METHOD AND DEVICE FOR CONDUCTING TESTS FOR FRETTING CORROSION Russian patent published in 2001 - IPC

FIELD: testing technology for study of fretting corrosion of fuel assemblies. SUBSTANCE: proposed method consists in placing coaxially connected movable and immovable specimens under test in hermetic chamber containing test medium and simulating for vibration contact of these specimens at preset frequency. Simulation for vibrating contact is effected by rotating the link holding the immovable specimen at eccentricity without turn relative to its axis; turn of movable specimen relative to immovable one is limited; then, specimens are heated and required eccentricity is set at are of location of specimens. Device for realization of this method has housing, movable link with specimen under te4st secured on its end, controllable eccentric connected with link and hermetic chamber. Housing is provided with hinge connected by means of race and provid3ed with turn limiter; hinge embraces link in its middle portion. First end of link is provided with runner secured after it by means of hinge; runner is engageable with race and eccentric; secured on second end of link is hermetic chamber kept in heating furnace; movable and immovable specimens under test and turn limiter are secured inside this chamber. EFFECT: possibility of making testing conditions more realistic; low cost of tests. 3 cl, 1 dwg