105 SQUIDを用いたレール白色層の非破壊検査(OS7-(2) 材料損傷の機構・実験評価,オーガナイズドセッション)

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タイトル別名
  • 105 Nondestructive Test for White Layers on Rail Using SQUID

抄録

White layers generated on rail surface due to wheel spin or skids are thought to be an important factor of rail cracks, shellings and subsequent breakage after passing tonnage accumulates. It is of great beneficial to rail maintenance to clarify a correlation between them. We have reported that it is able to detect white layers by using Superconducting Quantum Interference Devices (SQUID). In order to run Nondestructive Tests (NDT) in the field, we have developed a noise feedback system to stably operate a SQUID under environmental noise. In this study, we confirmed that the NDT scanner is able to detect white layers.

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