Articles written in Sadhana
Volume 46 All articles Published: 3 July 2021 Article ID 0131
In this research, the friction stir processing passes overlapping effect on AA3105/SiC is studied by evaluating the microstructural, mechanical, and tribological properties of the produced composites. The results indicated that the decrease of offset amount in different passes mediated by the more omogenous distribution of strengthening particles in the processing zone, the composite tensile strength and hardness have increased. The wear rate has decreased by 36%, compared with the sample without the strengthening phase. Also, no significant variations in the hardness, strength, and wear resistance is not seen by the friction stir processing on both sides of the sample. Although, the effect of tool shoulder induced flow is so strong that it restricts the uniform particlemixture and the access of pin-induced flow upwards the stirring region, but the offsetting decrease in the different passes reduces the tool shoulder-induce flow. The obtained highest tensile strength and the lowest wear rate of the fabricated composite equaled to 189.40 MPa and 3.6 x 10-6 gr/m, respectively.