Study of the Direct Metal Deposition of AA2024 by ElectroSpark for Coating and Reparation Scopes
Source abstract
Abstract
ElectroSpark Deposition (ESD) is a pulsed micro-welding process that is capable of depositing wear and corrosion resistance deposit to repair, improve, and to extend the service life of the components and tools. Major new applications have taken place in gas turbine blades and steam turbine blade protection and repair, and in military, medical, metal-working, and recreational equipment applications. In this study, the ESD technique was exploited to fabricate 2024 aluminum alloy deposit on a similar substrate. The deposits were deposited using different process parameters. Heat input was varied on three levels. The outcoming microstructure was analyzed by optical and scanning electron microscopies. The deposit was characterized by the overlapping of layers with a mixed microstructure. The average hardness was independent from the process parameters. Both porosity inside the deposits and cracks at the deposit/substrate interface were detected. The porosity lowered with the heat input and increased the average length of cracks.
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Research context
OpenAlex topics: Surface Treatment and Coatings
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Innovation Engineering Department, University of Salento, Via per Arnesano s.n., 73100 Lecce, Italy
DMMM, Politecnico di Bari, Viale Japigia, 182, 70124 Bari, Italy
References (40)
Show source-provided references
1. A study on the effect of a dynamic contact force control for improving electrospark coating properties10.1016/j.surfcoat.2010.02.006 ↗
2. Production of amorphous and nanocrystalline iron based coatings by electro-spark deposition process10.1016/j.surfcoat.2015.03.016 ↗
3. Investigation on direct laser powder deposition of 18 Ni (300) marage steel using mathematical model and experimental characterization10.1007/s00170-016-9135-x ↗
4. Statistical analysis and optimization of direct metal laser deposition of 227-F Colmonoy nickel alloy10.1016/j.optlastec.2017.03.027 ↗
5. Electro-Spark Coating with Special Materials
6. Davis, J.R. (1993). ASM Specialty Handbook: Aluminum and Aluminum Alloy, ASM International.
7. Welding vs. Riveting—Which Has the Fatigue Life for Airplanes
8. Kou, S. (1986). Welding Metallurgy and Weldability of High Strength Aluminum Alloys, Welding Research Council Bulletin.
9. The relation between liquation and solidification cracks in pulsed laser welding of 2024 aluminium alloy10.1016/j.msea.2009.04.056 ↗
10. Effect of welding parameters on the solidification microstructure of autogenous TIG welds in an Al-Cu-Mg-Mn alloy10.1016/S0921-5093(98)00873-9 ↗
11. Oates, W.R. (1972). Materials and Applications, AWS. [8th ed.].
12. Current issues and problems in laser welding of automotive aluminium alloys10.1179/095066099101528298 ↗
13. Research and Progress in Laser Welding of Wrought Aluminum Alloys. II. Metallurgical Microstructures, Defects, and Mechanical Properties10.1081/AMP-120017587 ↗
14. Bulk nanostructure and amorphous metallic components using the electrospark welding process10.1108/01445151011061145 ↗
15. Champagne, V., Pepi, M., and Edwards, B. (2006). Electrospark Deposition for the Repair of Army Main Battle Tank Components, Army Research Laboratory.10.21236/ADA453366 ↗
16. Johnson, R.N. (1999, January 15–19). Robust coatings for corrosion and wear: The electrospark deposition process. Proceedings of the Tri- service conf. on corrosion, Myrtle Beach, SC, USA.
17. Cadney, S. (2007). Welding and Weld Repair of Nanostructured and Amorphous Materials. [Master′s Thesis, McGill University].
18. Development of Metastable Solidification Structures Using the Electrospark Deposition Process10.2174/1876531901103010105 ↗
19. Perju, M.C., Vizureanu, P., and Nejneru, C. (2014, January 22–24). The study of energy transfer on thin layers achieved by electro-spark deposition with tic electrode. Proceedings of the International Conference of Scientific Paper Afases, Brasov, Romania.
20. Mechanism of Building-Up Deposited Layer during Electro-Spark Deposition
21. Electro-spark Deposition of Fe-based Amorphous Alloy Coatings10.1016/j.matlet.2006.04.042 ↗
22. Comparative study of microstructural characteristics of electrospark and Nd:YAG laser epitaxially growing coatings10.1016/j.apsusc.2007.01.029 ↗
23. Epitaxial MCrAlY coating on a Ni-base superalloy produced by electrospark deposition10.1016/j.surfcoat.2006.08.107 ↗
24. Microstructural morphology of electrospark deposition layer of a high gamma prime superalloy10.1016/j.surfcoat.2005.12.034 ↗
25. Study on corrosion characteristic of high-energy micro-arc alloying of Al-Y electrode on AZ31 magnesium alloy
26. Development of a nanostructure microstructure in the Al-Ni system using the electrospark deposition process10.1016/j.jmatprotec.2010.02.001 ↗
27. Formation of amorphous Zr41.2Ti13.8Ni10Cu12.5Be22.5 coatings via the ElectroSpark Deposition process10.1016/j.intermet.2007.12.013 ↗
28. Isothermal oxidation behavior of electrospark deposited MCrAlX-type coatings on a Ni-based superalloy10.1016/j.jallcom.2009.01.100 ↗
29. A feasibility study of preparing MCrAlX/BN composite coatings by electrospark deposition process10.1016/j.jallcom.2009.05.017 ↗
30. Mondolfo, L.F. (1976). Aluminium Alloys: Structure and Properties, Butter-Worth.10.1016/B978-0-408-70932-3.50008-5 ↗
31. Surface modification of resistance welding electrode by electro-spark deposited composite coatings: Part I. Coating characterization10.1016/j.surfcoat.2006.02.015 ↗
32. Characterization and wear behavior of WC-0.8Co coating on cast steel rolls by electro-spark deposition
33. Kurz, W., and Fisher, D.J. (1998). Fundamentals of Solidification, CRC Press. [4th ed.].10.4028/www.scientific.net/RC.35 ↗
34. Porter, D.A., and Easterling, K.E. (1992). Phase Transformations in Metals and Alloys, CRC Press.10.1007/978-1-4899-3051-4 ↗
35. Messler, R.W. (1999). Principles of Welding, John Wiley & Sons.10.1002/9783527617487 ↗
36. Microstructural characteristics of the built-up layer of a precipitation hardened nickel based superalloy by electrospark deposition10.1016/j.surfcoat.2014.08.045 ↗
37. Tang, S.K. (2009). The Process Fundamentals and Parameters of Electro-Spark Deposition. [Master’s Thesis, University of Waterloo].
38. Electrospark Deposition for Die Repair
39. Liquation cracking in partial penetration aluminium welds: Assessing tendencies to liquate, crack and backfill10.1179/136217104225017071 ↗
40. Kou, S. (2002). Welding Metallurgy, John Wiley & Sons.10.1002/0471434027 ↗