Affiliation:
1. Vilnius Gediminas Technical University
Abstract
The influence of thermal cyclic overloads on mechanical properties of winding
conductors was investigated. Copper-niobium microcomposite, soft and hard pure copper wires
were conditioned at temperatures range from 77 K to 500 K. The treatment was done during 100
cycles of fast conductor cooling to liquid nitrogen temperature and further fast heating in a climatic
chamber. The ultimate tensile stress limit and the elongation at failure of metal-matrix
copper-niobium microcomposite, soft and hard copper wires were measured before and after
thermal treatment with a testing machine at room temperature.
Publisher
Trans Tech Publications, Ltd.
Subject
Condensed Matter Physics,General Materials Science,Atomic and Molecular Physics, and Optics
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