A5069330964- Shape Memory Alloy Transformations
- Additive Manufacturing Materials and Processes
- High Entropy Alloys Studies
- Additive Manufacturing and 3D Printing Technologies
- Laser Material Processing Techniques
- Laser and Thermal Forming Techniques
- Titanium Alloys Microstructure and Properties
- Welding Techniques and Residual Stresses
- Cellular and Composite Structures
- Magnesium Alloys: Properties and Applications
- Bone Tissue Engineering Materials
- Tribology and Lubrication Engineering
- Aluminum Alloys Composites Properties
- Advanced Surface Polishing Techniques
- Metal and Thin Film Mechanics
- Advanced machining processes and optimization
- Aluminum Alloy Microstructure Properties
- Composite Structure Analysis and Optimization
- Ferroelectric and Piezoelectric Materials
- Topology Optimization in Engineering
- Masonry and Concrete Structural Analysis
- Laser-induced spectroscopy and plasma
- Magnetic and transport properties of perovskites and related materials
- Corrosion Behavior and Inhibition
- Structural Engineering and Vibration Analysis
National Research Council
2016-2025
Institute of Condensed Matter Chemistry and Technologies for Energy
2016-2025
National Academies of Sciences, Engineering, and Medicine
2012-2024
National Research Council
2019
Institute for Energetics and Interphases
2011-2016
Bologna Research Area
2014
Alessandro Manzoni Hospital
2012-2014
Edison (Italy)
2012
Politecnico di Milano
2008-2009
The present work explores the processability of an advanced aluminum alloy, namely AlCu-TiB2, by selective laser melting (SLM), and correlation between microstructure mechanical properties as built specimens. principal process parameters emission in pulsed wave (PW) mode, power exposure time, were varied to achieve full density parts starting from prealloyed powders. Detailed analysis defects highest relative conditions was performed thzrough X-ray computed tomography. It found that density,...
Research at the mesoscale bone trabeculae arrangement yields intriguing results that, due to their clinical resolution, can be applied in field, contributing significantly diagnosis of bone-related diseases. While literature offers quantitative morphometric parameters for a thorough characterization network, there is gap understanding relationships among them, particularly context various pathologies. This research aims bridge these gaps by offering evaluation interplay and mechanical...
Abstract It is well known in the literature that fatigue particularly critical for Additive Manufacturing (AM) parts, because internal defects originating during AM process represent a site crack initiation. In literature, High‐Cycle‐Fatigue (HCF) response of parts has been extensively investigated; however, there are few results on Very‐High‐Cycle‐Fatigue (VHCF) behavior even if number machinery components may sustain VHCF rapidly increasing last years. The present paper investigates an...
Additive Manufacturing (AM) has risen great interest in biomedical applications, for its flexibility and the possibility of producing patient-customized devices. Customization high importance to limit inflammation rejection. Moreover, some occlusions may take place bifurcation sites, which require insertion multiple stents, increasing risk complexity procedure. Selective Laser Melting (SLM) can be exploited realize metallic stents with geometries not depending on tubular precursor, allowing...
Abstract In the paper, influence of annealing temperature on Very High Cycle Fatigue (VHCF) AlSi10Mg specimens produced through selective laser melting (SLM) is experimentally assessed. VHCF tests at 20 kHz are carried out Gaussian subjected to a heat treatment suggested by system supplier (heating for 2 hours 320°C and air cooling) proposed authors 244°C cooling). The defects originating failure conditional P‐S‐N curves compared. Experimental results show that an 320 ° C induces...
The present work explores the possibility of employing selective laser melting technique to produce parts in AlSi9Cu3 alloy. This alloy, currently prepared by high-pressure dye casting and intended for automotive application, may benefit from refined microstructure commonly induced additive manufacturing techniques. process parameters were systematically varied achieve full density, resulting defects studied. Thereafter, microstructural features analyzed, revealing that high cooling rate,...
Since several years the need for realizing small and smart devices composed of functional materials is constantly increasing. Among this advanced materials, shape memory alloys (SMAs) are some most important in applications, including biomedical aerospace fields. Nowadays, laser cutting probably widespread technology realising SMA mini- micro-devices applications. The present manuscript reviews scientific literature on performance laser-cut elements, NiTi SMA, under different points view....
The interest in the joining of Cu and Al alloys for some industrial sectors, such as electrical mobility one, has been growing recent years, despite their difficulties laser based processing. Welding by means lasers operating near-infrared (n-IR) field (typically 1060 nm) suffers from low absorption coefficient highly reflective materials, making these difficult inefficient. Recently, new sources have appeared on market, with emission at 450 nm (indicated blue radiation). Absorptivity is...
Thumb amputations strongly affect hand functionality in daily activities. The currently available solutions, such as microsurgical treatments and external vacuum prostheses present disadvantages, which can be successfully addressed through the osseointegration technique. However, despite its widespread use oral applications, only a few osseointegrated solutions for treatment of hand-finger are available. Bone remaining limbs may have different lengths, diameters, conditions no...
Fe-Mn based alloys are particular promising for the development of temporary bioabsorbable implants. They exhibit good performance in biological tests, improved mechanical properties and more adequate degradation rates than pure iron targeted application. In addition, this system possesses an excellent processability, making it suitable designing thin structures tailoring chemistry by alloying. Accordingly, earlier works indicated that adding Si to Fe-Mn, long-term behaviour could be...
Nowadays, additive manufacturing (AM) permits to realize complex metallic structural parts, and the use of NiTi alloy, known as Nitinol, allows integration specific functions AM products. One most promising designs for is concerning lattice structures that show lightweight, higher than bulk material deformability, improved damping properties, high exchange surface. Moreover, can be realized with struts, having dimensions below 1 mm—this very attractive realization Nitinol components...
The present work explores the feasibility of joining CoCuFeMnNi high entropy alloy by laser beam welding. An appropriate window is identified, and optimal process parameters (300 W power, scanning speed 20 mm s −1 , spot size 0.45 mm) are related to properties studied material. Cu's tendency segregate from other alloying elements found dominate microstructural evolution: welding induced formation Cu‐rich second phases within melted zone (MZ), as interdendritic phase, well in heat‐affected...