Tribological performance of α-Fe(Cr)-Fe2B-FeB and α-Fe(Cr)-h-BN coatings obtained by laser melting
作者： L. Avril , B. Courant , J.-J. Hantzpergue
DOI: 10.1016/J.WEAR.2005.04.012
关键词: Boron 、 Tribometer 、 Boron nitride 、 Powder metallurgy 、 Ceramic 、 Nanoindentation 、 Metallurgy 、 Indentation hardness 、 Materials science 、 Coating
摘要: Abstract α-Fe(Cr)-h-BN and α-Fe(Cr)-Fe 2 B-FeB coatings on X30Cr13 stainless steel are synthesized by laser melting with incorporation of hexagonal boron nitride, or alloying boron. The additive powders deposited before pulsed irradiation Nd-YAG beam. solidification structures the obtained investigated optical microscopy X-ray diffractometry. mechanical properties nanoindentation tribological behaviour is characterized pin-on-disc tribometer, under dry-sliding conditions different loads a temperature range 25–500 °C. h-BN-α-Fe(Cr) Fe B-α-Fe(Cr) have average hardnesses 10.0 14.5 GPa, respectively, while hardness untreated 4.2 GPa. In comparison this steel, sliding contact ceramic (ruby) such coating shows lower coefficient friction definitively better wear resistance.
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