A5016907945- Metallic Glasses and Amorphous Alloys
- Aluminum Alloys Composites Properties
- Aluminum Alloy Microstructure Properties
- Phase-change materials and chalcogenides
- Microstructure and mechanical properties
- High Entropy Alloys Studies
- Cellular and Composite Structures
- Glass properties and applications
- Metal Forming Simulation Techniques
- Magnesium Alloys: Properties and Applications
- Corrosion Behavior and Inhibition
- High-Temperature Coating Behaviors
- Metallurgy and Material Forming
- Quasicrystal Structures and Properties
- Metal and Thin Film Mechanics
- Advanced ceramic materials synthesis
- Concrete Corrosion and Durability
- Additive Manufacturing and 3D Printing Technologies
- Hydrogen embrittlement and corrosion behaviors in metals
- Material Science and Thermodynamics
- Nanoporous metals and alloys
- Advanced materials and composites
- Pickering emulsions and particle stabilization
- Magnetic Properties of Alloys
- Cultural Heritage Materials Analysis
Universidad Nacional Autónoma de México
2015-2024
Universitat Politècnica de Catalunya
2019
Pontificia Universidad Católica de Valparaíso
2016-2018
Instituto de Investigaciones en Ciencia y Tecnología de Materiales
2012-2016
University of Sheffield
2006-2012
Universidad Michoacana de San Nicolás de Hidalgo
2005
Additive manufacturing techniques such as Selective Laser Melting (SLM) can produce complex shapes with relatively thin sections and fine detail. However, common materials for the process, Ti-6Al-4V, have microstructure properties that are sensitive to pickup of interstitial impurities, oxygen, which material will be exposed during process. This problem would especially severe parts sections, where surface effects more significant, poor may coincide locally-elevated stress. Here we explore...
In this work we revisit vast amount of existing data on physical properties Ti-Zr-Nb-(Cu,Ni,Co) glassy alloys over a broad range concentrations (from the high entropy to that conventional Cu-, Ni- or Co-rich alloys). By using our new approach based total content late transition metal(s), derive number parameters hypothetical amorphous TiZrNb alloy: lattice parameter $a = (3.42 \pm 0.02)$\r{A}, Sommerfeld coefficient $\gamma 6.2\,$mJ/mol$\,$K$^2$, density states at $N(E_F) 2.6\,(\text{at...
Evolutionary algorithms have been used to solve several optimization problems, showing an efficient performance. Nevertheless, when these are applied they present the difficulty decide on appropriate values of their parameters. Typically, parameters specified before algorithm is run and include population size, selection rate, operator probabilities. This process known as offline control even considered problem in itself. On other hand, parameter settings or online a variation original...
Repetitive corrugation and straightening (RCS) is a process that induces cyclic plastic deformation on sheet geometries, reporting promising improvements in mechanical properties metals alloys. Alternative die as well the effect of over strain-hardenable alloys, have not been widely studied. In this work, sheets aluminum 5754 alloy were processed by RCS, using novel design to induce heterogeneous repetitive at room temperature. Numerical 3D Finite Element Analysis (FEA) was performed new...
The repetitive corrugation and straightening process is a severe plastic deformation technique that particularly suited to metallic sheets. With this technique, it possible develop nano/ultrafine-grained structured materials, therefore, improve some mechanical properties such as the yield strength, ultimate tensile fatigue lifetime. In study, an Al-6061 alloy was subjected process. A new die design proposed in order promote heterogeneous into sheet. evolution of microstructure obtained by...
The spirodioxynaphthalene preussomerin G, obtained from the fungus Pyrenochaetopsis sp. T1-41 (Plesosporales), was evaluated as a corrosion inhibitor in API 5L X70 steel samples. According to electrochemical impedance spectroscopy and polarization curves analysis, natural product showed good inhibition properties under static conditions two corrosive media. maximum efficiency (η = 91%) NaCl 3% medium with 5-ppm concentration. In 5% w/v-glacial acetic acid 0.5% v/v medium, charge transfer...
Abstract The development and mechanical characterization of a CoCr-based multiple-principal-element alloy are presented discussed. In this work, ab initio synthesis the (CoCr) 100- x (TiNbZr) ( = 0, 48 60, 78 100 % at) family is reported; these include calculation thermodynamic parameters such as mixing entropy (Δ S mix ), enthalpy H valence electron concentration (VEC), Ω δ factors . alloys were melted in vacuum arc furnace; rod-shaped ingots produced by suction casting. Phase was carried...
The solidification behavior of the Al-12.6% Si (A1), hypereutectic Al-20%Si (A2) and Al-20%Si-1.5% Fe-0.5%Mn (A3) (in wt. (%)) alloys, at different cooling rates is reported discussed. ranged between 0.93 °C/s 190 when cast in sand copper wedge-shaped molds, respectively. A spheroidization heat treatment was carried out to alloys as-cast condition 540 °C for 11 hours quench water with a subsequent 170 5 purpose improving mechanical properties. samples were characterized by optical...
This study discussed the effect of heterogeneous microstructure generated through Repetitive Corrugation and Straightening (RCS) process on mechanical stress corrosion cracking behavior AA7075. As a result RCS process, significant grain refinement was obtained. The average size ranged from 126 to 59 μm, for initial condition 4 passes, respectively. yield strength hardness increased 170% 15% pass, remaining almost constant afterward. evaluation showed decrement in number cracks 21.6% 23.5%...