Processing and properties of CuAl 2 intermetallic coatings
Source abstract
Abstract
CuAl 2 intermetallic powders were consolidated using an atmospheric plasma spraying process. Based on X-ray diffractometry results, no phase change occurred during thermal spraying. The investigation of optical micrographs showed that about 7% porosity was present in the microstructure of the coatings. The coatings showed hardness value up to 575 HV(50 g). The polarisation tests and electrochemical spectroscopy measurements were utilised for electrochemical investigation of the coatings in 1 M H 2 SO 4 and 3.5% NaCl media. In H 2 SO 4 environment, the coated and uncoated samples showed similar corrosion rates. However, the coating showed a lower corrosion rate than the substrate in NaCl solution by an order of magnitude. Corrosion of the steel substrate occurred in the NaCl solution, no corrosion was observed in the H 2 SO 4 . GRAPHICAL ABSTRACT
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Advanced materials and composites · Nanoporous metals and alloys · High-Temperature Coating Behaviors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Advanced Materials Research Center, Department of Materials Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran
References (21)
Show source-provided references
1. 10.1016/j.actamat.2011.05.04110.1016/j.actamat.2011.05.041 ↗
2. 10.1016/j.microrel.2013.02.02010.1016/j.microrel.2013.02.020 ↗
3. 10.1016/j.intermet.2015.02.01510.1016/j.intermet.2015.02.015 ↗
4. 10.1016/j.jallcom.2014.12.11910.1016/j.jallcom.2014.12.119 ↗
5. 10.1016/j.jallcom.2006.10.01010.1016/j.jallcom.2006.10.010 ↗
6. 10.1016/j.jssc.2006.03.00610.1016/j.jssc.2006.03.006 ↗
7. 10.1557/JMR.2010.010110.1557/JMR.2010.0101 ↗
8. 10.1016/0040-6090(81)90506-X10.1016/0040-6090(81)90506-X ↗
9. 10.1016/j.surfcoat.2012.01.06510.1016/j.surfcoat.2012.01.065 ↗
10. 10.1007/BF0045561910.1007/BF00455619 ↗
11. Altuncu E. · Mater. Technol. · 2012 · 46 · 181
12. Davis J. R. · 2008
13. Pakseresht A. · J. Adv. Mater. Proc. · 2014 · 2 · 25
14. 10.1007/BF0055529610.1007/BF00555296 ↗
15. ‘Metals handbook, Alloy Phase Diagrams’, 10th edn, Vol. 3, 1998, ASM.
16. 10.2320/matertrans.MER200637110.2320/matertrans.MER2006371 ↗
17. Sauthoff G. · 2008
18. 10.1016/S0921-5093(00)01809-810.1016/S0921-5093(00)01809-8 ↗
19. Fontana M. G. · 1997
20. 10.1002/047171624310.1002/0471716243 ↗
21. 10.1039/B919313H10.1039/B919313H ↗