순동 전차선에 대한 실온에서의 크립특성 연구

초록

The aim of this study is to present the effect of elastically pre-strain on the creep behavior at room temperature with the hard drawn pure copper under uniaxial tension. The test results of creep transients associated with stress reductions are analyzed. After the stress of 218MPa and 164MPa are applied for 0.5 hours for each specimen, and then the creep behavior are examined under the stress of 109MPa at room temperature. The test result and analysis show that the more pre-strained hard drawn pure copper has the lower strain rate than non pre-strained one or less pre-strained one. However, the times to reach a steady state creep rate seem to be almost same