Naslov
Inspection of Surface Pipes Using Ultrasonic Method
(Inspection of Surface Pipes using Ultrasonic Method)

Autori
Gojić, Mirko ; Belošević, Zvonko ; Kožuh, Stjepan

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Conference Proceedings of the 6th International Conference of the Slovenian Society for Non-Destructive Testing titled Previous Experience and Current Inovations in Non-Destructive Testing / Grum Janez - Portorož : The Slovenian Society for Non-Destructive Testing, 2001, 37-44

Skup
The 6th International Conference of the Slovenian Society for Non-Destructive Testing titled Previous Experience and Current Inovations in Non-Destructive Testing

Mjesto i datum
Portorož, Slovenija, 13.09.2001. - 15.09.2001

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
steel; ultrasonic method; mechanical properties; microstructure

Sažetak
In this work three heats of St 52.3 grade steel pipes were analysed. Mechanical properties and microstructure of the cold-rolled pipes around defects were tested. It was found that after annealing of pipes at 540-560oC the desirable mechanical properties were obtained. After heat treatment all pipes were controlled by ultrasonic method. Longitudinal and transversal defects were controlled on the outside and the inside surface pipes. On outside surface pipes the longitudinal defects in the form of shells were detected. Observed shells are probably result of the hot rolling of pipes. Metallographic analysis of samples showed that around shells the non-metallic inclusions were presented.

Izvorni jezik
Engleski

Znanstvena područja
Metalurgija

POVEZANOST RADA