TITLE

X-RAY DIFFRACTION ANALYSIS OF A CARBONITRIDED LAYER OF ARMCO-IRON

AUTHOR(S)
ZUMBILEV, Ilia A.
PUB. DATE
November 2015
SOURCE
Annals of the Faculty of Engineering Hunedoara - International J;Nov2015, Vol. 13 Issue 4, p131
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Nitriding and carbonitriding are basic processes for surface hardening of details and tools made of iron-carbon alloys, during which either nitrogen only or both carbon and nitrogen are simultaneously introduced into the surface layer. In case of conducting these two processes in conventional gas furnaces or salt baths, it is impossible to regulate in a reliable way the thickness and the composition of the obtained layers, what necessitates varying with the potentials of nitrogen and carbon in the gas mixture or in the liquid medium. The aim of the present work is to study the influence of the gas corgon on the formation of the phase composition of the combined zone after ion carbonitriding of Armco-iron. The conducted roentgenographuc structural analysis of the carbonitrided materials in a medium of ammonia and corgon does not register cementite in the phase composition of the carbonitrided zone. The obtained results also show that the oxide phases - Fe2O3, Fe3O4 - are found in the formed carbonitrided layer.
ACCESSION #
110907296

 

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