Naslov
Threshold stress of heat treated low alloy Cr-Mo steel

Autori
Gojić, Mirko ; Balenović, Marijan

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

Izvornik
Proceedings of Intenational Scientific Conference on the Occasion of the 35th Anniversary of the Department of Ferrous and Foundry Metallurgy Metallurgical Faculty Technical University Košice / - Košice : Metallurgical Faculty of Technical University Košice, 1994, 85-92

Skup
Intenational Scientific Conference on the Occasion of the 35th Anniversary of the Department of Ferrous and Foundry Metallurgy Metallurgical Faculty Technical University Košice

Mjesto i datum
Košice, Slovačka, 21.06.1994. - 23.06.1994

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
low alloyed steel, API degree, stress corrosion, heat treatment, threshold stress

Sažetak
In this work the results of low alloyed Cr-Mo steel microalloyed with niobium are presented. After quenching at 870oC (30 min.) and air tempering at 720oC (60 min.) of tubings according to API 5CT Standard corresponding to API grade C- 95 have been obtained. Their corrosion resistance determined by constant load method is high and has threshold stress value of 75% yield strength (541 MPa). Specimens whic came through 720 hour test in NACE solution and which were subsequently tested by fractographic have shown a high resistance to SSCC because they have not failured in spite of absorption of a remarkable quantity of hydrogen whic is proved by absoutly brittle transgranular cleavage fracture.

Izvorni jezik
Engleski

Znanstvena područja
Metalurgija

POVEZANOST RADA