Microstructural and Textural Evolution in Heat Treated Zr-2.5% Nb Pressure Tube Material Subjected to Dilatometric Studies

被引：3

作者：

Kulkarni, R. V. ^{[1
]}

Neogy, S. ^{[2
]}

Rath, B. N. ^{[1
]}

Manikrishna, K. ^{[2
]}

Srivastava, D. ^{[2
]}

Saibaba, N. ^{[3
]}

Samajdar, I. ^{[4
]}

Ramadasan, E. ^{[1
]}

Dey, G. K. ^{[2
]}

Anatharaman, S. ^{[1
]}

机构：

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

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

[3] Nucl Fuel Complex, Hyderabad, Andhra Pradesh, India

[4] IIT, Bombay, Maharashtra, India

来源：

TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS | 2011年 / 64卷 / 4-5期

关键词：

beta-transus; Zr-2.5%Nb; Dilatogram; Thermo-mechanical treatment; Textural changes; Electron microscopy; ZIRCONIUM ALLOY; IN-REACTOR; DEFORMATION; TRANSFORMATION;

D O I：

10.1007/s12666-011-0104-7

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

beta-transus boundary for the Zr-2.5%Nb alloy containing 1137 ppmw of O and 650 ppmw of Fe was established using quenching dilatometry technique. The solid cylindrical samples of the alloy were beta homogenised at 1063A degrees C and then quenched at different rates between 0.06 and 200A degrees C/s using the quenching dilatometer. The cooling part of the dilatograms were analysed to establish continuous cooling beta transus boundary. Based on this beta transus boundary heat treatment experiments were carried out on the alloy samples by holding at temperatures 883, 870, 863, 840A degrees C in the alpha A + beta(Zr) phase field and then quenching at different rates between 0.5 and 100A degrees C/s to study the microstructural evolution and textural changes using electron microscopy techniques. An attempt has been made to correlate the transformation characteristics with the dilatograms recorded and the microstructural and textural changes have been ascertained.

引用

页码：395 / 399

页数：5

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