HEAfilmonMg · Fabrication & characterisation of protective HEA films on Mg substrate by mechanical alloying, cold spraying & post-surface laser annealing processing
Horizon 2020 — Marie Skłodowska-Curie Actions
- Duration
- 2021-11-01 → 2023-10-31
- EU contribution
- €196,591
- Participants
- 1
- Scheme
- MSCA-IF
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Results in brief
Fabrication & characterisation of protective HEA films on Mg substrate by mechanical alloying, cold spraying & post-surface laser annealing processing
Development & fabrication of Mg/Mg-alloys protective coating/repair applications, identified as having the greatest economic & financial benefits for the aerospace sector, machinery, automotive, railway vehicle industries, medical, sport, computers/electronics, optical equipment and household working tools industry movable parts by depositing protective Al(Mn)-HEA (high entropy alloys) coatings on Mg/Mg-alloy parts with MA (mechanical alloying) + CS (cold spray) + post-vacuum annealing (VA) processing which is a promising, cost-effective & environmentally acceptable technology to impart surface protection & restore dimensional tolerances (repair) to Mg alloy components. Motivation to Solve the Technical Problem: Magnesium alloys, widespread in stress-bearing applications (movable parts in helicopters/vehicles) do have short lives due to corrosion/wear & protective films are anxiously awaited by many different industrial application. Proposed solution: Not only to repair (restore dimensional tolerances) damaged Mg-based parts but also to impart surface protection to fresh/damaged Mg-based parts, a revolutionary, radically new/impactful technology of powder metallurgy (MA) & additive manufacturing processing (CS and VA) was used. Objectives of the project: 1-Feasibility proof of producing protective Al(Mn)-HEA coatings on Mg parts for automotive & aircraft industry. 2-Characterization & Testing: Investigation of microstructures & properties of MA-HEA powder feedstocks, HEA CS+VA coating deposits. 3-Promoting widespread understanding of the project`s technical content, at a variety of expertise levels, through appropriate reporting, exploitation, dissemination, communication & public engagement.
Data: CORDIS, © European Union
Project objective
Protective high entropy alloys (HEA) thin films/coatings on Mg substrate will be produced by mechanical alloying (MA), cold spraying (CS) and post-surface laser annealing (SLA) process. By using variable but controlled MA process and CS coating parameters (HEA feedstock powder & HEA MAed powder characteristics, CS technology geometric parameters, CS deposition parameters), variations in the micro-structure and property in HEA coatings will be attained. Microstructural characterization of HEA feedstock powders, MAed powders, CS coatings and CS+post-SLA coatings will be carried out by SEM, TEM, XRD, porosity measurements. Wear, oxidation, corrosion tests, hardness and elongation measurements will be made to determine chemical and mechanical properties of coatings. With this way relationships among deposition parameters-microstructure-properties will be determined in addition to the feasibility study of producing protective (wear and oxidation resistant) HEA coatings on Mg-parts by combined MA+CS & post- SLA process.
Original text from CORDIS.
Participants
- THE PROVOST, FELLOWS, FOUNDATION SCHOLARS & THE OTHER MEMBERS OF BOARD, OF THE COLLEGE OF THE HOLY & UNDIVIDED TRINITY OF QUEEN ELIZABETH NEAR DUBLIN · DublinCoordinatorIreland
Links
- View on CORDIS
- DOI: 10.3030/101018482
- https://www.tcd.ie/mecheng/research/stam/research/projects/current/mariecurie/php
Data: CORDIS, © European Union