Wear of Mo- and W-alloyed TiAlN coatings during high-speed turning of stainless steel

This study investigates the wear of W- and Mo-alloyed Ti 1-x-y Al x Me y N coatings (Me = W, Mo) with ? 0.55 0.10 during high-speed turning stainless steel 316L. A difference in crater rate was observed between TiAlN coatings. The behavior sliding area is characterized detail for two different regions by scanning transmission electron microscopy energy dispersive X-ray spectroscopy. thin adhered layer constituted elements from workpiece material on top all coatings, followed diffusion species 316L into Co cemented carbide substrate also diffuses through column boundaries coating. temperature varies area. presence Mo or W retards spinodal decomposition formation h-AlN as compared to leading lower alloyed • Wear investigated Two after 316 L are TEM EDS Temperature microstructural changes due Presence retard Lower