Effects of the experimental parameters on the preferred orientation of chemically vapor deposited TiC on cemented carbides

Abstract
The relation between the preferred orientation, microhardness, and microstructure of TiC coatings was studied for various deposition conditions. The coatings deposited at 1000 °C showed 〈111〉 preferred orientation and finer equiaxed grains, resulting in high microhardness values. High microhardness values were also obtained with a decrease in total pressure. Coatings deposited above 1100 °C showed 〈110〉 preferred orientation and coarser elongated grains which results in lower microhardness values.