Microstructure mechanical behavior of Cu-Sn alloy reinforced with Al2o3 and Graphene metal matrix composite

Shakarappa, Raja; Peter, A. Arul; Kumar, P. Rathna; Mallikarjuna, M.V.; Padmanabhan, S.

doi:10.1016/j.matpr.2023.05.145

Cited by 1 publication

(1 citation statement)

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“…Friction stir processing involves two stages in this research (i) closing of the groove with the aid of a pin less tool so as to avoid the spilling of reinforcement from the grove and (ii) friction stir processing with the aid of a double tempered H13 steel FSP tool with 20 mm shoulder diameter, 6 mm pin diameter and 5 mm pin length. Studies have proved that the passing of pin less tool above the groove would help in closing the groove thereby compacting particles inside the groove itself [32][33][34][35][36]. Initial stage of compacting of powders through closing the groove was carried out at a rotational speed of 950 rpm for feed rate of 60 mm min −1 with the aid of a milling machine with displacement controlling facility.…”

Section: Methodsmentioning

confidence: 99%

Role of process parameters in defining the characteristics of copper surface composites fabricated via friction stir processing

Vinoj,

Raja,

Thankachan

et al. 2023

Eng. Res. Express

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This research deals with investigating the effects of amount of hybrid reinforcement, rotational speed and traverse speed on the mechanical and wear characteristics of copper surface composites fabricated via friction stir processing. Aluminum oxide and boron carbide at 1:1 ratio was dispersed onto copper substrate at various volume fractions (5, 10 and 15 vol. %) at different traverse speed (40, 60 and 80 mm/min) and rotational speed (800, 950 and 1300 rpm). Microstructural characterization of developed copper surface composites dispersed with varying volume fraction of hybrid reinforcement proved reduction in grain size and homogenous distribution of ceramic particles. Results stated that the percentage of particles dispersed, traverse speed and rotational speed have high impact in defining the property of developed copper surface composites. A positive trend in mechanical strength was observed throughout the study. Increase in hybrid reinforcement dispersion and traverse speed increases the microhardness value of developed surface composites while increase in rotational speed leads to reduction in microhardness value.

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