Fracture toughness of 19Mn5 steel pipe welded joints materials

• Autorzy: Daunys M. , Krasauskas P. , Dundulis R.
• Języki publikacji: EN

Abstrakty

EN

This paper presents an investigation of Ignalina NPP reactor’s main circulated circuit (MCC) pipeline welded joints materials fracture toughness properties. Standard compact C(T)-1T specimens containing “V” and “K” – type welds were cut off from the various MCC pipe’s zones, produced from the 19Mn5 steel pipe and welded by electrodes UTP-068HH, YONI-13/55 and CT-36. Critical J – integraf JIc values were defined Rusing J–R curve test method, which results on determination of J – integral values as a function of crack extension ?a. The investigation enables to calculate critical crack length ?amax and ?ac sizes and J – integral JIc, Jmax and JPmax values, which are used to predict safe service lifetime of the cracked pipelines.

Słowa kluczowe

EN

fracture; strength; steel pipes

PL

pękanie; wytrzymałość; stal

• Wydawca: Oficyna Wydawnicza Politechniki Białostockiej
• Czasopismo: Acta Mechanica et Automatica
• Rocznik: 2009
• Tom: Vol. 3, no. 4
• Strony: 24--27
• Opis fizyczny: Bibliogr. 4 poz., Wykr.

Twórcy

autor

Daunys M.

autor

Krasauskas P.

autor

Dundulis R.

Bibliografia

• 1. Anderson T. L. (1991), Fracture Mechanics. Fundamentals and Applications, CRC Press, Boca Raton, Ann Arbor, Boston.
• 2. Daunys M., Krasauskas P., Dundulis R. (2005), Fracture Toughness of Welded Joints Materials for Main Pipelines at Ignalina NPP, Nuclear Engineering and Design, Elsevier, Lausanne, Vol. 235, Issue 7, 747-760.
• 3. Mechanical test methods of metals. Determination of fracture toughness characteristics under static loading (in Russian), GOST 25.506-85, (1985).
• 4. Standard Test Method for Measurement of Fracture Toughness, ASTM E1820-08, (2008).