A5011798901- Aluminum Alloys Composites Properties
- Titanium Alloys Microstructure and Properties
- Advanced materials and composites
- Minerals Flotation and Separation Techniques
- Welding Techniques and Residual Stresses
- Advanced Welding Techniques Analysis
- Aluminum Alloy Microstructure Properties
- Metal Alloys Wear and Properties
- Mineral Processing and Grinding
- Microstructure and Mechanical Properties of Steels
- Intermetallics and Advanced Alloy Properties
- Shape Memory Alloy Transformations
- Materials Engineering and Processing
- Rocket and propulsion systems research
- Fluid Dynamics and Mixing
- Hydrogen embrittlement and corrosion behaviors in metals
- Manufacturing Process and Optimization
- Mine drainage and remediation techniques
- Orthopaedic implants and arthroplasty
- Advanced machining processes and optimization
- Electrical and Bioimpedance Tomography
- Bone Tissue Engineering Materials
- High-Temperature Coating Behaviors
- Nuclear Materials and Properties
- Advanced ceramic materials synthesis
Federico Santa María Technical University
2008-2023
Colorado School of Mines
2009-2011
This paper presents previously unavailable constants for the Sellars and Tegart constitutive model hot metalworking. The materials considered are aluminium alloys 2024, 5083, 6061, 7050, 7075 356, carbon steel 1018, stainless 304, titanium alloy 6Al–4V, magnesium AZ31 AZ61. These their mechanical properties at high temperature of great interest latest generation manufacturing processes involving deformation to accomplish solid state joining, such as friction stir welding, cold spray magnetic...
The development of titanium foams with a low elastic modulus has increased their scientific and technological relevance due to the evident need avoid stress shielding problems. In this work, we studied synthesis characterization Ti-13Zr-13Ta-3Nb (wt.%) alloy which present high potential for biomedical applications. A Ti-Nb-Ta-Zr mixture was produced by mechanical alloying using planetary mill. Ti were obtained NaCl as space-holder (40, 50, 60 v/v %) that mixed metallic powders compacted...
A thermodynamic analysis of the synthesis face-centred cubic (fcc) and body-centred (bcc) solid solutions Ti-based alloys produced by mechanical alloying was performed. Four were analysed: (i) Ti-13Ta-3Sn (at.%), (ii) Ti-30Nb-13Ta (iii) Ti-20Nb-30Ta (wt. %) (iv) Ti-33Nb-4Mn (at.%). The milled powders characterized X-ray diffraction, crystallite size microstrain determined using Rietveld Williamson–Hall methods. Gibbs free energy mixing for formation a solution three ternary systems...
The present work presents how scaling analysis can be applied into multiphysics and multicoupled problems related to welding processes. formation of the weld pool surface depression in high current velocity Gas Tungsten Arc Welding (GTAW) is dominated by gas shear acting on pool. Considering this dominant force penetration was estimated compared experimental results. Plastic deformation heat flow are coupled phenomena Friction Stir (FSW), maximum temperature using with numerical results...
Abstract This paper presents a coupled model of heat transfer and plastic deformation in friction stir welding (FSW), accounting for the temperature profile substrate near pin. approach is analogous to boundary layer analysis fluid mechanics based on methodology scaling calibration published data. A focusing common conditions FSW, such as relatively slow translation high rotation velocities, thin shear influence shoulder maximum was reformulated. extends previous work by considering flow...
This study aims at assessing and analyzing the effect on mechanical behavior temperatures between RT 350 °C of Cr additions (5% 10%) to a TWIP steel (Fe-22Mn-0.6C). We conducted tensile tests characterized microstructure after deformation by light microscopy, X-ray diffraction (XRD), FEG-SEM-EBSD. Different temperature-dependent strengthening mechanisms were determined. Mechanical twinning, dynamic strain aging, slip bands predominant mechanisms, with combination them depending stacking...
Attachment of bacteria Acidithiobacillus ferrooxidans to pyrite was investigated in two different environment: fresh water and saline (water with 35 g/L NaCl), both cases at pH 4. Adsorption isotherms were ?tted the Langmuir Freundlich models. The results showed that adhere a greater extent than water. models well data obtained water, showing coeffcient determination (R2) approximately equal 0.8 for On other hand, did not show good value 0.4