Study of geometric parameters and TiC reinforcements in aluminium metal matrix composite on fracture toughness using Taguchi method
| Autor: | M.S. Raviraj, G C Manjunath Patel, C.M. Sharanaprabhu |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Titanium carbide Materials science Metal matrix composite Alloy chemistry.chemical_element 02 engineering and technology engineering.material 021001 nanoscience & nanotechnology 01 natural sciences chemistry.chemical_compound Taguchi methods Fracture toughness chemistry Aluminium 0103 physical sciences Fracture (geology) engineering Composite material 0210 nano-technology Elastic modulus |
| Zdroj: | Materials Today: Proceedings. 46:8900-8904 |
| ISSN: | 2214-7853 |
| DOI: | 10.1016/j.matpr.2021.05.358 |
| Popis: | In aluminum alloy, Titanium carbide (TiC) reinforcements act as nucleation sites and refine grain structure during solidification. Al-TiC particulate composites find major applications in structural and automobile parts due to their attractive features such as high elastic modulus and hardness. Therefore, attempts are made in the present work to know the fracture behavior of metal matrix composites prepared with varied fraction of reinforcement particles (3 wt%, 5 wt%, 7 wt% of TiC) under various notch sizes of the compact tension (CT) specimen. Al6061-TiC MMCs compact tension specimens are prepared as per ASTM E399 standards, to examine the fracture toughness (KIC). The CT specimens are machined to obtain the desired geometry i.e. crack to width (a/W) ratio of 0.3, 0.4 and 0.5 and thickness to width (B/W) ratio of 0.3, 0.4, and 0.5. Taguchi L9 orthogonal array experiments are conducted to study the effect of the factors (TiC reinforcements, a/W and B/W) on the performance of fracture toughness of the composites. The contribution of each factor is evaluated on the fracture toughness of Al6061-TiC composites. The maximum values of fracture toughness was observed for the optimized set of Al6061-TiC (3 wt%), a/W ratio and B/W ratio maintained equal to 0.4. Taguchi method results could help any novice user in obtaining the optimum fracture toughness without much efforts, materials and time. |
| Databáze: | OpenAIRE |
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