作者: Ben D. Beake , Luis Isern , Jose L. Endrino , German S. Fox-Rabinovich
DOI: 10.1016/J.WEAR.2018.11.010
关键词: Nano- 、 Impact test 、 Materials science 、 Nitride 、 Microstructure 、 Fracture (geology) 、 Cemented carbide 、 Impact testing 、 Composite material 、 Coating
摘要: Abstract A novel micro-scale repetitive impact test has been developed to assess the fracture resistance of hard coatings under dynamic high strain rate loading. It is capable significantly higher energies than in nano-impact test. retains intrinsic depth-sensing capability enabling progression damage process be monitored throughout test, combined with opportunity use indenters less sharp geometry and still cause rapid coating failure. The micro-impact used study fatigue Al-rich PVD nitride on cemented carbide. mechanism investigated nano- tests. Coating response was highly load-dependent. Ti0.25Al0.65Cr0.1N H3/E2 performed best micro- tests although it not hardest studied. role mechanical properties, microstructure thickness behaviour performance cutting discussed.