Fatigue Behaviour of Al‐Matrix Composites

Abstract

The cyclic deformation behaviour and fatigue lives of different Al‐matrix composites reinforced by alumina reinforcements were investigated under total strain control mode at room temperature. The composites differ in either matrix strength (peak aged vs. overaged AA6061 alloy and soft Al99.85, respectively) and/or type of reinforcement (particles, Saffil short fibres and Almax continuous fibres). The damage evolution was characterized by compliance experiments within individual stress‐strain hysteresis loops. The differences of the material behaviour are discussed with respect to matrix strength and reinforcement geometry.

Dry sliding wear response of aluminium matrix composites (AMCs): a critical review

“…Wear is the steady material loss caused by surfaces coming into contact with one another when they are being loaded [76]. A better understanding of various wears, including sliding [77], abrasive [78], corrosive [79], and fatigue [80], can result in the creation of wear reduction techniques that are more efficient. Al alloys used for sliding and abrasive wear are primarily based on an Al-Si alloy and are typically utilized in industrial sceneries [81].…”

Residual stress and damage development in the aluminium alloy EN AW-6061 particle reinforced with Al2O3 under thermal fatigue loading

“…In strain controlled mode, the higher Young's modulus of the MMCs causes larger stress amplitudes which result in a reduced LCF and HCF lifetime of particle reinforced MMCs [4,7,8].…”

Influence of Mg-PSZ Particle Size on the Fatigue Behaviour of a High Alloy Steel Matrix Composite

“…Metal Matrix Composites (MMC) have been under investigation over the last decades and showed enhanced mechanical properties in terms of strength, stiffness and wear resistance compared to the unreinforced material [1]. Moreover, the fatigue properties were observed as well, finding that the deformation behaviour of discontinuously reinforced MMCs was dominated by the volume fraction [2,3,4,5,6], size [2,7,8] and morphology of the particles as well as the strength of the metallic matrix [4,9]. In the most cases the latter consists of lightweight materials like titanium, aluminium or magnesium.…”