Publication detail

Application of sacrificial coatings and effect of composition on Al-Al3NI Ultrafine eutectic formation

ČELKO, L. KLAKURKOVÁ, L. SMETANA, B. SLÁMEČKA, K. ŽALUDOVÁ, M. HUI, D. ŠVEJCAR, J.

Original Title

Application of sacrificial coatings and effect of composition on Al-Al3NI Ultrafine eutectic formation

Type

journal article in Web of Science

Language

English

Original Abstract

This paper introduces an unconventional method designed for forming hypereutectic alloys via coating deposition onto the substrate surface and subsequent heat treatment of such systems. The coating was produced from 99.7 wt% nickel powder by means of high velocity oxyfuel (HVOF) spraying onto the surface of 99.999 wt% aluminium sheet. The specimens were manufactured immediately after the spraying. Specimens were heat-treated using a differential thermal analysis (DTA) apparatus up to a temperature of 900°C and then cooled down to the room temperature in an argon atmosphere with constant heating and cooling rates, under which the NiAl3 intermetallic phase formed within the initial substrate. Two different alloy microstructures consisting of a coarse eutectic and an ultrafine well-dispersed eutectic were produced. The formation processes and resultant microstructures were studied by means of differential thermal analysis, metallography, scanning electron microscopy, energy dispersive microanalysis, and image analysis techniques.

Keywords

Aluminium alloys; Aluminides Miscellaneous; Plasma Spraying; Differential Thermal Analysis

Authors

ČELKO, L.; KLAKURKOVÁ, L.; SMETANA, B.; SLÁMEČKA, K.; ŽALUDOVÁ, M.; HUI, D.; ŠVEJCAR, J.

RIV year

2014

Released

1. 4. 2014

Publisher

TECHNICAL FACULTY, BOR-SERBIA, UNIV BELGRADE, VOJSKE JUGOSLAVIJE 12, BOR, 19210, SERBIA

Location

SERBIA

ISBN

1450-5339

Periodical

Journal of Mining and Metallurgy, Section B: Metallurgy

Year of study

50

Number

1

State

Republic of Serbia

Pages from

31

Pages to

36

Pages count

6

URL

http://www.doiserbia.nb.rs/Article.aspx?ID=1450-53391300038C

Full text in the Digital Library

http://hdl.handle.net/11012/201754

BibTex

@article{BUT107867,
  author="Ladislav {Čelko} and Lenka {Klakurková} and Bedřich {Smetana} and Karel {Slámečka} and Monika {Žaludová} and David {Hui} and Jiří {Švejcar}",
  title="Application of sacrificial coatings and effect of composition on Al-Al3NI Ultrafine eutectic formation",
  journal="Journal of Mining and Metallurgy, Section B: Metallurgy",
  year="2014",
  volume="50",
  number="1",
  pages="31--36",
  doi="10.2298/JMMB121013038C",
  issn="1450-5339",
  url="http://www.doiserbia.nb.rs/Article.aspx?ID=1450-53391300038C"
}