Processing and Excellent Oxidation Resistance of Nanocrystalline Fe-Cr Alloys

被引：0
|
作者：
Gupta, Rajeev K. [1 ]
Mahesh, B. V. [1 ]
Raman, R. K. Singh [1 ,2 ]
Koch, Carl C. [3 ]
机构：
[1] Monash Univ, Dept Mech & Aerosp Engn, Clayton, Vic 3800, Australia
[2] Monash Univ, Dept Chem Engn, Clayton, Vic 3800, Australia
[3] North Carolina State Univ, Dept Mat Sci & Engn, Raleigh, NC 27695 USA
来源：
PRICM 7, PTS 1-3 | 2010年 / 654-656卷
关键词：
Oxidation; nanocrystalline Fe-Cr alloys; ball milling; consolidation; secondary ion mass spectrometry (SIMS); 2.25CR-1MO STEEL;
D O I：
10.4028/www.scientific.net/MSF.654-656.1122
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：
Nanocrystalline and microcrystalline Fe-10Cr alloys were prepared by high energy ball milling followed by compaction and sintering, and then oxidized in air for 52 hours at 400 degrees C. The oxidation resistance of nanocrystalline Fe-10Cr alloy as determined by measuring the weight gain after regular time intervals was compared with that of the microcrystalline alloy of same chemical composition (also prepared by the same processing route and oxidized under identical conditions). Oxidation resistance of nanocrystalline Fe10Cr alloy was found to be in excess of an order of magnitude superior than that of microcrystalline Fe10Cr alloy. The paper also presents results of secondary ion mass spectrometry of oxidized samples of nanocrystalline and microcrystalline Fe-Cr alloys, evidencing the formation of a more protective oxide scale in the nanocrystalline alloy.
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页码：1122 / +
页数：2
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