HDKBR INFO Magazin, Vol. 6 No. 1, 2016.
Stručni rad
Metal Magnetic Memory (MMM) Method for Non-Destructive Testing and Early Diagnostics of Degradation Processes and Comparison with Ultrasonic Inspection, a Representative of a Classical Non-Destructive Testing Method
Fran Jarnjak
; HRID – Non destructive testing d.o.o., Zagreb, Hrvatska
Sažetak
This paper presents a Metal Magnetic Memory (MMM) method to inspect welds and base metal, which is standardized as per ISO 24497. MMM method is used to find stress concentration zones on the test object, them being locations where defects would be either already present or most likely to start occurring even before they can be confirmed with the conventional NDT methods. MMM method and its results are compared with the conventional ultrasonic (UT) testing method on weld samples, where a quite good correlation between their results is confirmed.
Ključne riječi
metal magnetic memory; early diagonostics; ISO 24497; stress concentration zones
Hrčak ID:
170435
URI
Datum izdavanja:
29.12.2016.
Posjeta: 1.145 *