For the first time, formation of cubic boron nitride (c-BN), besides Fe2B and iron nitrides, was detected in boronitride coating, which was applied via a duplex diffusional surface treatment. Boronitride coating was applied on AISI 1045 steel substrates via duplex treatment of pack boriding and plasma nitriding (B-PN). Scanning electron microscope (SEM), X-ray diffractometer (XRD), and pin-on-disk wear test were utilized to evaluate microstructures, phases, and wear properties of the coatings. The surface of the as-coated sample exhibited a pebblelike and compact structure, and the cross-sectional morphology of the coatings showed a saw-tooth interface with substrate. Duplex treated sample revealed superior wear resistance in comparison with the borided one.
Duplex Surface Treatment of AISI 1045 Steel Via Pack Boriding and Plasma Nitriding: Characterization and Tribological Studies
Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received April 16, 2017; final manuscript received June 28, 2017; published online September 26, 2017. Assoc. Editor: Nuria Espallargas.
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Habibolahzadeh, A., and Haftlang, F. (September 26, 2017). "Duplex Surface Treatment of AISI 1045 Steel Via Pack Boriding and Plasma Nitriding: Characterization and Tribological Studies." ASME. J. Tribol. March 2018; 140(2): 021602. https://doi.org/10.1115/1.4037465
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