel inspection system for CAF

The Basque Research centre IK4-IDEKO has developed a state-of-the-art ultrasonic inspection system f
...
or the train wheel. This system secures a sound condition of train wheels and is thus a significant contribution to rail transport safety. The device was delivered to CAF recently and its use allows the manufacturer to become an approved supplier of rolling stock in Italy, as it meets the demanding homologation standards of this country. \\\\r\\\\n
>

ISONIC 3510

Very Powerful Superior Performance Extremely Portable Smart Phased Array Ultrasonic Flaw Detector an
...
d Recorder with 2 Conventional UT and TOFD Channels uniquely combines PA, single- and multi-channel conventional UT, and TOFD modalities providing 100% raw data recording and imaging. Suitable for all kinds of every-day ultrasonic inspections
>

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).
>

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