Dry sliding wear behaviour of micro and nano high entropy Fe-Cr slag particulates reinforced AA 7075 composites
| Autor: | M. Kumar Raja, I. Gopi Lakshmi, Y. Ravi Kanth, J. BabuRao, N.B.R. Mohan Rao |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Materials science Nanocomposite Scanning electron microscope Composite number Alloy 02 engineering and technology General Medicine Particulates engineering.material 021001 nanoscience & nanotechnology 01 natural sciences visual_art 0103 physical sciences Nano visual_art.visual_art_medium engineering Ceramic Slag (welding) Composite material 0210 nano-technology |
| Zdroj: | Materials Today: Proceedings. 42:590-599 |
| ISSN: | 2214-7853 |
| DOI: | 10.1016/j.matpr.2020.10.674 |
| Popis: | In metal matrix composites (MMCs), matrix materials are reinforced with various kinds of ceramic particulates to obtain optimum and tailor-made properties. The Fe-Cr slag consists of SiO2, Al2O3 and MgO with high entropy values. In the present investigation was conducted to synthesize the AA 7075 Fe-Cr slag particulate reinforced composites through stir casting technique. Studies were focused on particles size effects.For this two types of composites with reinforcement of micron (36 μm) and nano-size (68 nm) of 5% wt. of Fe-Cr slag, particulates were chosen. As cast and peak, aged samples were characterized for its metallurgical and mechanical properties. In the peak aged condition, the wear test is done.Wear morphology studies of base alloy and the composites have been carried out by scanning electron microscopy. Nanocomposite showed enhanced propertieswhich also exhibits better wear resistance in all the loads and longer sliding distances than micro composite or base alloy. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect