A5048238399- Additive Manufacturing Materials and Processes
- Welding Techniques and Residual Stresses
- High Temperature Alloys and Creep
- Additive Manufacturing and 3D Printing Technologies
- Advanced ceramic materials synthesis
- Aluminum Alloy Microstructure Properties
- High Entropy Alloys Studies
- Anodic Oxide Films and Nanostructures
- Microstructure and Mechanical Properties of Steels
- Titanium Alloys Microstructure and Properties
- Collagen: Extraction and Characterization
- Metallic Glasses and Amorphous Alloys
- High-Temperature Coating Behaviors
- Advanced materials and composites
- Cellular Mechanics and Interactions
- 3D Printing in Biomedical Research
- Mesoporous Materials and Catalysis
- Metal Forming Simulation Techniques
- Advanced Welding Techniques Analysis
- Fatigue and fracture mechanics
- Technology Assessment and Management
- Catalytic Processes in Materials Science
GAIKER Technology Centre
2018-2024
University of Birmingham
2018
Centro de Estudios e Investigaciones Técnicas de Gipuzkoa
2014-2016
Universidad de Navarra
2014
Cold metal transfer (CMT)-based wire and arc additive manufacturing (WAAM) of Ti-6Al-4V alloy has been investigated to manufacture walls with two different building strategies. This study focuses on the influence application thermal treatments resulting microstructure mechanical properties. Deep microstructural analysis revealed grades growth lamellae α phase after several at temperatures, which lead tensile properties better strength ductility balance compared as-built condition. Results...
The integrity of a load-bearing structure may degrade during service life due to undetected material defects or accidental damage. Additively manufactured structures are particularly susceptible fatigue cracking stress concentration at possible surface notches internal defects. Despite the advantages arc-based manufacturing techniques, it is still not comprehensively investigated how parts fail under cyclic loading. This study aims investigate effect on high-cycle behavior WAAM-fabricated...
Reduced hot cracking susceptibility is essential to ensure the flawless manufacturing of nickel superalloys typically employed in welded aircraft engine structures. The precipitation strengthened alloy 718 mainly depends on chemical composition and microstructure resulting from thermal story. Alloy usually a solution annealed state. However, even with this treatment, cracks can be induced during standard industrial conditions, leading costly time-consuming reworking. In work, wrought...
The CMT-Twin-based wire and arc additive manufacturing (WAAM) process for 5356 aluminium alloy has been investigated focusing on the optimisation of welding parameters to maximise deposition rate while avoiding segregation-related problems during solidification. For that, different conditions have studied regarding interpass dwell time use forced cooling. larger heat input produced by double-wire CMT-Twin process, compared single-wire CMT, creates vast segregations less intensive cooling...
Collagen gels have been extensively used as three-dimensional (3D) cell culture systems. To enhance their mechanical properties, the manufacture of collagen-based with agarose has proposed. However, little is known about stability these under cold storage conditions. The consequences on biological tissues for clinical applications are to be significant; yet, they not considered hydrogels in vitro experiments. This work studies effect extended collagen and collagen-agarose using rheometry...
The oxidation of highly porous ceramic matrix composites ( PCMC s) based on different Tyranno ® fibers has been analyzed by means thermogravimetry and electron microscopy. Both uncoated materials exhibit parabolic kinetics between 900°C 1250°C, these being faster for Ti‐doped than Zr‐doped fibers. Oxide layers in are partially crystalline, whereas a significant fraction relatively coarse β‐SiC grains is still found embedded the amorphous silica matrix. On other hand, CVD ‐SiC coatings higher...
In this work, weldability and hot cracking susceptibility of five alloy 718 investment castings in laser beam welding (LBW) were investigated. Influence chemical composition, with varying Si contents from 0.05 to 0.17 wt %, solidification rate, pre-weld heat treatment studied by carrying out three different tests, i.e., ductility, Varestraint, bead-on-plate after isostatic pressing (HIP) solution annealing treatment. Onset ductility drop was directly related the presence residual Laves...
Purpose There is still a need for comprehensive investigation into how wire and arc manufactured (WAAM) parts fail under cyclic loading. This study investigates the effect of process-induced defects on high-cycle fatigue performance WAAM-processed Ti-6Al-4V with dedicated thermal treatment. Furthermore, assesses applicability life prediction model, which was originally developed validated laser beam-welded joints, to WAAM-fabricated structures. Design/methodology/approach The assessment...
Currently available commercial remote laser beam welding (LBW) scanners allow a fast manipulation up to 1 KHz. In this work, wobbling (fast oscillation) was applied weld aluminium alloy (5754) sheets of 1.6 mm thickness that are subjected stamping processes later on. Influence process parameters (laser power and speed, incidence angle frequency amplitude) in quality T joint edge lap configurations studied. configuration, the use 4047 wire filler metal 1.2 diameter beneficial avoid excessive...