The properties and structure of arc sprayed coatings alloy of Fe-Cr-Ti-Si-Mn

Comprehensive study of EuTronic Arc 502 wire arc spraying technology were conducted to establish optimum properties of very high wear resistance coatings alloy of Fe-Cr-Ti-Si-Mn sprayed on ASTM A516, Grade 55 base metal sheets. Alloy of Fe-Cr-Ti-Si-Mn coatings characterization was done in accordance to ASTM G 65-00 Procedure A abrasion resistance test, ASTM G 76-95 erosion resistance tests, ASTM C 633-01 adhesion strength, HV 0.1 hardness tests and metallographic examinations. The research the influence of the basic parameters of the wire arc spraying EuTronic arc 502 shown possible to fabricate a high quality coating of Cr-Fe-Si-Ti, Mn having a thickness of approx. 1.0 [mm], which is characterized by a low porosity in the range of 10-15%, and average grain size less then 50 [nm]. Bonding between base material and sprayed coating is adhesive with bonding strength above 10 [N/mm²]. Alloy of Fe-Cr-Ti-Si-Mn sprayed coating show very high hardness (above 58 HRC), and provide high wear resistance, comparable to HARDOX 400 steel. Erosion resistance at particle impingement angles from 15° to 30° is high but 40% lower than HARDOX 400 steel plate.