Ductile fracture behaviour of primary heat transport piping material

Tarafder, S and Sivaprasad, S and Ray, K K (2007) Ductile fracture behaviour of primary heat transport piping material. Materials Science and Technology, 23 (11). pp. 1285-1293.

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The fracture characteristics of pressure vessel materials must be understood well to implement leak-before-break concepts in the design of pressure vessels. For the construction of primary heat transport piping of Indian pressurised heavy water reactors, SA333 Grade 6 steel is employed, and it is therefore important to understand the fracture behaviour of this steel. The present paper presents the ductile fracture characteristics of SA333 steel at elevated temperatures encompassing the service temperature of the steel, the fracture behaviour under simulated seismic loading and the effect of variation of crack tip constraint on the fracture toughness of the material. Fractographic observations have been carried out to understand the origin of the high level of toughness of the material.

Item Type:Article
Official URL/DOI:http://10.1179/174328407X213008
Uncontrolled Keywords:SA333 steel; Monotonic J–R curve; Cyclic J–R curve; Constraint effect; Stretch zone
Divisions:Material Science and Technology
ID Code:1332
Deposited On:28 Jul 2010 15:49
Last Modified:17 Feb 2012 16:45

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