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EFFECTS OF LOADS ON HIGH-TEMPERATURE FRICTION-WEAR PROPERTIES OF CATHODIC ARC ION PLATED TiALSiN COATINGS

Author

Listed:
  • KONG DEJUN

    (School of Mechanical Engineering, Changzhou University, Changzhou 213164, P. R. China†Jiangsu Key Laboratory of Materials Surface Science and Technology, Changzhou University, Changzhou 213164, P. R. China)

  • TANG CHENGJIAN

    (School of Mechanical Engineering, Changzhou University, Changzhou 213164, P. R. China)

Abstract

A TiAlSiN coating was deposited on H13 hot work mould steel using a cathodic arc ion plating (CAIP). The friction-wear performances of the obtained coating under different loads were characterized on an HT-1000 type high temperature tribological tester at 800∘C. The morphologies and chemical compositions of the worn tracks were analyzed using a scanning electronic microscope (SEM) and its configured energy dispersive spectrometer (EDS), respectively, and the corresponding wear mechanisms were discussed. The results show that the average coefficient of friction (COF) of the TiAlSiN coating at the loads of 2, 4 and 6N is 0.3072, 0.3040, and 0.4114, respectively, the COFs of the coating are stable at the loads of 2 and 4N, while those at the load of 6N are obviously increased. Under the load of 2N, a small amount of large and scattered white debris disperses on the worn track, the wear mechanism is adhesive wear. While the white wear debris appears on the worn track under the load of 4N, the COFs are relatively stable, due to the effects of oxide layer on the worn track, and the wear mechanism is abrasive wear and oxidation wear. Under the load of 6N, a number of shallow grooves and cracks appear on the worn tracks, showing that the coating is basically worn out, the wear mechanism is abrasive wear and oxidation wear.

Suggested Citation

  • Kong Dejun & Tang Chengjian, 2017. "EFFECTS OF LOADS ON HIGH-TEMPERATURE FRICTION-WEAR PROPERTIES OF CATHODIC ARC ION PLATED TiALSiN COATINGS," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 24(Supp02), pages 1-8, November.
    • Handle: RePEc:wsi:srlxxx:v:24:y:2017:i:supp02:n:s0218625x18500348
    DOI: 10.1142/S0218625X18500348
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