Ultrasonic Rail Flaw Testing Parameters in Extreme Cold Temperature

Minor defects or anomalies in rails can cause breakages when stressed by factors such as increased train tonnage or cold weather conditions. To monitor these defects, railroads are primarily reliant on ultrasonic testing (UT). This report evaluated the effectiveness of UT by measuring the effects of extreme cold (0°C to -40°C) on the refraction angle, velocity, and density of ultrasound in couplants and rail steel.

 

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