Roy, D and Mitra, R and Ojo, O A and Singh, S S and Kolesnikov, D and Lojkowski, W and Scattergood, R O and Koch, C C and Manna, Indranil (2012) Evaluation of mechanical properties of partially amorphous and nanocrystalline Al50Ti40Si10 composites prepared by mechanical alloying and hot isostatic pressing. Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, 555. pp. 21-27. ISSN 0921-5093

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Abstract

Mechanically alloyed in situ nano Al3Ti dispersed Al50T40Si10 amorphous matrix alloy powder was consolidated by hot isostatic pressing in the temperature range of 300-600 degrees C with a pressure of 1.2 GPa and holed at this temperature for 10 min. Microstructural and phase evolution studies of the mechanically alloyed powder and sintered compacts were conducted by X-ray diffraction and transmission electron microscopy. Alloy sintered at 500 degrees C recorded an excellent combination of high hardness(8.61 GPa), compressive strength (1212 MPa) and Young's modulus (149 GPa). Furthermore, these results have been compared with that of earlier studies based on conventional sintering (CCS), and high pressure sintering (HPS). (c) 2012 Elsevier B.V. All rights reserved.

Item Type: Article
Uncontrolled Keywords: Nano-structure; Mechanical properties; Electron microscopy; Hot isostatic pressing
Subjects: Engineering Materials
Divisions: Director´┐Żs Secretariat
Depositing User: Bidhan Chaudhuri
Date Deposited: 01 Nov 2012 08:32
Last Modified: 01 Nov 2012 08:32
URI: http://cgcri.csircentral.net/id/eprint/1797

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