Sytentesis of Al-B4C composite coating on low carbon steel by mechanical alloying method

Abstract

In this study, the Al/B4C composite coatings were fabricated on the steel substrate by mechanical alloying method. A novel coating method, mechanical alloying, was used to layer a Fe-Al/ B4C composite coating on the surface of low-carbon steel. The coating process was performed in a planetary ball-mill using a milling time at 10 hrs, a ball-to-powder ratio of 10:1, and a ball-mill velocity of 200 rpm. During the mechanical alloying process, moving balls and 5 wt% B4C particles and 95 wt% Al powder were impacted the substrate surface The coating thickness, morphology and cross-section microstructure of the composite coatings were investigated by Scanning Electron Microscopy (SEM). Experimental results showed that the coatings were formed on the surface of the low-carbon steel substrate by the formation of Al/B4C composite.

Keywords

• Composites, coatings, mechanical alloying

Kaynakça

1. Sarikaya O, Anik S, Aslanlar S, Okumus SC and Celik E. Al-Si/B 4 C composite coatings on Al-Si substrate by plasma spray technique. Material Design, 2007; 28: 2443 – 2449.
2. Yandouzi M, Böttger AJ, Hendrikx RWA, Brochu M, Richer P, Charest A and Jodoin B. Microstructure and mechanical properties of B 4 C reinforced Al-based matrix composite coatings deposited by CGDS and PGDS processes. Surface and Coating Technology, 2010; 205: 2234 – 2246.
3. Lee BS and Kang S. Low-temperature processing of B 4 C–Al composites via infiltration technique. Materials Chemistry and Physics, 2001; 67: 249 – 255.
4. Tuncer N, Tasdelen B and Arslan G. Effect of passivation and precipitation hardening on processing and mechanical properties of B 4 C–Al composites. Ceramics International, 2011; 37: 2861 – 2867.
5. Dobrzanski LA, Włodarczyk A and Adamiak M. Structure, properties and corrosion resistance of PM composite materials based on EN AW-2124 aluminum alloy reinforced with the Al 2 O 3 ceramic particles. Journal of Materials Processing Technology, 2005; 162-163: 27 – 32.
6. Yao M, He Y, Zhang Y and Yang Q. Al 2 O 3 -Y 2 O 3 nano and micro composite coatings on Fe-9Cr-Mo alloy. Journal of Rare Earths, 2006; 24: 587 – 590.
7. Chao MJ, Niu X, Yuan B, Liang EJ and Wang DS. Preparation and characterization of in situ synthesized B 4 C particulate reinforced nickel composite coatings by laser cladding. Surface and Coating Technology, 2006; 201: 1102 – 1108.
8. Torosyan A and Takacs L. Journal of Materials Processing Technology, 2004; 39: 5491 – 5494.

9. Takacs L and Torosyan AR. Surface mechanical alloying of an aluminum plate. Journal of Alloys and Compound, 2007; 434: 686 – 688.
10. Zhan Z, He Y, Wang D and Gao W. Low-temperature processing of Fe–Al intermetallic coatings assisted by ball milling. Intermetallics, 2006; 14: 75 – 81. Krasnowski M, Grabias A and Kulik T. Phase transformations during mechanical alloying of Fe–50% Al and subsequent heating of the milling product. Journal of Alloys and Compound, 2006; 424: 119 – 127.
11. Suryanarayana C. Mechanical alloying and milling. Progress in Material Science, 2001; 46: 1 – 184.
12. Gu D and Shen Y. Microstructures and properties of high Cr content coatings on inner surfaces of carbon steel tubular components prepared by a novel mechanical alloying method. Applied Surface Science, 2009; 256: 223 – 230.
13. Li B, Ding R, Shen Y, Hu Y and Guo Y. Preparation of Ti–Cr and Ti–Cu flameretardant coatings on Ti–6Al–4V using a high-energy mechanical alloying method: A preliminary research. Materials and Design, 2012; 35: 25 – 36.
14. Pouriamanesh R, Khaki JV and Mohammadi Q. Coating of Al substrate by metallic Ni through mechanical alloying. Journal of Alloys and Compound, 2009; 488: 430 – 4