Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/22809
Title: Comparison of titanium silicide and carbide reinforced in situ synthesized TiAl composites and their mechanical properties
Authors: Rao, KP
Vyas, A
Keywords: A. Intermetallics
B. Mechanical properties at high temperatures
C. Mechanical alloying and milling
F. X-ray diffraction (XRD)
Issue Date: 2011
Publisher: Elsevier Sci Ltd
Source: Intermetallics, 2011, v. 19, no. 8, p. 1236-1242 How to cite?
Journal: Intermetallics 
Abstract: This study explored a synthesizing route involving in situ development of reinforcements of titanium silicides in a series of TiAl-based matrices. The main features of this processing route are: (1) Incorporating a small quantity of mechanically alloyed Ti-Al-Si and Ti-Al-Si-C powders, referred to as precursors, into Ti-Al-X (X stands for Cr, Mn, Nb, or their combination) powder mixtures that act as matrices; and (2) Hot isostatic pressing (HIPing) of the cold compacted mixture at a temperature of 1100 °C for 4 h. A series of composites based on different Ti-Al-X matrix were synthesized. The structural evolution in these composites was characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The mechanical properties and compression tests at room and elevated temperatures (600 °C and 800 °C) have been investigated. In addition, the influence of alloying elements in the matrix has been evaluated from their stress-strain responses.
URI: http://hdl.handle.net/10397/22809
DOI: 10.1016/j.intermet.2011.04.001
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