Effects of the thickness of Ti buffer layer on the mechanical properties of TiN coatings

The Study of Selected Properties of Ti EB PVD Coating Deposited Onto Inner Tube Surface at Low Temperature

“…The maximum value is in agreement with [13] and also most of the measured values agree with those reported in [11][12][13][14][15]17]. …”

“…For the hardness of the Ti coating of each sample the maximum measured value was taken and values from 2.0 GPa to 8.5 GPa. The result is 3 to 4 times higher than in [4][5][6]8,9], twice as high as that in [14,15], in agreement with [12,13,17], 50% lower than in [11] and 100% lower than those reported in [9,10]. The lower values found in this study could be caused by lower density of columns (Fig.…”

“…Properties of Ti coatings have been studied extensively [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. Ti coatings have low hardness, high COF that is why they are not used as functional layers.…”

“…Ti coatings have low hardness, high COF that is why they are not used as functional layers. On the other hand Ti coatings have good adhesion and suitable thermal expansion which makes them good materials for interlayer used to improve adhesion of the functional layers [1,2,8,[11][12][13].…”

Microstructure and mechanical properties of Ti/AlTiN/Ti-diamondlike carbon composite coatings on steel

“…Several papers demonstrated that a metal layer, 0.5-1.5 mm thick helps to accommodate the coating's residual stresses and allows for thicker coatings to be deposited, with significant improvements in toughness, adhesion, and impact resistance. 23,24 Figure 1(a) also shows a typical columnar microstructure of the Ti interlayer, the AlTiN layer, and a Ti/AlTiN superlattice with an average grain size of about 50-80 nm. Interfaces at Ti/substrate and AlTiN/ DLC layers are clearly defined in Fig.…”