Improvement of microstructure, tribology and corrosion characteristics of nickel-aluminum bronze by P/M method

ÖZTÜRK S. , SÜNBÜL S. E. , Metoglu A., İÇİN K.

TRIBOLOGY INTERNATIONAL, vol.151, 2020 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 151
  • Publication Date: 2020
  • Doi Number: 10.1016/j.triboint.2020.106519
  • Keywords: Nickel-aluminum bronze, Planar-flow casting, Powder metallurgy, Tribological and corrosion properties, WHEEL SURFACE QUALITY, MECHANICAL-PROPERTIES, WEAR CHARACTERISTICS, POWDER-METALLURGY, ALLOY, CAST, AL, RESISTANCE, FRICTION, BEHAVIOR


In the present study, we have produced CuAl10Ni5Fe4 alloy powders by using the planar flow casting method. The microstructure, wear response, and corrosion properties of as-cast and P/M parts were systematically investigated, and the improvements by P/M production method were presented. While the as-cast microstructure contained alpha, beta, kappa(11) and kappa(111) phases, the rapidly solidified powders had alpha, and beta' martensite phases. On the other hand, the lower friction coefficient values were obtained in the case of the P/M production technique in comparison to the as-cast state. Also, an improvement in specific wear rate performances of P/M parts compared with the as-cast alloy was observed. It was observed that the P/M parts exhibited better corrosion properties than the as-cast samples.