TY JOUR TI Ultrasonic Testing of Railway Transport Units with Phased Array Flaw Detectors KW ultrasonic flaw detector KW phased array KW nondestructive testing KW railway transport units KW axle KW wheel KW solebar JO NDT World AU Makarova, T.. AU Meleshko, N.V. AU Zharinov, S.. PY 2015 IS 18 PB LLC SVEN