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Journal of Materials Engineering and Performance

Erschienen in:

01.07.2013

Development of Nitrogen-Hydrocarbon Atmospheric Carburizing and Process Control Methods

verfasst von: Xiaolan Wang, Zbigniew Zurecki, Richard D. Sisson Jr.

Erschienen in: Journal of Materials Engineering and Performance | Ausgabe 7/2013

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Abstract

Atmospheric pressure carburizing and neutral carbon potential annealing in nitrogen containing small additions of hydrocarbon gases can offer cost and steel surface quality alternatives to the comparable, endothermic atmosphere, or vacuum operations. An experimental program was conducted for refining real-time process control methods in carburizing of AISI 8620 steel under N₂-CH₄, N₂-C₃H₈ blends containing <5 vol.% of hydrocarbon gas at 900 and 930 °C. Multiple types of gas analyzers were used to monitor residual concentrations of H₂, CO, CO₂, H₂O, O₂, CH₄, C₃H₈, and other hydrocarbons inside furnace. A modified shim stock technique was additionally evaluated for correlation with gas analysis and diffusional modeling using measured carbon mass flux values (g/cm²/s). Results of this evaluation work are presented.

Vorheriger Artikel Heat Transfer Properties of a Series of Oxidized and Unoxidized Vegetable Oils in Comparison with Petroleum Oil-Based Quenchants

Nächster Artikel Modeling of Carbon Concentration Profile Development During Both Atmosphere and Low Pressure Carburizing Processes

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Titel: Development of Nitrogen-Hydrocarbon Atmospheric Carburizing and Process Control Methods
verfasst von: Xiaolan Wang
Zbigniew Zurecki
Richard D. Sisson Jr.
Publikationsdatum: 01.07.2013
Verlag: Springer US
Erschienen in: Journal of Materials Engineering and Performance / Ausgabe 7/2013
Print ISSN: 1059-9495
Elektronische ISSN: 1544-1024
DOI: https://doi.org/10.1007/s11665-012-0294-0

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