Effect of Zirconium on the Microstructure and Mechanical Properties of an Al-Alloyed ODS Steel Consolidated by FAHP

被引：13
|
作者：
Garcia-Junceda, Andrea [1 ]
Garcia-Rodriguez, Nerea [2 ]
Campos, Monica [2 ]
Carton-Cordero, Marta [1 ]
Torralba, Jose Manuel [1 ,2 ]
机构：
[1] IMDEA Mat Inst, Getafe 28906, Spain
[2] Univ Carlos III Madrid, Dept Mat Sci & Engn, Madrid 28911, Spain
来源：
JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2015年 / 98卷 / 11期
关键词：
THERMAL-STABILITY; FERRITIC STEELS; IRON-POWDER; BEHAVIOR; NANOCRYSTALLINE; DUCTILITY; NB;
D O I：
10.1111/jace.13691
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
An oxide dispersion strengthened (ODS) ferritic steel with nominal composition Fe-14Cr-5Al-3W-0.4Ti-0.25Y(2)O(3)-0.6ZrO(2) was produced by mechanical alloying (MA), based on a prealloyed grade Fe-14Cr-5Al-3W steel with the addition of Ti element, Y2O3 and ZrO2, and subsequent consolidation by means of field assisted hot pressing (FAHP). The microstructure and the mechanical properties were analyzed and compared with a reference material with nominal composition Fe-14Cr-5Al-3W-0.4Ti-0.25Y(2)O(3). The addition of zirconia increased the volume fraction of the smallest and equiaxed ferritic nano-grains and decreased the quantity of larger aluminum nano-oxides within the ferritic matrix, promoting the formation of fine zirconium nano-oxides and leading to the enhancement of the mechanical properties of the alloy.
引用
收藏
页码：3582 / 3587
页数：6
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