Effect of Substrate Surface Change on Flattening Behaviour of Thermal Sprayed Particles

DOI Web Site Web Site 5 Citations 18 References
  • Fukumoto Masahiro
    Department of Production Systems Engineering, Toyohashi University of Technology
  • Ohgitani Ikkei
    Department of Production Systems Engineering, Toyohashi University of Technology
  • Yasui Toshiaki
    Department of Production Systems Engineering, Toyohashi University of Technology

Search this article

Abstract

We have pointed out in our research that in the thermal spraying of practical powder materials, the splat shape change transitionally to a disk shape from a splash shape on a critical substrate temperature range. Substrate temperature increasing may accompany the change in something on the substrate surface, because the changing effect is maintained till the substrate is cooled down to the room temperature. Thus, a certain non-reversible change in substrate surface due to the heating might be the possible domination for the transition phenomenon in the flattening of thermal sprayed particles. In this study, AISI304 steel substrate surface once heated to 673 K was analyzed precisely by atomic force microscope (AFM), X-ray photoelectron spectroscopy (XPS) and auger electron spectroscopy. The results obtained revealed that the change of the substrate surface occurred not in the chemical composition but mainly in the surface roughness, especially surface morphology in nano-meter scale. Substrate heating may bring about the change in the physical way on the substrate surface and this change induces the transition phenomenon.

Journal

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 45 (6), 1869-1873, 2004

    The Japan Institute of Metals and Materials

Citations (5)*help

See more

References(18)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top