Work

Effect of ZrB2 and ZrC and mixing method on Mechanical properties and wear behaviour of Al7075 based composites for aircraft aerofoil surfaces

Year: 2024

Type: article

Abstract: Developing lightweight materials with notable properties for aerospace applications is a great challenge. The impact of ZrB 2 and ZrC reinforcement on the mechanical and wear behaviour of stir-cast Al7075-ZrB 2 -ZrC composites is investigated with a weight percentage of 2, 4, 6 and 8 % ZrB 2 , and fixed 2 % ZrC. The results showed notable improvements with a hardness of 96 HRB, tensile strength of 423 MPa and compressive strength of 385 MPa; hardness increased by 14 %, tensile strength increased by 11 % and compressive strength was enhanced by 13 % when compared with pure Al7075. The wear behaviour has been analysed by pin-on-disc wear test at room temperature with loads of 10 N and 20 N against the sliding distance of 400 m to 1200 m; the wear resistance is improved by 17 % and CoF is reduced by 11 % compared to pure Al7075. SEM micrographs display the wear mechanism and microstructural changes happened during the wear test. Al7075-ZrB 2 -ZrC composites are the optimum replacement for aerofoil surfaces because of their remarkable properties.

Source: Journal of Alloys and Metallurgical Systems

DOI: 10.1016/j.jalmes.2024.100118

Authors: R. Malkiya Rasalin Prince, D. Arulkirubakaran, S. Christopher Ezhil Singh, C. Prabha, I. Darwin Immanuel

Institutions: Karunya University, Vimal Jyothi Engineering College

Language: English

Topic: Aluminum Alloys Composites Properties

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,500

Funder: Karunya University