CREEP TRANSIENTS IN A NUCLEAR-GRADE ODS FERRITIC STEEL

被引：11

作者：

EVANS, RW ^{[1
]}

PRESTON, J ^{[1
]}

WILSHIRE, B ^{[1
]}

LITTLE, EA ^{[1
]}

机构：

[1] HARWELL LAB,DIV MAT & CHEM,OXFORD OX11 0RA,ENGLAND

来源：

JOURNAL OF NUCLEAR MATERIALS | 1992年 / 195卷 / 1-2期

关键词：

D O I：

10.1016/0022-3115(92)90359-S

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

Inflexions are detected in the steady state creep regime of a nuclear-grade 13% Cr oxide-dispersion-strengthened ferritic alloy when tested at 700-725-degrees-C in an annealed condition. This anomalous response can be suppressed by using a two-stage annealing plus ageing heat treatment designed to fully precipitate a stable chi-phase intermetallic. Mechanisms directly related to observed creep-induced precipitation of chi-phase cannot account for the creep transients, but a tentative explanation based on localized grain boundary migration is in accord with the experimental observations.

引用

页码：24 / 28

页数：5

共 14 条

[1]

MICROSTRUCTURAL EVOLUTION OF AN OXIDE DISPERSION STRENGTHENED STEEL UNDER CHARGED-PARTICLE IRRADIATION [J].