Study of the Wear and Corrosion Performance of Hard Coatings Applied by Different Processes on Low Carbon Steel  

作　　者：Carlos Roberto Camello Lima Rodolfo Libardi Flávio Camargo Miguel Angel Reyes Mojena Hipólito Domingo Carvajal Fals Valtair Antonio Ferraresi Carlos Roberto Camello Lima;Rodolfo Libardi;Flávio Camargo;Miguel Angel Reyes Mojena;Hipólito Domingo Carvajal Fals;Valtair Antonio Ferraresi(Methodist University of Piracicaba, Santa Bárbara d’Oeste, Sao Paulo, Brazil;Ogramac Surface Engineering, Santo Antonio de Posse, Sao Paulo, Brazil;Oriente University, Santiago de Cuba, Cuba;Federal University of Uberlandia, Uberlandia, Minas Gerais, Brazil)

机构地区：[1]Methodist University of Piracicaba, Santa Bárbara d’Oeste, Sao Paulo, Brazil [2]Ogramac Surface Engineering, Santo Antonio de Posse, Sao Paulo, Brazil [3]Oriente University, Santiago de Cuba, Cuba [4]Federal University of Uberlandia, Uberlandia, Minas Gerais, Brazil

出　　处：《Materials Sciences and Applications》2016年第7期358-370,共13页材料科学与应用期刊（英文）

摘　　要：Most of materials used in applications that require high wear resistance also undergo corrosive action of the service environment. The damage caused by the combination of both processes on the materials leads to huge economic losses in industry. Hard coatings are widely used as engineering solution to increase the lifetime of components operating in conditions of wear combined with corrosion. Nowadays, the most versatile techniques for applying such coatings are welding and thermal spraying. This work evaluates and compares the properties of coatings obtained by thermal spraying and welding using selected feeding materials. The performance of the coatings in corrosion and erosive wear tests is discussed. From the erosion tests performed for impact angle of 90°, a similar performance for the thermally sprayed tungsten carbide coatings and the welded stainless steel coatings with higher input energy was observed. Welded samples presented the best performance in corrosion test.Most of materials used in applications that require high wear resistance also undergo corrosive action of the service environment. The damage caused by the combination of both processes on the materials leads to huge economic losses in industry. Hard coatings are widely used as engineering solution to increase the lifetime of components operating in conditions of wear combined with corrosion. Nowadays, the most versatile techniques for applying such coatings are welding and thermal spraying. This work evaluates and compares the properties of coatings obtained by thermal spraying and welding using selected feeding materials. The performance of the coatings in corrosion and erosive wear tests is discussed. From the erosion tests performed for impact angle of 90°, a similar performance for the thermally sprayed tungsten carbide coatings and the welded stainless steel coatings with higher input energy was observed. Welded samples presented the best performance in corrosion test.

关 键 词：Hard Coatings HVOF WELDING Erosive Wear Corrosion 

分 类 号：TG1[金属学及工艺—金属学]