Effect of alloying with titanium on the microstructure of an oxide dispersion strengthened 13.5% Cr steel

被引：11
|
作者：
Rogozhkin, S. V. [1 ,2 ]
Bogachev, A. A. [1 ,2 ]
Kirillov, D. I. [1 ,2 ]
Nikitin, A. A. [1 ,2 ]
Orlov, N. N. [1 ,2 ]
Aleev, A. A. [1 ,2 ]
Zaluzhnyi, A. G. [1 ,2 ]
Kozodaev, M. A. [1 ,2 ]
机构：
[1] Alikhanov Inst Theoret & Expt Phys, Kurchatov Inst, Natl Res Ctr, Moscow 117218, Russia
[2] Natl Res Nucl Univ MEPhI, Moscow 115409, Russia
来源：
PHYSICS OF METALS AND METALLOGRAPHY | 2014年 / 115卷 / 12期
基金：
俄罗斯基础研究基金会;
关键词：
transmission electron microscopy; oxide dispersion strengthened steels; alloying additives; structural materials for nuclear engineering; ODS PARTICLES; MECHANICAL-PROPERTIES; BEHAVIOR;
D O I：
10.1134/S0031918X14120060
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Microstructure and phase composition of a high-chromium oxide dispersion strengthened (ODS) steel Fe-13.5% Cr-2% W-0.3% Y2O3 without a titanium additive, as well as alloyed with 0.2, 0.3, and 0.4 wt %Ti, has been studied using transmission electron microscopy. A comparison of the nanoscale state of the steels under investigation with that of an ODS Eurofer steel alloyed with 0.2 wt % V has been carried out. In all of the states found, a high number density of nanosized oxide inclusions has been observed. Upon an increase of the titanium concentration in the steel Fe-13.5% Cr-2% W-0.3% Y2O3 to 0.3 wt %, the average size of the particles decreases, while their number density grows. In this steel, single nanosized (0.1-0.7 mu m) grains or their agglomerates have been found, as well as coarse (6-8 mu m) grains.
引用
收藏
页码：1259 / 1266
页数：8
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