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Effect of erosive wear on microstructural changes in laser cladded Co-Mo-Cr-Si alloy.

Przybyłowicz J., Kusiński J., Morgiel J.

Inżynieria Materiałowa

1998

R. XIX, nr 4

1027-1030

The laser deposited coating of Tribaloy T-400 cobalt base alloy containing Mo, Cr and Si has been subjected to solid particle erosion. Changes in alloy surface layer morphology and microstructure due to intensive particles impact have been studied by means of scanning and transmission electron microscopy. Three zones ranging down to 30-40 micrometers under the eroded surface have been distingished regarding the microstructural effects observed. The microstructure changed from nearly amorphous at the surface through strongly dislocated in the second zone to containing stacking faults in third zone.