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Secondary hardening of low-alloyed creep-resistant steel welds

P. Mohyla ; Faculty of Mechanical Engineering, VSBTechnical University of Ostrava, Czech Republic
Z. Kubon ; Materials and Metallurgical Research, Ltd., Czech Republic
R. Cep ; Faculty of Mechanical Engineering, VSBTechnical University of Ostrava, Czech Republic
A. Janasek ; Faculty of Mechanical Engineering, VSBTechnical University of Ostrava, Czech Republic
I. Samardžić ; Josip Juraj Strossmayer University of Osijek Mechanical Engineering Faculty in Slavonski Brod, Croatia

Puni tekst: engleski, pdf (975 KB) str. 25-28 preuzimanja: 1.072* citiraj
APA 6th Edition
Mohyla, P., Kubon, Z., Cep, R., Janasek, A. i Samardžić, I. (2014). Secondary hardening of low-alloyed creep-resistant steel welds. Metalurgija, 53 (1), 25-28. Preuzeto s https://hrcak.srce.hr/104366
MLA 8th Edition
Mohyla, P., et al. "Secondary hardening of low-alloyed creep-resistant steel welds." Metalurgija, vol. 53, br. 1, 2014, str. 25-28. https://hrcak.srce.hr/104366. Citirano 19.02.2020.
Chicago 17th Edition
Mohyla, P., Z. Kubon, R. Cep, A. Janasek i I. Samardžić. "Secondary hardening of low-alloyed creep-resistant steel welds." Metalurgija 53, br. 1 (2014): 25-28. https://hrcak.srce.hr/104366
Harvard
Mohyla, P., et al. (2014). 'Secondary hardening of low-alloyed creep-resistant steel welds', Metalurgija, 53(1), str. 25-28. Preuzeto s: https://hrcak.srce.hr/104366 (Datum pristupa: 19.02.2020.)
Vancouver
Mohyla P, Kubon Z, Cep R, Janasek A, Samardžić I. Secondary hardening of low-alloyed creep-resistant steel welds. Metalurgija [Internet]. 2014 [pristupljeno 19.02.2020.];53(1):25-28. Dostupno na: https://hrcak.srce.hr/104366
IEEE
P. Mohyla, Z. Kubon, R. Cep, A. Janasek i I. Samardžić, "Secondary hardening of low-alloyed creep-resistant steel welds", Metalurgija, vol.53, br. 1, str. 25-28, 2014. [Online]. Dostupno na: https://hrcak.srce.hr/104366. [Citirano: 19.02.2020.]

Sažetak
The T24 steel represents the new generation of low-alloyed creep resistant steels with higher creep resistance and lower carbon content. It was designed as prospective material for membrane waterwalls of ultra super critical (USC) power plants, enabling to avoid preheating and post weld heat treatment (PWHT) during welding. However, our investigations concerning secondary hardening of vanadium containing low-alloyed steels show that non-tempered welded joints undergo a significant increase in hardness during exposure to operating temperature. The results then imply that PWHT of T24 steel welds is necessary and this idea is at present supported by the occurrence of several troubles with new installations of USC blocks in Europe.

Ključne riječi
T24 steel; 14MoV6-3 steel; welds; mechanical properties; post weld heat treatment

Hrčak ID: 104366

URI
https://hrcak.srce.hr/104366

Posjeta: 1.268 *