Naslov
Microstructural Changes as a Result of Hydrogen Gradient in API Pipeline

Autori
Malina, Jadranka ; Malina, Marijan ; Novosel-Radović, Vjera ; Marjanović, Tihana

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, stručni

Izvornik
Metalurgija, 39,(2000)3 / Mamuzić, Ilija - Zagreb : Hrvatsko metalurško društvo, 2000

Skup
4th International Symposium of Croatian metallurgical Society - SHMD 2000 ,Materijali i metalurgija

Mjesto i datum
Opatija, Hrvatska, 25.06.2000. - 29.06.2000

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
microstructural changes; hydrogen gradient; API pipeline

Sažetak
Absorption of hydrogen in steel structures is a corrosion phenomenon tightly related to the microstructure. In this study accelerated corrosion tests and XRD analysis of ferrite - pearlitic API pipeline steels were performed in order to examine hydrogen embrittlement resistance. Under the influence of electrolytically established hydrogen gradient in steel, the significant microstructural parameters have been changed: higher dislocation density and the remarcable increase of residual stresses were obtained. It was shown that steels having the microstructure capable of better whitstanding to hydrogen induced microstrains are most resistant to HE.

Izvorni jezik
Engleski

Znanstvena područja
Metalurgija

POVEZANOST RADA