( P171-P0264) Property Evaluation of Ti-based Multi-Component alloys for AIP Coating target Application by Pulsed Current Activated Sintering Method

摘要

TiN is know as a hard coating material but it gives limited oxidation resistance at high temperatures duringcutting preocss. In comparison with TiN, TiAlN coatings have better oxidation resistance and remain stable athigher temperature. TiAlSiN has an oxidation temperature of 1100°C, whereas TiN and TiAlN begins to oxidizeat 500 and 700°C, respectively. In general, dislocation with some mobility, microcracks and other structuraldefects of grain boundaries, formed during deposition, results in decrease of strength and hardness of materials.Materials, in which nanocrystalline TiAlN embedded into amorphous Si3N4 matrix, can prevent dislocationwithin nanocrystals from sliding through amorphous grain boundary matrix even under highly applied stress.