Abstract: In one aspect, articles are described comprising wear resistant coatings employing composite architectures including refractory layers of varying compositions and phases. Briefly, a coated article comprises a substrate and a coating deposited by chemical vapor deposition (CVD) adhered to the substrate, the coating comprising an inner refractory layer comprising M1-xAlxN wherein x?0.7 and M is titanium, chromium or zirconium and an outer zirconia layer or outer multiphase refractory layer comprising an alumina phase and an oxide phase comprising at least one Group IVB metal, wherein the M1-xAlxN has less than 15 weight percent hexagonal phase.

Abstract: In one aspect, articles are described comprising wear resistant coatings employing composite architectures including refractory layers of varying compositions and phases. Briefly, a coated article comprises a substrate and a coating deposited by chemical vapor deposition (CVD) adhered to the substrate, the coating comprising an inner refractory layer comprising M1-xAlxN wherein x?0.7 and M is titanium, chromium or zirconium and an outer zirconia layer or outer multiphase refractory layer comprising an alumina phase and an oxide phase comprising at least one Group IVB metal, wherein the M1-xAlxN has less than 15 weight percent hexagonal phase.

Abstract: A coated cutting insert for a chipforming material removal operation wherein the coated insert has a substrate and a coating scheme on the substrate. The coating scheme includes a CVD transition coating layer. The coating scheme further includes a CVD multi-layered coating scheme having a plurality of coating sets. Each one of the coating sets has an aluminum oxide coating layer and a nitrogen-containing coating layer.

Abstract: A CVD-coated article has a substrate with a substrate surface and a CVD coating scheme on the substrate surface. The coating scheme includes a coating layer of Ti1-xMex nitride wherein Me is selected from the group of zirconium or hafnium or a mixture of zirconium and hafnium, and x equals between about 0.1 and about 0.9. The coating layer of Ti1-xMex nitride has a microhardness equal to between about 2300 HV0.05 and about 2600 HV0.05, a face centered cubic crystal structure, and a lattice constant equal to between about 0.427 nanometers and about 0.453 nanometers.

Abstract: A coated cutting insert and a method for making the same. The coated cutting insert has a substrate with a substrate surface. There is a backing coating scheme on the substrate surface, and a TiAl2O3 coating layer wherein the TiAl2O3 coating layer is deposited using chemical vapor deposition from a gaseous composition including AiCl3, H2, TiCl4, CO2 and HCl.

Abstract: A coated cutting insert for a chipforming material removal operation wherein the coated insert has a substrate and a coating scheme on the substrate. The coating scheme includes a CVD transition coating layer. The coating scheme further includes a CVD multi-layered coating scheme having a plurality of coating sets. Each one of the coating sets has an aluminum oxide coating layer and a nitrogen-containing coating layer.

Abstract: A CVD-coated article has a substrate with a substrate surface and a CVD coating scheme on the substrate surface. The coating scheme includes a coating layer of Ti1-xMex nitride wherein Me is selected from the group of zirconium or hafnium or a mixture of zirconium and hafnium, and x equals between about 0.1 and about 0.9. The coating layer of Ti1-xMex nitride has a microhardness equal to between about 2300 HV0.05 and about 2600 HV0.05, a face centered cubic crystal structure, and a lattice constant equal to between about 0.427 nanometers and about 0.453 nanometers.

Abstract: A coated cutting insert and a method for making the same. The coated cutting insert has a substrate with a substrate surface. There is a backing coating scheme on the substrate surface, and a TiAl2O3 coating layer wherein the TiAl2O3 coating layer is deposited using chemical vapor deposition from a gaseous composition including AiCl3, H2, TiCl4, CO2 and HCl.

Abstract: A coated cutting insert and a method for making the same. The coated cutting insert has a substrate with a substrate surface. There is a backing coating scheme on the substrate surface, and a TiAl2O3 coating layer wherein the TiAl2O3 coating layer is deposited using chemical vapor deposition from a gaseous composition including AlCl3, H2, TiCl4, CO2 and HCl.

Abstract: A coated cutting insert and a method for making the same. The coated cutting insert has a substrate with a substrate surface. There is a backing coating scheme on the substrate surface, and a TiAl2O3 coating layer wherein the TiAl2O3 coating layer is deposited using chemical vapor deposition from a gaseous composition including AlCl3, H2, TiCl4, CO2 and HCl.