A5017663741- Aluminum Alloys Composites Properties
- Aluminum Alloy Microstructure Properties
- Microstructure and mechanical properties
- Metallurgy and Material Forming
- Intermetallics and Advanced Alloy Properties
- Additive Manufacturing Materials and Processes
- Additive Manufacturing and 3D Printing Technologies
- Advanced ceramic materials synthesis
- Advanced Welding Techniques Analysis
- Magnesium Alloys: Properties and Applications
- High Entropy Alloys Studies
Indian Institute of Science Bangalore
2017-2024
National Institute of Technology Warangal
2022-2024
In the present investigation, microstructure and tensile properties of Al–12Ce, Al–12Ce–4Si, Al–12Ce–4Si–0.4Mg alloys (wt-%), fabricated by suction-casting (SC) gravity-casting (GC) were compared. The SC exhibited finer grains a higher number precipitates than GC alloys. Addition Si Mg in Al–12Ce alloy improved hardness substantially. Incorporation 4Si 0.4Mg enhanced yield stress but reduced ductility Al-12Ce-4Si-0.4Mg illustrated best strength. fracture behaviour changed from quasi-cleavage...
In this research, the hypereutectic Al–20Si alloy, containing an optimised amount of 4 wt-% γ-Al 2 O 3 and 0.1 strontium, was successfully synthesised through suction casting process. The cooling rate (563 K s −1 ) involved during solidification estimated by measuring secondary dendritic arm spacing. As a result, significant change in morphology silicon observed also led to formation small fraction refined α-Al throughout microstructure. work demonstrates that high tensile properties alloys...
The paper reports the design and development of wrought Al-Cu alloys that retain high strength until 250 °C. It is achieved by minor alloying Zr (<0.15 at%) Nb (<0.1 inducing precipitation stable nanometric dispersion L1 2 ordered precipitates during controlled thermomechanical treatment (rolling) cast before conventional heat (solutionizing ageing). rolling temperature was optimized to 450 °C quantitatively evaluating size distribution dispersions at different temperatures. influence...
The paper presents the microstructure-strength correlation of copper mould cast thin section Al-(6-8)Si-Cu (at%). efficacy small Zr addition (0.15at%) and three-stage heat treatment on these alloys for achieving superior high-temperature mechanical properties were evaluated. refines alloy microstructure, exhibits a feather-like eutectic morphology in interdendritic spaces supersaturation dendrites. Direct aging at 450 ℃ yields coherent, spherical, L12 order Al3Zr precipitates size 9-11 nm...
The role of Zr addition and a three-stage heat treatment to suction cast Al-(6-8)Si-Cu (at%) alloys are studied, emphasizing the microstructure, its stability, high-temperature tensile properties. 0.15 at% refines microstructure. casting resulted in high supersaturation dendrite interiors. When aged directly at 450 ℃, it leads fine, spherical, coherent L12 order Al3Zr precipitates size 9-11 nm α-Al matrix. After further ageing 190 ℃ following brief solutionizing 500 develop fine-scale...