Abstract
Erosion of high velocity oxy-fuel (HVOF) sprayed Cr3C2-NiCr coatings is studied by investigating the spraying parameters including fuel gas flow, oxygen flow and spraying distance. The surface morphology and the cross section structure of the eroded coatings for different jet angles are examined. The experimental results show that the erosion behavior is similar to that of brittle ceramic materials while the maximum erosion is found to occur at a jet angle of 90 degrees. The successive spalling of splats from the lamellar interface of the coating caused by the impact of erosive particles is the dominant mechanism of erosion.
| Original language | English |
|---|---|
| Pages (from-to) | 59-63 |
| Number of pages | 5 |
| Journal | Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University |
| Volume | 34 |
| Issue number | 5 |
| State | Published - May 2000 |