Open AccessMechanical and Tribological Characteristics of Aluminium 2618 Matrix Composite Reinforced with Boron Carbide
Author(s) -
Sharath Peramenahalli Chikkegouda,
Rayappa Shrinivas Mahale
Publication year - 2021
Publication title -
biointerface research in applied chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.216
H-Index - 11
ISSN - 2069-5837
DOI - 10.33263/briac124.45444556
Subject(s) - materials science , boron carbide , taguchi methods , tribology , diffractometer , composite material , scanning electron microscope , composite number , ceramic , aluminium , orthogonal array , metallurgy
Aluminium-based alloys are mainly used for bearing and automotive applications, resulting in more wear and tear of the material. Boron Carbide (B4C), hard ceramic materials used as reinforcement in Al2618 matrix material, was fabricated using the stir casting method. The presence and distribution of the B4C particles were confirmed by X-ray diffractometer (XRD) and Scanning Electron Microscopy (SEM). Taguchi’s design of experimental approach was employed to study the wear characteristics using the L27 orthogonal array. Optimization of parameters like applied load (20, 30, and 40 N), sliding distance (400, 600, and 800 m), and sliding speed (1.25, 2.51, and 3.76 m/s) were done using Signal-to-Noise ratio analysis and Analysis of Variance (ANOVA). Results revealed that speed (46.77%) had more influence on wear behavior, followed by sliding distance (34.74%) and load (9.81%). SEM images of the worn-out composite specimens exhibited an adhesive type of wear mechanism with deep grooves from hard B4C particles.