Investigation on effects of graphite particle on the mechanical properties of stir cast AA6061-Gr MMCs

Kumar, Pankaj; Srivastava, Jay Prakash; Kaleem, Md.

doi:10.1016/j.matpr.2020.07.644

Cited by 4 publications

(1 citation statement)

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“…To meet the needs for advanced composites, it is important to achieve a relatively high ductility when pursuing a higher-strength composite. To achieve higher performance, many new reinforcements and matrices are matched to obtain ideal combinations of the composite [ 4 , 5 , 6 ]. The existence of the particle reduces the ductility, which limits the application of the PRMMCs in the engineering field.…”

Section: Introductionmentioning

confidence: 99%

Strengthening and Weakening Effects of Particles on Strength and Ductility of SiC Particle Reinforced Al-Cu-Mg Alloys Matrix Composites

et al. 2021

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The strengthening and weakening effects of SiC particles on composite strength and ductility were studied. Al-Cu-Mg alloys matrices with three different mechanical properties were used. Their yield strength, ultimate strength, and elongation range from 90 to 379 MPa, 131 to 561 MPa, and 18% to 31%, respectively. SiC particles with sizes of 4, 8, 12, 15, 20, and 30 μm were used to reinforce these three matrices, separately, and the composites of eighteen combinations of the particle sizes and matrix strengths were manufactured. Yield strength, ultimate strength, elongation, and fracture morphology of these composites were characterized. Based on the analysis, the strengthening to weakening behavior on strength and ductility were comprehensively discussed. The critical particle size having the best ductility was obtained. The strengthening limit and match range of the particle and the matrix to achieve effective strengthening were defined as a function of the particle size and matrix strength. This work offers an important reference for optimization of mechanical properties of the particle-reinforced metal matrix composites.

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Section: Introductionmentioning

confidence: 99%