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Formation Mechanisms and Microstructure Characterization of Al/Al3Ni In-situ Composite by Compound Casting
Shahid Bahonar University of Kerman, Iran.ORCID iD: 0000-0003-1779-8728
2019 (English)In: Metallurgical and materials transactions. B, process metallurgy and materials processing science, ISSN 1073-5615, E-ISSN 1543-1916, Vol. 50, no 6, p. 3020-3026Article in journal (Refereed) Published
Abstract [en]

The Compound casting method was used to produce an Al/Ni bimetal composite. The mechanisms of formation of the reinforcing intermetallic phases were studied and the produced bimetal composite’s microstructure was then characterized. The results showed that the Al/Ni interface consisted of two intermetallic layers including Al3Ni2 and Al3Ni. It is suggested that the Al3Ni reinforcing particles of the composite originated from two sources. (1) Some Al3Ni particles detached from the Al3Ni layer formed at the interface between the Ni core and the Al melt and dispersed in the liquid Al and (2) Al-Al3Ni eutectic phase, which formed during the solidification process. The increase in the temperature led to the formation of more reinforcing particles and extended the depth of dispersion of the particles in the Al matrix.

Place, publisher, year, edition, pages
Springer, 2019. Vol. 50, no 6, p. 3020-3026
Keywords [en]
Bimetals, Binary alloys, Intermetallics, Microstructure, Solidification, Ternary alloys, Bimetal composites, Formation mechanism, Intermetallic layer, Intermetallic phasis, Mechanisms of formation, Microstructure characterization, Reinforcing particles, Solidification process, Indium compounds
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-264002DOI: 10.1007/s11663-019-01682-1Scopus ID: 2-s2.0-85073960184OAI: oai:DiVA.org:kth-264002DiVA, id: diva2:1371609
Note

QC 20191120

Available from: 2019-11-20 Created: 2019-11-20 Last updated: 2019-11-20Bibliographically approved

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