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 -

Sonatest Ltd
From our three distinct business centres in the UK, USA and CANADA, Sonatest design and produce a leading range of high performance ultrasonic NDT equipment and accessories.

1904 views
Technical Discussions
ram
NDT Inspector, -
Kuwait, Joined Jan 2010, 13

ram

NDT Inspector, -
Kuwait,
Joined Jan 2010
13
11:48 Mar-06-2010
UT on duplex steel casting

DEar All,
i have one duplex steel casting which thickness is 100 mm.
can anyone advice me how test to the casting ?
any special technique like PA or TOFD will help?

appreciate your response....
regards
rama

1    
 
 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
15:37 Mar-06-2010
Re: UT on duplex steel casting
In Reply to ram at 11:48 Mar-06-2010 (Opening).

Dear Rama,

Depending on the applications, many castings are produced to some national or international standards. The standard and or the supplementary requirements specified by the designer, customer would specify the inspection requirements. Before a casting is made, a production and quality assurance manual / procedures would have been prepared.

If you are a researcher and are trying to investigate the casting, you can try ultrasonic testing and radiography, apart from penetrant testing.

The acceptance criteria would again be dependent on the application.

Regards

Swamy

    
 
 Reply 
 
rama
NDT Inspector, -
Kuwait, Joined Jan 2010, 13

rama

NDT Inspector, -
Kuwait,
Joined Jan 2010
13
05:30 Mar-07-2010
Re: UT on duplex steel casting
In Reply to S.V.Swamy at 15:37 Mar-06-2010 .

Dear Swamy ,
thank you vry much....but ....
what's is the effect of UT on DUPLEX STEEL CATING?
and is there any real advantage of Phassed Arry or TOFD over conventional UT?
if u using conventional UT is there any spl transducer is req?

    
 
 Reply 
 
Nigel Armstrong
Engineering, - Specialist services
United Kingdom, Joined Oct 2000, 1096

Nigel Armstrong

Engineering, - Specialist services
United Kingdom,
Joined Oct 2000
1096
09:54 Mar-07-2010
Re: UT on duplex steel casting
In Reply to rama at 05:30 Mar-07-2010 .

Well Ram at 100mm thickness I can imagine slow cooling, grain growth with all the concomitant ills (as far as UT) that entails. Scatter, beam-bending, noise requiring low frequency compression wave small diameter probe (to maximise beam-spread coverage). Your probe supplier may have wide coverage probes.

Your will need a castings expert to tell you sites of potential defects if you want to focus on those areas.

    
 
 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
12:59 Mar-08-2010
Re: UT on duplex steel casting
In Reply to rama at 05:30 Mar-07-2010 .

Dear Rama,

In addition to what Nigel Armstrong wrote, I would like to add that without knowing more about the casting details and the defect level that is being attempted, we cannot advise specific details. Phased Array or TOFD have their specific advantages over conventional UT but unless you are just playing around with the casting and also have access to all such instruments in house, it would be advisable to exhaust the power of conventional NDT techniques.

Unless you come up with specific details of the casting and the applicable specifications, our advice is bound to be generalistic.

Regards

Swamy

    
 
 Reply 
 

Product Spotlight

PROlineTOP Plug & Play Ultrasonic inspection device

As Plug & Play solution it units all control and operation elements in a small housing and therefo
...
re replaces the typical control cabinet...
>

TOPAZ® 64: Fully Integrated Portable 64 Channel PAUT Instrument with FMC & TFM

Introducing TOPAZ64, the industry’s most intelligent fully integrated, portable 64-channel phased
...
array ultrasound (UT) instrument. TOPAZ64 combines code-compliant phased array UT with the industry’s most advanced full matrix capture (FMC) and total focusing method (TFM) capabilities. Featuring the highest acquisition frequency in its class, high resolution FMC and a 12” multi-touchscreen, users can easily visualize even the smallest flaws. TOPAZ64 can generate a bipolar pulse that provides more acoustic energy versus previous models for punching through thick components. The result is a portable tool that delivers increased inspection coverage, more accurate signals, and the ability to handle all UT inspections in one package. TOPAZ64 is ideal for challenging applications in transportation, oil and gas, manufacturing and power generation.
>

NEW - TD Focus-ScanRX

The NEW Next Generation Advanced UT platform, TD Focus ScanRX - Also available as a card stack solut
...
ion. Key Improvements 1. Data acquisition is significantly faster than current design 2. Better aesthetic – closely aligns with HandyScan RX 3. Improved IP rating (Target IP66) 4. Ruggedized housing 5. Connectors are protected from impact and ingress 6. Integrated stand and separate retractable handle easy to keep clean) 7. Touchscreen with ruggedized display glass 8. 3-Axis encoder input
>

NDT.net launches mobile-friendly design

NDT.net has revamped its website providing a mobile-friendly design.The front page received a comp
...
letely new design and all other sections are now reacting responsively on mobile devices. This has been a major step to make our website more user- friendly.
>

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