Experimental Investigation and Parameter Optimization of Al2O3-40% TiO2 Atmospheric Plasma Spray Coating on SS316 Steel Substrate

Erosion studies of plasma sprayed WC-12%Co, Cr3C2-25%NiCr, 80%Ni-20%Cr, 87%Al2O3-13%TiO2 coatings on ASTM A36 steel

“…Thus, by enhancing the erosion properties of blades, its surface life can be extended. For providing the protective measures on blade surface, coating by plasma spraying method is an efficient and economic technique [1][2][3][4][5].…”

Thermal And Chemical Resistance Of Plasma Sprayed Al2o3, Al2o3-Tio2 Coatings

“…Such wide applications are related to the high hardness, chemical inertness and low cost of material. To improve coating qualities, such as brittleness and friction coefficient reduction, increase of fracture toughness and corrosion resistance, addition of titanium oxide to alumina powder is widely used [4][5][6][7][8]. It was found that addition of TiO 2 reduces the microhardness of alumina coatings [9][10][11][12], also titanium oxide increases corrosion resistance, wear rate, elastic modulus and decreases porosity [13].…”

“…The temperature inside the boiler is about 500-600 °C and as other scientist have confirmed, there are almost no phase changes of Al 2 O 3 coatings in the range of 500-700 °C [7,14]. To decrease the manufacturing cost even further, unlike in the work of other authors [4][5][6][7][8][9][10], where coatings were formed mostly using Ar as primary and H 2 as secondary gas, in this research air was used as primary and H 2 as secondary gas. Because of this change it was necessary to verify if the coatings properties would stay the same.…”

Thermal And Chemical Resistance Of Plasma Sprayed Al2o3, Al2o3-Tio2 Coatings

“…Such wide applications are related to the high hardness, chemical inertness and low cost of material. To improve coating qualities, such as brittleness and friction coe cient reduction, increase of fracture toughness and corrosion resistance, addition of titanium oxide to alumina powder is widely used [4][5][6][7][8]. It was found that addition of TiO 2 reduces the microhardness of alumina coatings [9][10][11][12], also titanium oxide increases corrosion resistance, wear rate, elastic modulus and decreases porosity [13].…”

“…The temperature inside the boiler is about 500-600 °C and as other scientist have con rmed, there are almost no phase changes of Al 2 O 3 coatings in the range of 500-700 °C [7,14]. To decrease the manufacturing cost even further, unlike in the work of other authors [4][5][6][7][8][9][10], where coatings were formed mostly using Ar as primary and H 2 as secondary gas, in this research air was used as primary and H 2 as secondary gas. Because of this change it was necessary to verify if the coatings properties would stay the same.…”