High Density Infrared (HDI) Transient Liquid Coatings for Improved Wear and Corrosion Resistance

[摘要] This report documents a collaborative effort between Oak Ridge National Laboratory (ORNL), Materials Resources International and an industry team of participants to develop, evaluate and understand how high density infrared heating technology could be used to improve infiltrated carbide wear coatings and/or to densify sprayed coatings. The research included HDI fusion evaluations of infiltrated carbide suspensions such (BrazeCoatÂŽ S), composite suspensions with tool steel powders, thermally sprayed Ni-Cr- B-Si (self fluxing alloy) and nickel powder layers. The applied work developed practical HDI / transient liquid coating (TLC) procedures on test plates that demonstrated the ability to fuse carbide coatings for industrial applications such as agricultural blades, construction and mining vehicles. Fundamental studies helped create process models that led to improved process understanding and control. The coating of agricultural blades was demonstrated and showed the HDI process to have the ability to fuse industrial scale components. Sliding and brasive wear tests showed that high degree of wear resistance could be achieved with the addition of tool steel powders to carbide particulate composites.

[发布日期] 2007-07-05

[学科分类] 材料科学（综合）

[关键词] CARBIDES;COATINGS;CONSTRUCTION;CORROSION RESISTANCE;HEATING;MINING;NICKEL;ORNL;PARTICULATES;PLATES;SPRAYED COATINGS;STEELS;TRANSIENTS;WEAR RESISTANCE infrared heating;surface fusion;coatings;wear coatings;wear resist