Publication detail

Formation of Hypereutectic Aluminium Alloy from Sacrificial Nickel Coating Investigated by Differential Thermal and Microstructural Analysis

KLAKURKOVÁ, L. ČELKO, L. ZLÁ, S. SMETANA, B.

Original Title

Type

abstract

Language

English

Original Abstract

Nickel coating was sprayed from the 99,7 wt.% nickel powder by high velocity oxyfuel technique onto the 99.5 wt.% aluminium sheet surface. After the spraying was the samples annealed up to the temperature of 700, 800 and 1000oC. The heating rate of the samples of 5oC / min and cooling rate of 20oC/min was set up. Formation of binary hypereuectic aluminium alloy was investigated by using differential thermal analysis, metalography and scanning compare the results obtained. The microstructure of Al-Ni hypereutectic alloy is of aluminium matrix and Al3Ni eutectic. To estimate the chemical composition of phases the energy dispersive microanalysis was used. With increasing temperature the eutectic coarsen and the particles of primary Al3Ni phase is started to be formed. The image analysis was applied to measure the resulting undissolved nickel coating thickness nad Al3Ni eutectic parameters.

Keywords

Al; Al-Ni hypereutectic alloy; DTA; diffusion; HVOF

Authors

KLAKURKOVÁ, L.; ČELKO, L.; ZLÁ, S.; SMETANA, B.

Released

5. 9. 2011

Publisher

IInstitute of Technical Sciences of the Serbian Academy of Sciences and Arts

Location

Belgrade, Serbia

Pages from

103

Pages to

103

Pages count

BibTex

@misc{BUT89767,
  author="Lenka {Klakurková} and Ladislav {Čelko} and Simona {Zlá} and Bedřich {Smetana}",
  title="Formation of Hypereutectic Aluminium Alloy from Sacrificial Nickel Coating Investigated by Differential Thermal and Microstructural Analysis",
  booktitle="YUCOMAT 2011",
  year="2011",
  edition="13",
  volume="13",
  number="13",
  pages="103--103",
  publisher="IInstitute of Technical Sciences of the Serbian Academy of Sciences and Arts",
  address="Belgrade, Serbia",
  note="abstract"
}