Publication result detail

Formation of Ultrafine Eutectic in Hypereutectic Alloys Produced by Heat Treatment of Nickel Coated

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

Original Title

Formation of Ultrafine Eutectic in Hypereutectic Alloys Produced by Heat Treatment of Nickel Coated

English Title

Formation of Ultrafine Eutectic in Hypereutectic Alloys Produced by Heat Treatment of Nickel Coated

Type

Conference proceedings

Original Abstract

Aluminium alloys have a very low density, excellent oxidation resistance and workability. However, their usability is often limited by poor mechanical resistance compared to other metals. Several methods to enhance mechanical properties of aluminium are known. One of them is a composite alloy formation, where a second phase with high elastic modulus is added. In a case of aluminium strengthened by intermetallics, the eutectic reaction can be properly utilized. Based on a constituent concentration, the hypo-eutectic or hyper-eutectic alloys could be produced. The paper focuses on the results of microstructural and differential thermal analyses of hypereutectic alloys, which were produced by an unconventional method consisting of sacrificial nickel coating formation on aluminium substrate and its subsequent annealing at the temperature above the melting point of aluminium.

English abstract

Aluminium alloys have a very low density, excellent oxidation resistance and workability. However, their usability is often limited by poor mechanical resistance compared to other metals. Several methods to enhance mechanical properties of aluminium are known. One of them is a composite alloy formation, where a second phase with high elastic modulus is added. In a case of aluminium strengthened by intermetallics, the eutectic reaction can be properly utilized. Based on a constituent concentration, the hypo-eutectic or hyper-eutectic alloys could be produced. The paper focuses on the results of microstructural and differential thermal analyses of hypereutectic alloys, which were produced by an unconventional method consisting of sacrificial nickel coating formation on aluminium substrate and its subsequent annealing at the temperature above the melting point of aluminium.

Keywords

Ultrafine Eutectic, Al alloys, Ni coating, Heat treatment

Key words in English

Ultrafine Eutectic, Al alloys, Ni coating, Heat treatment

Authors

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

RIV year

2016

Released

22.07.2012

Publisher

State Key Lab Organic-Inorganic Composites, Beijing University of Chemical Technology

Location

Beijing, China

Book

ICCE - 20

Pages from

94

Pages to

96

Pages count

2

BibTex

@proceedings{BUT99137,
  editor="Ladislav {Čelko} and Lenka {Klakurková} and Bedřich {Smetana} and Karel {Slámečka} and Jiří {Švejcar} and Monika {Žaludová}",
  title="Formation of Ultrafine Eutectic in Hypereutectic Alloys Produced by Heat Treatment of Nickel Coated",
  year="2012",
  pages="94--96",
  publisher="State Key Lab Organic-Inorganic Composites, Beijing University of Chemical Technology",
  address="Beijing, China"
}