The influence of heat treatment on mechanical and microstructure properties of intermetallic nickel aluminide, NI3AI | [Science International • 2022]

Author(s):

1. T. Joseph Sahaya Anand: Fakulti Kejuruteraan Pembuatan, Universiti Teknikal Malaysia Melaka, 76100 Durian Tunggal, Melaka, Malaysia.

2. H.H.H. Afandi: Fakulti Kejuruteraan Pembuatan, Universiti Teknikal Malaysia Melaka, 76100 Durian Tunggal, Melaka, Malaysia.

3. S. Shariza: Faculty of Manufacturing Engineering, Universiti Teknikal Malaysia Melaka (UTeM), Melaka, Malaysia.

4. I.S. Othman: Fakulti Kejuruteraan Pembuatan, Universiti Teknikal Malaysia Melaka, 76100 Durian Tunggal, Melaka, Malaysia

5. Sivaraos: Fakulti Kejuruteraan Pembuatan, Universiti Teknikal Malaysia Melaka, 76100 Durian Tunggal, Melaka, Malaysia

Abstract:

Intermetallic Nickel Aluminides have been used in automotive industry with its superior characteristics such as lightweight, good resistance in high temperature and corrosion, and high oxidation. Mechanical studies including hardness carried out to confirm this Intermetallic Nickel Aluminides suitable for automotive wheel hub. The samples were heat treated for 400°C, 500°C and 600°C and observed Scanning electron microscope for their microstructural behaviour. X-ray diffraction was used to study the crystal structure of the alloy and grain size were calculated. The highest hardness value is the Ni3Al sample at 600°C which is 213.38 HV at 0.5 kgf. Meanwhile the lowest value is at non-heat treated sample with the value of 56.66 HV at 2.0 kgf load force. Similar trend also observed for Ni3Al grain size is at the largest at 600°C with 45.462 nm and the smallest during non-heat treated at 22.725 nm. This shows that temperature affects the materials characteristics.

Page(s): 125-129

DOI: DOI not available

Published: Journal: Science International, Volume: 34, Issue: 2, Year: 2022

Keywords:

hardness , Nickel Aluminides , grain size , Intermetallic compound IMC

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