Experimental Ultrasonic Assessment of Steel Induction Hardening by Measuring Two Distinct Times-of-Flight

Autor:	A. N. Kalashnikov, M. G. Somekh, W. Chen, R. E. Challis
Rok vydání:	2013
Předmět:	Time of flight Materials science Data acquisition business.industry Induction hardening Acoustics Ultrasound Resolution (electron density) Waveform Ultrasonic sensor Structural engineering business Case hardening
Zdroj:	Universal Journal of Materials Science. 1:201-209
ISSN:	2331-6705 2331-6691
DOI:	10.13189/ujms.2013.010403
Popis:	Ultrasonic NDE of case hardening of steel parts presents an attractive alternative to destructive assessment still used in industry. This experimental study showed that the ultrasonic assessment could be conducted by measuring two average times of flight across different dimensions of a hardened test sample. The consistently observed difference in the corresponding average ultrasound velocities was above the estimated accuracy of the measurements, and the scattered individual calculated values formed distinct clusters. The results were obtained by using a high resolution data acquisition instrument with the equivalent sampling frequency of 1.5 GHz and 512 averages, and differential measurements of the time of flight by determining zero crossings of the echo waveforms.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9d5e7ebab0a3d5d0194aed6ca9bc1c0d https://doi.org/10.13189/ujms.2013.010403 Zobrazit plný text záznamu