Use of ball-cratering wear test and nanoscratching test to compare the wear resistance of homogeneous and functionally graded titanium nitride thin films - Silva, Felipe Carneiro da; Macedo, Marcelo de Matos; Miscione, Juan Manuel Costa; Fontana, Luis César; Sagás, Julio Cesar; Cozza, Ronaldo Câmara; Schön, Cláudio Geraldo (Journal of Materials Research and Technology, 2023)