Elevated temperature micro-impact testing of TiAlSiN coatings produced by physical vapour deposition
作者： Ben D. Beake , Andrew Bird , Luis Isern , Jose L. Endrino , Feng Jiang
DOI: 10.1016/J.TSF.2019.06.008
关键词: Cemented carbide 、 Substrate (electronics) 、 Materials science 、 Fracture (geology) 、 Atmospheric temperature range 、 Impact testing 、 Composite material 、 Nanoindentation 、 Softening 、 Coating
摘要: Abstract A high temperature micro-impact test has been developed to assess the fracture resistance of hard coatings under repetitive dynamic strain rate loading at elevated temperatures. The was used study dependence micro-scale impact fatigue TiAlSiN on cemented carbide 25–600 °C. Nanoindentation and micro-scratch tests were also performed over same range. results dependent load, coating microstructure, substrate mechanical properties, their dependence. At higher temperatures there a change in failure mechanism from fracture-dominated plasticity-dominated behaviour cyclic conditions. This attributed softening.
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