Balla, V K and Das, Mitun and Mohammad, Ashfaq and Al-Ahmari, Abdulrahman M (2016) Additive Manufacturing of γ-TiAl: Processing, Microstructure, and Properties. Advanced Engineering Materials, 18 (7). pp. 1208-1215. ISSN 1438-1656

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Additive manufacturing of -TiAl intermetallic alloy using laser-engineered net shaping (LENS) is reported. The influence of laser power and scan speed on processability, microstructure, tribological, and electrochemical properties is studied. The results demonstrate that near net shape -TiAl parts can be fabricated using LENS and defect-free parts are obtained with narrow laser energy input range (40-50Jmm(-2)). The high cooling rates result in massive-like matrix with small amount of +(2) lamellar. Process parameters strongly influence tribological and electrochemical properties of LENS-processed -TiAl parts in 3.5% NaCl solution. Wear is of abrasive type with no evidence of corrosion on wear tracks.

Item Type: Article
Subjects: Engineering Materials
Divisions: Bioceramics & Coating
Depositing User: Bidhan Chaudhuri
Date Deposited: 11 Nov 2016 10:21
Last Modified: 11 Nov 2016 10:21

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