Creep behaviour of U-6%Zr alloy by impression creep technique

被引：10

作者：

Kutty, T. R. G. ^{[1
]}

Kaity, Santu ^{[1
]}

Basak, C. B. ^{[2
]}

Kumar, Arun ^{[1
]}

Singh, R. P. ^{[3
]}

机构：

[1] Bhabha Atom Res Ctr, Radiomet Div, Bombay 400085, Maharashtra, India

[2] Bhabha Atom Res Ctr, Div Mat Sci, Bombay 400085, Maharashtra, India

[3] Bhabha Atom Res Ctr, Nucl Fuels Grp, Bombay 400085, Maharashtra, India

来源：

NUCLEAR ENGINEERING AND DESIGN | 2012年 / 250卷

关键词：

STEADY-STATE CREEP; U-ZR ALLOYS; FAST-REACTOR FUELS; URANIUM-ZIRCONIUM; IRRADIATION BEHAVIOR; DISLOCATION CLIMB; SINGLE-CRYSTALS; METALLIC FUELS; DELTA-PHASE; INTERDIFFUSION;

D O I：

10.1016/j.nucengdes.2012.05.013

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

In this study, the impression creep behaviour of U-6 wt.%Zr alloy was studied in the temperature range 550-650 degrees C at different stresses. The velocity of the punch at different stresses and temperatures was evaluated for the above alloy. The creep curves at 575 degrees C showed a wavy phenomenon at all stresses. The stress exponents and thermal activation parameters of the above alloy were determined. A power law behaviour is displayed in the temperature range 600-650 degrees C with the stress exponents range from 8 to 8.4. The activation enthalpy for the U-6%Zr alloy was found to be independent of stress with an average value of 157 kJ/mol. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：125 / 133

页数：9

共 51 条

[1]

Adda Y., 1960, REV METALL, V57, P551

[2] STABILITY AND STRUCTURE OF THE DELTA-PHASE OF THE U-ZR ALLOYS [J].

AKABORI, M ;

ITOH, A ;

OGAWA, T ;

KOBAYASHI, F ;

SUZUKI, Y .

JOURNAL OF NUCLEAR MATERIALS, 1992, 188 :249-254

[3] Interdiffusion in the U-Zr system at δ-phase compositions [J].

Akabori, M ;

Itoh, A ;

Ogawa, T ;

Ogata, T .

JOURNAL OF ALLOYS AND COMPOUNDS, 1998, 271 :597-601

[4]

[Anonymous], 1957, REV DEMETALL, DOI DOI 10.1051/METAL/195754080597

[5] A MODEL FOR STEADY STATE CREEP BASED ON MOTION OF JOGGED SCREW DISLOCATIONS [J].

BARRETT, CR ;

NIX, WD .

ACTA METALLURGICA, 1965, 13 (12) :1247-&

[6] Microstructural evaluation of U-rich U-Zr alloys under near-equilibrium condition [J].

Basak, Chandra Bhanu .

JOURNAL OF NUCLEAR MATERIALS, 2011, 416 (03) :280-287

[7] Phase transformations in U-2 wt% Zr alloy [J].

Basak, Chandra Bhanu ;

Keswani, R. ;

Prasad, G. J. ;

Kamath, H. S. ;

Prabhu, N. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 471 (1-2) :544-552

[8] An evaluation of the properties of As-cast U-rich U-Zr alloys [J].

Basak, Chandrabhanu ;

Prasad, G. J. ;

Kamath, H. S. ;

Prabhu, N. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 480 (02) :857-862

[9]

BILLONE MC, 1987, FUEL CREEP MODEL LIF

[10]

Cadek J, 1998, MAT SCI ENG A-STRUCT, V246, P252, DOI 10.1016/S0921-5093(97)00694-1

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