Fracture toughness of irradiated Zr-2.5Nb pressure tube from Indian PHWR

被引：7

作者：

Shah, Priti Kotak ^{[1
]}

Dubey, J. S. ^{[1
]}

Shriwastaw, R. S. ^{[1
]}

Dhotre, M. P. ^{[1
]}

Bhandekar, A. ^{[1
]}

Pandit, K. M. ^{[1
]}

Anantharaman, S. ^{[1
]}

Singh, R. N. ^{[2
]}

Chakravartty, J. K. ^{[2
]}

机构：

[1] Bhabha Atom Res Ctr, Post Irradiat Examinat Div, Bombay 400085, Maharashtra, India

[2] Bhabha Atom Res Ctr, Mech Met Div, Bombay 400085, Maharashtra, India

来源：

JOURNAL OF NUCLEAR MATERIALS | 2015年 / 458卷

关键词：

D O I：

10.1016/j.jnucmat.2014.12.066

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Fracture toughness of irradiated Zr-2.5Nb alloy pressure tube, fabricated by the cold pilgering and stress relieving route, was evaluated using disk compact tension type specimens. These specimens were punched out from the irradiated pressure tube (S-07), which was in service for about 8 effective full power years of reactor operation in the Kakrapar Atomic Power Station-2 (KAPS-2). The tests were carried out remotely inside a lead shielded enclosure. Crack growth during the test was measured using the direct current potential drop technique. The irradiated pressure tube showed low fracture toughness at 25 degrees C. The fracture toughness increased with increase in temperature up to 250 degrees C but was practically unaffected with further increase in temperature up to 300 degrees C. This paper discusses the fracture behavior of irradiated Indian pressure tube material and compares it with other data available. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：319 / 325

页数：7

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