A5032104784- Metal and Thin Film Mechanics
- Shape Memory Alloy Transformations
- Additive Manufacturing and 3D Printing Technologies
- Advanced materials and composites
- Diamond and Carbon-based Materials Research
- Additive Manufacturing Materials and Processes
- Aluminum Alloys Composites Properties
- Metal Alloys Wear and Properties
- Laser and Thermal Forming Techniques
- Injection Molding Process and Properties
- Magnesium Alloys: Properties and Applications
- High Entropy Alloys Studies
- Corrosion Behavior and Inhibition
- Laser Material Processing Techniques
- Advanced ceramic materials synthesis
- Tribology and Lubrication Engineering
- Structural Engineering and Vibration Analysis
- Electrodeposition and Electroless Coatings
- Innovations in Concrete and Construction Materials
- Masonry and Concrete Structural Analysis
- Tribology and Wear Analysis
- Hydrogen embrittlement and corrosion behaviors in metals
- Composite Structure Analysis and Optimization
- Structural Behavior of Reinforced Concrete
- Adhesion, Friction, and Surface Interactions
Politecnico di Milano
2015-2025
Fondazione Politecnico di Milano
2022-2023
Université Laval
2020
Polytechnic University of Turin
2012
Abstract This work aims at investigating the causes affecting dimensional and geometrical accuracy of holes in metal binder jetting stainless steel parts. Parallelepiped samples with a through hole were produced using AISI 316L 17-4PH powders, differing for diameter (3, 4, 5 mm), position axes respect to building plane (6, 9, 12 mm distance). Dimensions characteristics measured green sintered state by coordinate measuring machine, determining change characteristics. As expected, shrinkage...
Binder Jetting (BJT) is a non-fusion-based Additive Manufacturing (AM) technique. It consists of the selective deposition liquid binder to join powder particles, thus enabling creation near-net-shaped parts. In this study, main printing parameters correlated distribution and infiltration (binder saturation, set time, drying target bed temperature) were optimised improve precision green parts printed with potassium sodium niobate (KNN) powder. The optimisation procedure has been conducted...
Abstract Metal binder jetting (MBJ) is an additive manufacturing (AM) technology split into two process steps: printing and sintering. Firstly, product built up layer-by-layer by the selective deposition of a agent on powder bed. Secondly, thermal treatment (sintering) consolidates metal structure. MBJ currently becoming more attractive reason high potential scalability, cost-effective production wide range available material feedstocks. However, transition towards industrial scale...
Stainless steel 17-4PH is valued for its high strength and corrosion resistance but poses machining challenges due to rapid tool wear. This research investigates the use of pulsed electron beam surface treatment enhance properties components fabricated by binder jetting additive manufacturing. The aim improve tribological performance compared as-sintered condition H900 aging process, which optimizes hardness wear resistance. Printed samples were sintered in a reducing atmosphere...
Purpose Binder jetting of 17-4PH martensitic stainless steel is great interest to several industries that could exploit the higher degree geometrical complexity granted by 3D printing, thus this paper aims at providing a comprehensive description material development throughout multiple manufacturing stages and treatments. Design/methodology/approach In work, insight into as-sintered microstructure process effects on copper precipitation provided. Furthermore, conventional ageing treatments...
Structured surfaces exhibit functional properties that can enhance the performance of a bioimplant in terms biocompatibility, adhesion, or corrosion behavior. In order to tailor surface property, chemical and physical methods be used sequence many steps. On other hand, laser processing provide single step solution achieve designated function with use simpler equipment high repeatability. This work provides details on structuring AZ31, biocompatible biodegradable Mg alloy, by single-step...
Chrome plating is still one of the best solutions to coat martensitic steel used in molding plastics and rubbers. However, current stringent regulations on environmental impact call for more sustainable processes. In present work, some physical vapor deposition (PVD) nitride coatings were produced X155CrMoV12 characterized terms both corrosion behavior surface properties. Results indicated that titanium-based PVD could be a valuable alternative chromium-based as they exhibited good...