Health & Environmental Research Online (HERO)


Print Feedback Export to File
8407282 
Meetings & Symposia 
Adhesion of thermally sprayed metallic coating 
Varavallo, R; Manfrinato, MD; Rossino, LS; Maluf, O; Camargo, F 
2012 
Yes 
ASTM Special Technical Publication
ISSN: 0066-0558 
ASTM International 
LAUSANNE 
18th International Federation for Heat Treatment and Surface Engineering 
1532 STP 
2 
559-573 
English 
WOS:000310656200022 
An adhesion testing device was built, based on the ASTM C 633-79 standard, to study the deposition of metallic coatings produced by the HVOF (high velocity oxygen fuel) thermal spray process with the materials 1342 VM, 1350 VM, and 8812, and by the arc spray (AS) process with the materials STELLIT 6 PM SD 38 EF, 97 MXC, and 140 MXC. This type of test is widely used as a tool to determine the influence of the conditions of the thermal spray technique, substrate surface and abrasive blasting on the strength, and adhesion of the sprayed layer on the substrate. The sprayed coatings were characterized based on their hardness, metallographic characteristics, and roughness measurements. They also underwent adhesion tests, and the fracture surfaces of each material were analyzed, revealing mixed results, i.e., different types of fractures involving cohesive fracture, adhesive failure, and adhesive fracture, according to the type of coating produced. Copyright © 2012 by ASTM International. 
Adhesion testing device; HVOF; Thermal spray