Publication detail

Phase Analysis of Aluminide Diffusion Coatings Produced ba Aluminizing of Nickel and Nickel-Based Alloys

PODRÁBSKÝ, T. JULIŠ, M. ČELKO, L. KLAKURKOVÁ, L. HUTAŘOVÁ, S.

Original Title

Phase Analysis of Aluminide Diffusion Coatings Produced ba Aluminizing of Nickel and Nickel-Based Alloys

Type

abstract

Language

English

Original Abstract

Diffusion coatings based on nicke-.aluminides were formed on nickel, nickel-20 wt.% chromium and Inconel 713LC substrates using powder liquid aluminizing method followed by two-stage heat treatment in argon-flow atmosphere. Two main layers consists of nickel-aluminide intermediate phases between the deposited coatings and nickel-based substrate were formed, until the second stage of annealing temperature (1000oC) have been reached. These totla layers thickness during the isothermal dwell slowly increases. Moreover, in the case of chromium containinf substrates, the third separate layer starts to form. It seems that the chromium content significantly influences nickel-aluminide layer starts formation. Independently on the substrate for coating deposition used the Al3Ni2, AlHi and AlCr2 phases (last mentioned containing ones) werw identified. The microstructure of coating substrate interface were obtained by scanning slectron microscope. Mayer thickness measurements were measured by means of image analysis. Chemical composition were estimated using energy dispersive microanalysis. Qualitative and quantitative X-ray diffraction copleted by Rietveld analysis for phase determination werw also used.

Keywords

diffusion coatings; Inconel 713LC; phase analysis; nickel-based alloys

Authors

PODRÁBSKÝ, T.; JULIŠ, M.; ČELKO, L.; KLAKURKOVÁ, L.; HUTAŘOVÁ, S.

Released

2. 9. 2013

Publisher

Materials Research Society of Serbia

Location

Belgrade, Serbia

Pages from

74

Pages to

74

Pages count

1

BibTex

@misc{BUT105556,
  author="Tomáš {Podrábský} and Martin {Juliš} and Ladislav {Čelko} and Lenka {Klakurková} and Simona {Hutařová}",
  title="Phase Analysis of Aluminide Diffusion Coatings Produced ba Aluminizing of Nickel and Nickel-Based Alloys",
  booktitle="YUCOMAT 2013, The Book of Abstracts",
  year="2013",
  edition="14",
  pages="74--74",
  publisher="Materials Research Society of Serbia",
  address="Belgrade, Serbia",
  note="abstract"
}