| Title |
Effect of test temperature and load ratio on hydride cracking rate of Zr-2.5Nb alloy |
| Another Title |
Bandymo temperatūros ir apkrovos koeficiento įtaka lydinio Zr-2.5Nb hidridinio pleišėjimo greičiui. |
| Authors |
Grybenas, A ; Makarevicius, V ; Dundulis, G |
| Full Text |
|
| Is Part of |
Mechanika.. Kaunas : Technologija. 2007, Nr. 1, p. 21-26.. ISSN 1392-1207. eISSN 2029-6983 |
| Keywords [eng] |
zirconium alloys ; zirconium hydride ; delayed hydride cracking ; cyclic loading |
| Abstract [eng] |
Delayed hydride cracking (DHC) rate in Zr-2.5Nb pressure tube material was determined under different temperature and loading conditions. Test specimens con-taining hydrogen were manufactured from RBMK (TMT-1) and CANDU pressure tube materials, depositing hydride layer and homogenizing it at elevated temperatures to the required hydrogen concentration. Delayed hydride cracking rates at constant load-ing were measured at 144, 250 and 283°C. Cycle loading tests were done at 250°C. Loading frequency was 1 cycle/min with different mini-mum/maximum load ratio R, changing from 0.13 to 1. It was determined that with the decrease of load ratio R, DHC rate increases up to 7 times, from 3.2·10-8 m/s to 4.8·10-9 m/s. |
| Published |
Kaunas : Technologija |
| Type |
Journal article |
| Language |
English |
| Publication date |
2007 |
| CC license |
|
