| Autor: |
Maurya, Saurabh Kumar, Susheel, Chander Kant, Manna, Alakesh |
| Zdroj: |
Transactions of the Indian Institute of Metals; September 2024, Vol. 77 Issue: 9 p2739-2750, 12p |
| Abstrakt: |
Aluminium metal matrix composites (AMMCs) are replacing the monolithic alloys for advance engineering applications in industries. Present work appraised the use of fragmented aluminium with the reinforcement of SiC, ZrO2and NiTi mixture. Mechanical and microstructural properties of fabricated AMMCs were evaluated, and it was found that fabricated composites have finer grain structure compared to the base alloy. Tensile strength of base alloy was enhanced by 44.8% due to refinement of the grains, shear lag and bowing of dislocations. The maximum value of compressive strength, microhardness and impact strength was found in composite with 3wt% reinforcement of each of SiC, ZrO2and NiTi. The transformation of ductile to cleavage fracture was confirmed by fracture morphology. Tribological analysis reveals that the material loss due to wear and roughness of worn-out surfaces was decreased by the accumulation of reinforcement. |
| Databáze: |
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