Formation of a corrosion-resistant layer on steel by reaction with a Si3N4-Al2O3 composite under the conditions of light-thermal treatment

被引：1
|
作者：
Podchernyaeva, IA [1 ]
Lavrenko, VA [1 ]
Schvets, VA [1 ]
Frolov, AA [1 ]
Teplenko, MA [1 ]
机构：
[1] Natl Acad Sci Ukraine, Inst Problems Mat Sci, Kiev, Ukraine
来源：
POWDER METALLURGY AND METAL CERAMICS | 2001年 / 40卷 / 1-2期
关键词：
light-thermal treatment; alloyed layer; convective flux; myllite; interaction between particles; corrosion resistance;
D O I：
10.1023/A:1011303704917
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：
The formation of a surface layer on low-alloyed steel during light-thermal treatment with a composite material based on Si3N4 - Al2O3 was investigated. The working surfaces were studied using metallographic, x-ray diffraction, and electron-probe microanalysis. It was found that the corrosion-resistant phases Al2SiO5, (Fe, Cr)(2)O-3 (Cr, Al)(2)O-3, and NiCrO4 formed in the alloyed layer, increasing its microhardness by 2-5 times and its corrosion resistance in sea water by more than two orders of magnitude.
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页码：44 / 48
页数：5
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