A5015319138- Aluminum Alloys Composites Properties
- Magnesium Alloys: Properties and Applications
- Aluminum Alloy Microstructure Properties
- Hydrogen Storage and Materials
- Microstructure and mechanical properties
- Metal Alloys Wear and Properties
- High Entropy Alloys Studies
- Advanced materials and composites
- Metal and Thin Film Mechanics
- Additive Manufacturing Materials and Processes
- Surface Treatment and Residual Stress
- MXene and MAX Phase Materials
- Mobile Ad Hoc Networks
- Powder Metallurgy Techniques and Materials
- Microstructure and Mechanical Properties of Steels
- Magneto-Optical Properties and Applications
- Vehicular Ad Hoc Networks (VANETs)
- Surface Treatment and Coatings
- Caching and Content Delivery
Harbin University of Science and Technology
2006-2024
The microstructure and mechanical properties of Mg-4Y-3Nd-xAl (x = 0, 0.6, 0.9, 1.2, 1.5, 2.0%) alloys were investigated in the present work. results show that addition Al can refine grain as-cast Mg-4Y-3Nd alloy significantly. refining effect increases first then decreases with increasing addition. size is smallest when 1.5%. reason for refinement in-situ Al2RE particles reacted RE serve as α-Mg matrix. orientation relationship between was determined by TEM analysis:...
In this paper, the effect of cooling rate on solidification behaviour, microstructure evolution and mechanical properties Al-refined Mg-9Gd-4Y-1Zn was studied. As decreased, grain size increased when 32.5°C/s, smallest (30.57 µm). The second phases included lamellar LPSO, block-like Mg 3 (Zn, RE), granular Al 2 RE acicular RE. content increased, while that other decreased. ultimate tensile strength (UTS), yield (YS) elongation all When were best, UTS, YS 228.2 MPa, 158.2 MPa 8.8%, respectively.
In this paper, a low-cost and high-performance Mg–4Y–3Nd–1.5Al rolled magnesium rare earth alloy sheet was developed by multi-pass rolling process. The effect of cumulative deformation on the microstructure mechanical properties studied. It is found that with increase passes, proportion dynamic recrystallisation grains increases, are refined texture strength weakened due to combined particle excitation nucleation mechanism grain-boundary-induced mechanism. results show fine-grain...
Abstract In this study, the synergistic effects of Y and Nd on grain refinement as-cast Mg-Y-Nd-Al alloy was investigated by varying contents while fixing their total content (Y + Nd) at 7%. When were 3% 4%, respectively, most effective smallest size 49 ± 5 μ m achieved. The process primarily controlled heterogeneous nucleation growth restriction factor (Q value). could only form Al 2 RE phase with Al, both 11 3 formed between Al. acted as particles α -Mg facilitated nucleation; however, an...
The effects of Al content on microstructure, texture, and mechanical properties as-extruded Mg–3Nd alloy were investigated. particle stimulated nucleation effect 2 Nd 11 3 phases promotes dynamic recrystallisation the texture is weakened alloys. With increase in alloys, microstructure transformed from a bimodal structure to an almost fully recrystallised structure. Grain refinement, distribution second phases, are important factors determining As-extruded Mg–3Nd–3Al achieved good balance...
In the present paper, Mg-11Gd-2Y-1Zn alloys with different Al addition were fabricated by gravity permanent mold method. The effect of content on microstructure evolution and mechanical properties as-cast alloy was studied metallographic microscope, scanning electron XRD tensile testing. experimental results showed that consisted α-Mg phase island-shaped Mg3 (RE, Zn) phase. When element added, Al2RE lamellar Mg12REZn (LPSO) formed in alloy. With increasing content, LPSO gradually decreased,...