Metal-ceramic interfaces produced by laser melt injection processing

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[1] De Hosson, J.Th.M.
[2] van den Burg, M.
来源：
De Hosson, J.Th.M. | 1600年 / Marcel Dekker Inc, New York, NY, United States卷 / 10期
关键词：
Bond strength (materials) - Carbon dioxide lasers - Ceramic materials - Chromium compounds - Coatings - Composition - Fracture - High power lasers - Interfaces (materials) - Laser applications - Steel - Substrates;
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摘要：
This paper concentrates on the mechanical performance of various ceramic coatings of Cr2O3 on steel (SAF2205), as produced by CO2 laser processing. It is concluded that a firmly bonded coating of Cr2O3 on steel could be produced by high power laser processing. The actual interface strength of a (Fe,Cr)-spinel applied to stainless steel by laser coating depends strongly on the composition of the substrate and coating materials. The energy release rate was extremely high and delamination occurred by fracture through the coating and partially along the interface, indicating that the interface strength is similar to or higher than the fracture strength of (Fe,Cr)-spinel.
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