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http://dx.doi.org/10.4313/JKEM.2006.19.1.091

Effect of Aging on fatigue of Al Clad INVAR Core Wire for High Capacity and Low Sag(STACIR/AW) Conductor ( 1 )  

Kim Shang-Shu (한국전기연구원 신소재응용연구그룹)
Kim Byung-Geol (한국전기연구원 신소재응용연구그룹)
Hyun Suk-Kyu (한국전기연구원 신소재응용연구그룹)
Sin Goo-Yong (한국전력공사 전력연구원)
Lee Dong-Il (한국전력공사 전력연구원)
Min Byung-Uk (한국전력공사 송변전처 송변전건설팀)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.19, no.1, 2006 , pp. 91-99 More about this Journal
Abstract
Fatigue properties of INVAR/AW wires have been investigated under the heat exposure in order to ensure stable operation and to estimate life span of their power line. In the case of heat exposure for 10000 hr, fatigue life and limit increased. For further heat exposure, fatigue limit decreased due to the decrease in yield strength. The variation fatigue of strand wire was strongly dependent on its amplitude. Also, cracks in wires of 7 strands were caused by stress concentration at the outer surface and fretting between each wire during vibration.
Keywords
STACIR/AW conductor; Al clad invar; Fatigue; Strand wire;
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