Characterisation of nickel-aluminium bronze powders produced by the planar flow casting method

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

MATERIALS SCIENCE AND TECHNOLOGY, vol.36, no.16, pp.1771-1784, 2020 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 36 Issue: 16
  • Publication Date: 2020
  • Doi Number: 10.1080/02670836.2020.1834681
  • Journal Name: MATERIALS SCIENCE AND TECHNOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Applied Science & Technology Source, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.1771-1784
  • Keywords: Nickel&#8211, aluminium bronze, planar flow casting, rapid solidification, powder metallurgy, MECHANICAL-PROPERTIES, HEAT-TREATMENT, ALLOY, MICROSTRUCTURE, PHASES, ATOMIZATION
  • Karadeniz Technical University Affiliated: Yes

Abstract

CuAl10Ni5Fe4 alloy powders were successfully produced using the planar flow casting method, known as the continuous ribbon production process. Cooling the textured wheel to -5 oC resulted in a much finer microstructure in comparison to uncooled wheel powders. The microstructure of the powders, in case of the cooled wheel, consisted of beta ' martensite, which resides inside the colonies, and proeutectoid alpha phase at colony boundaries. The martensite start and finish temperatures for uncooled wheel powders were obtained as 221 oC, and 174 oC, respectively. The Ms and Mf temperatures for cooled wheel powders were measured as 207 oC, and 135 oC, respectively. It is observed that the magnetic properties of the produced powders change with the amount of beta ' martensite.