... to solidification cracking or solid-state cracking depending on welding conditions and dilution effects with dissimilar metals. Moreover, the presence of large solidification grains, typical of nickel alloy weld metals, makes ultrasonic examination of the weldment difficult. Magnetic stirring of the nickel alloy...

...’ thickness phenomenon in dryer flange and the convex transition segment were discovered. The ultrasonic examination characteristics of the cast iron dryer was analyzed, the sensitivity of various sensors were carried on. The small angle double crystal longitudinal wave sensor can examine the Φ3 equivalent...