Aluminium-based nanocomposites by non-equilibrium processing routes

S. S. Nayak; D. H. Kim; S. K. Pabi; B. S. Murty

Aluminium-based nanocomposites by non-equilibrium processing routes

S. S. Nayak, D. H. Kim, S. K. Pabi, B. S. Murty

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

Successful synthesis of Al-based nanocomposites by mechanical alloying (MA) and rapid solidification processing (RSP) with functional mechanical properties, in Al-Fe and Al-Ti systems, has been reported in the present paper. In melt spun Al-Fe ribbons fine cellular structure, dendritic structure, fine dispersion of second phase particle and particle segregations at α-Al grain boundaries were observed depending on compositions. In Al-Ti system only a two phase mixture forms irrespective of the composition. The volume fraction of L1₂-Al₃Ti precipitates in Al-Ti alloys is more in as spun ribbons compared to MA powders. MA shows improved hardness value, which further increases with annealing temperature.

Original language	English
Pages (from-to)	193-198
Number of pages	6
Journal	Transactions of the Indian Institute of Metals
Volume	59
Issue number	2
Publication status	Published - 2006 Apr

All Science Journal Classification (ASJC) codes

Metals and Alloys

Cite this

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N2 - Successful synthesis of Al-based nanocomposites by mechanical alloying (MA) and rapid solidification processing (RSP) with functional mechanical properties, in Al-Fe and Al-Ti systems, has been reported in the present paper. In melt spun Al-Fe ribbons fine cellular structure, dendritic structure, fine dispersion of second phase particle and particle segregations at α-Al grain boundaries were observed depending on compositions. In Al-Ti system only a two phase mixture forms irrespective of the composition. The volume fraction of L12-Al3Ti precipitates in Al-Ti alloys is more in as spun ribbons compared to MA powders. MA shows improved hardness value, which further increases with annealing temperature.

AB - Successful synthesis of Al-based nanocomposites by mechanical alloying (MA) and rapid solidification processing (RSP) with functional mechanical properties, in Al-Fe and Al-Ti systems, has been reported in the present paper. In melt spun Al-Fe ribbons fine cellular structure, dendritic structure, fine dispersion of second phase particle and particle segregations at α-Al grain boundaries were observed depending on compositions. In Al-Ti system only a two phase mixture forms irrespective of the composition. The volume fraction of L12-Al3Ti precipitates in Al-Ti alloys is more in as spun ribbons compared to MA powders. MA shows improved hardness value, which further increases with annealing temperature.

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Aluminium-based nanocomposites by non-equilibrium processing routes

Abstract

All Science Journal Classification (ASJC) codes

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