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852 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  Translate  Close   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  Translate  Close   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  Translate  Close   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  Translate  Close   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  Translate  Close   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  Translate  Close   Product Spotlight Compact NDT inspection-heads for measurements with active thermography StandAT-Automation Technology GmbH The compact inspection head is suitable for thermographic ndt tasks. The uncooled infrared camera ... is specially developed for NDI-tasks and offers a thermal sensitivity until now known only from thermal imagers with cooled detector. All required components and functions are integrated into the inspection-head. You will only need an ethernet cable to connect the sensor with the evaluation system. > 2 Videos Ultrasonic Flaw Detector & Thickness Gauge: Smartor StandSIUI (Shantou Institute of Ultrasonic Instruments Co.,Ltd) SIUI’s newly launched Smartor is a combination of ultrasonic testing and ultrasonic thickness me ... asurement. ●IP 66 ●Compact size: 198 (W)* 128 (H) *520 (D) mm ●0.9kg only with battery ●5.7" LCD with high resolution 640×480 pixels ●One-hand operation ●Multiple conventional UT functions ●Smart Test Wizard ●Weld Simulation > 6 Showcases4 Videos FD800 Bench Top Flaw Detectors StandElcometer NDT The bench-top FD800 flaw detector range combines state-of-the-art flaw detection with advanced mater ... ial thickness capabilities. Designed for use in the laboratory these gauges are the tool you need for all your flaw detecting needs. > 3 Showcases ISAFE3 Intrinsically Safe Sensor System StandVallen-Systeme GmbH ISAFE3 intrinsically safe sensor system of Vallen Systeme is especially targeted at the petrochemica ... l - as well as oil and gas transportation industry. The sensor system is designed for permanent monitoring or periodic inspection tasks. Sensors are available for different AE-frequency ranges optimized for corrosion and fatigue crack detection and other applications. The ISAFE 3 sensor system consists of an AE-sensor (model ISAS3) certified according to ATEX/IEC for installation in zone 0, gas group IIC, IP68, 20 to +60 °C, and a signal isolator (model SISO3) certified for installation in zone 2. An ISAS3 sensor can be mounted in atmosphere or submerged, e.g. in water or crude oil. It is supported by mounting tools for temporary (magnets) or permanent (welded) installation. ISAFE3 supports automatic sensor coupling test and can be used with any AE signal processor supporting 28V supply at 90 mA peak, e.g. Vallen Systeme ASIP-2/A. > 2 Showcases more Showcases Share... Home Exhibition Archive Forum Jobs MyNDT Network Events Directory NDT A-Z Advertise Privacy Policy Contact About © NDT.net - Where expertise comes together. The Largest Open Access Portal of Nondestructive Testing (NDT)- since 1996 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