A5000085423- Aluminum Alloys Composites Properties
- Aluminum Alloy Microstructure Properties
- Magnesium Alloys: Properties and Applications
- Corrosion Behavior and Inhibition
- Hydrogen embrittlement and corrosion behaviors in metals
- Microstructure and mechanical properties
- High-Temperature Coating Behaviors
- Advanced Materials Characterization Techniques
- Metallurgical Processes and Thermodynamics
- Microstructure and Mechanical Properties of Steels
- High Temperature Alloys and Creep
- Material Properties and Failure Mechanisms
- Advanced ceramic materials synthesis
- Bauxite Residue and Utilization
- Multiferroics and related materials
- Metal Extraction and Bioleaching
- Non-Destructive Testing Techniques
- Magnetic and transport properties of perovskites and related materials
- Graphene research and applications
- Force Microscopy Techniques and Applications
- Magnetic properties of thin films
- 2D Materials and Applications
- MXene and MAX Phase Materials
- Semiconductor materials and devices
McMaster University
2020-2025
University of Tehran
2015-2021
The grain refinement by dynamic recrystallization (DRX), the enhancement of room‐temperature strength and ductility decreasing hot extrusion temperature, effect growth at elevated temperatures are discussed for a newly developed as‐cast Mg–Gd–Al–Zn magnesium alloy. results supported fracture surface observations, texture analysis Schulz reflection method based on X‐ray diffraction (XRD), work‐hardening rate plots. It is found that alloys enhances, which related to weakening basal rare earth...
The effect of Gd/Al ratio on the properties as-cast Mg-Gd-Al-Zn alloys was investigated by changing chemical composition from that AZ61 to GZ61. At 1, Al2Gd phase becomes predominant and Mg17Al12 is hardly seen in microstructure. As a potent inoculant, resulted intense grain refinement enhancement strength, ductility toughness. For instance, tensile strength elongation failure Mg-3Gd-3Al-1Zn alloy were enhanced ~4% 180% compared with those alloy, respectively. However, at high ratios,...
Abstract Atom probe tomography (APT) enables three-dimensional chemical mapping with near-atomic scale resolution. However, this method requires precise sample preparation, which is typically achieved using a focused ion beam (FIB) microscope. As the induces some degree of damage to sample, it necessary apply protective layer over region interest (ROI). Herein, use redeposition, (frequently considered negative) side effect FIB sputtering, explored as technique for targeted surface coatings...
Liquid metal embrittlement (LME) in Zn-coated advanced high-strength steels (AHSSs) is an increasing concern, particularly automotive assembly, where it can cause early failure and reduce ductility during resistance spot welding (RSW). This study explores the impact of adding 0.2 wt% Mo on LME susceptibility 0.2C-2Mn-1.5Si AHSS through hot tensile testing, RSW, microstructural analyses, including atom probe tomography (APT) transmission electron microscopy (TEM). The results suggest that...
Altermagnetism refers to a wide class of compensated magnetic orders featuring sublattices with opposite spins related by rotational symmetry rather than inversion or translational operations, resulting in non-trivial spin splitting and high-order multipolar orders. Here, combining theoretical analysis, electrical transport, X-ray optical spectroscopies, nonlinear measurements, we establish phase diagram hybrid molecular beam epitaxy-grown RuO2/TiO2 (110) films, mapping the broken symmetries...
The microstructure and tensile properties of AZ80+X%Ca (X=0, 0.1, 0.5) magnesium alloy have investigated after applying extrusion process at 280 °C 340 °C. Optical scanning electron micrographs parallel to direction showed dynamically recrystallized grains. There were also initial grains elongated in the alloy. Finer microstructures observed by increasing calcium content due formation some precipitates during grain growth. EDS analysis determined newly formed as Al2Ca. size was reduced from...
Effect of 0.05, 0.1, 0.5, 1 and 3 (wt. %) Ca addition extrusion process on the microstructure tensile properties Mg-Mg2Si metal matrix composite has been studied by use optical microscopy (OM) standard testing. The average size primary Mg2Si particles decreased from 34 μm to about 10 with 0.05 (wt.%) also eutectic 20 2 μm. morphology altered octahedron fine polygonal more round shape phases well distuributed fragmented that was enhance mechanical in comparison as-cast specimens. Tensile test...
The microstructures and tensile properties of Mg–Al2Ca–Mg2Ca in situ composites (Mg–17Al–8Ca, Mg–14Al–11Ca Mg–12.5Al–12.5Ca) with different Ca/Al ratios have been studied both as-cast extruded conditions. results indicated that by increasing ratio, new Mg2Ca intermetallic introduces to the Al2Ca phase eutectic structure. Computer-aided cooling curve analysis confirmed formation these phases during solidification. Extrusion process not only altered size large bulk intermetallic, but also...
The oxidation- and air-stability of 2D gallium-intercalated monolayer epitaxial graphene was determined using correlative microscopy. Site-specific studies including AFM, scanning electron microscope, cross section STEM-HAADF, EELS revealed that the oxygen signal detected by XPS AES analyses originated from oxidized surface carbon contaminants without presence at gallium layers. In addition, correlated with intact graphene. absence leads to oxidation in air, consequently losing crystallinity...