Vol.26, No.1, 2026, pp. 109–116
https://doi.org/10.69644/ivk-2026-01-0109

UTICAJ KERAMIČKIH MIKRO ČESTICA BOR-KARBIDA NA MEHANIČKO FRAKTOGRAFSKO PONAŠANJE KOMPOZITNIH LEGURA Al2005

El-Sayed M. Sherif1 , Osamah J. Al-Sareji2, Sunil Kumar Shetty3 , Madeva Nagaral4* , Virupaxi Auradi5 , Pankaj Kumar Chauhan6 , Abhinav Kumar7, A. Bhowmik8, Abhishek Bhattacherjee9, Raman Kumar10, Rajendra P.11

1) Mechanical Engineering Department, College of Engineering, King Saud University, Riyadh, SAUDI ARABIA

E.-S.M. Sherif https://orcid.org/0000-0003-2080-8552

2) Sustainability Solutions Research Lab, Faculty of Engineering, University of Pannonia, Veszprem H, 8200, HUNGARY

3) Department of Mechanical Engineering, Nitte (Deemed to be University), NMAM Institute of Technology, Karkala-574110, Karnataka, INDIA

S.K. Shetty https://orcid.org/0000-0002-8939-8718

4) Aircraft Research and Design Centre, Hindustan Aeronautics Limited, Bangalore 560037, Karnataka, INDIA

M. Nagaral https://orcid.org/0000-0002-8248-7603 , *email: madev.nagaral@gmail.com

5) Department of Mechanical Engineering, Siddaganga Institute of Technology, Tumakuru 572103, Karnataka, INDIA

V. Auradi https://orcid.org/0000-0001-6549-6340

6) Department of Mechanical Engineering, Galgotia University, Greater Noida-203201, Uttar Pradesh, INDIA

P.K. Chauhan https://orcid.org/0000-0002-0467-7823

7) Department of Mechanical Engineering, Karpagam Academy of Higher Education, Coimbatore-641021, INDIA

8) Chitkara Centre for Research and Development, Chitkara Uni-versity, Pinjore, Himachal Pradesh, INDIA

9) Department of Computer Science Engineering, Lovely Profes¬sional University, Punjab, INDIA

10) Department of Mechanical and Production Engineering, Guru Nanak Dev Engineering College, Ludhiana 141006, Punjab, INDIA

11) Department of Mechanical Engineering, Ramaiah Institute of Technology, Bangalore, INDIA

 

Izvod

U ovom radu bavimo se istraživanjem proizvodnje kompozita od legure Al2005 i B4C primenom metode metalurgije u tečnom stanju. Legura Al2005 se uvodi za izradu kompozita sa 4 i 8 težinskih procenata čestica B4C. Mikrostruktura proizvedenih kompozita se ispituje skening elektronskom mikroskopijom (SEM) i energetskom disperzivnom rendgenskom spektroskopijom (EDS). Gustina, tvrdoća, zatezna čvrstoća, napon tečenja, i izduženje se određuju prema standardu ASTM E8 za ispitivanja zatezanjem i prema standardu E10 za ispitivanje tvrdoće. Nepromenljiva raspodela B4C čestica unutar legure Al2005 se proverava SEM. Analize EDS ukazuju na postojanje B4C čestica unutar legure Al2005. Uvođenjem lakih čestica B4C u matricu se smanjuje gustina kompozita od legure aluminijuma. Prisustvo čestica dovodi do poboljšanja tvrdoće, zatezne čvrstoće, i napona tečenja legure Al2005 za 33,73 %, 36 % i 41,84 %, respektivno. Mikrosnimci prelomnih površina dobijenih zatezanjem pružaju dodatni dokaz za uočljive osobine loma kod legura Al2005 i njihovih kompozita.

Ključne reči: • legura Al2005 • čestice B4C • mikrostruktura • tvrdoća • zatezna čvrstoća  

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