Kinetics of Nitrogen Diffusion in Granular Manganese

Kinetics of Nitrogen Diffusion in Granular Manganese

The kinetics and the influence of time on granular manganese nitriding were studied by means of a vacuum resistance furnace,X-ray diffraction technique,and LECO TC-436 oxygen/nitrogen determinator.The longer the nitriding time,the more the nitrogen pickup.Except for a trace of oxide MnO that develop...

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Veröffentlicht in:Journal of iron and steel research, international international, 2008, Vol.15 (1), p.85-88
Hauptverfasser: ZHANG, Jin-zhu, XU, Chu-shao, ZHAO, Yue-ping
Format: Artikel
Sprache:eng
Schlagworte:
Applied and Technical Physics
Engineering
granular manganese
kinetics
Machines
Manufacturing
Materials Engineering
Materials Science
Metallic Materials
nitridation
nitride
Physical Chemistry
Processes
冶金技术
动力学
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Zusammenfassung:The kinetics and the influence of time on granular manganese nitriding were studied by means of a vacuum resistance furnace,X-ray diffraction technique,and LECO TC-436 oxygen/nitrogen determinator.The longer the nitriding time,the more the nitrogen pickup.Except for a trace of oxide MnO that developed,the metal manganese could thoroughly be nitrided to form Mn4N and a little ζ-phase（the stoichiometric components as Mn2N）with the nitriding time lasting.A kinetic model is developed to reveal the nitriding situation and agrees well with the experimental results.
ISSN:1006-706X
2210-3988
DOI:10.1016/S1006-706X(08)60018-7