A5103057418- High Entropy Alloys Studies
- Aluminum Alloys Composites Properties
- Additive Manufacturing Materials and Processes
- Advanced ceramic materials synthesis
- Advanced materials and composites
- Additive Manufacturing and 3D Printing Technologies
- Metal and Thin Film Mechanics
- Aluminum Alloy Microstructure Properties
- Diamond and Carbon-based Materials Research
- Magnetic and transport properties of perovskites and related materials
- Multiferroics and related materials
- Catalytic Processes in Materials Science
- Metallurgy and Material Forming
- Corrosion Behavior and Inhibition
- Nanoporous metals and alloys
- High-Temperature Coating Behaviors
- Material Properties and Applications
- Advanced Condensed Matter Physics
- Nanomaterials for catalytic reactions
- Intermetallics and Advanced Alloy Properties
Beihang University
2024
Beijing Institute of Aeronautical Materials
2016-2024
Lanzhou University of Technology
2019-2020
South China University of Technology
2011
Central South University
2009
Deep cryogenic aging (DCA) is a newly developed heat treatment technique for additive-manufactured metallic materials to reduce residual stress and improve their mechanical properties. In this study, AlSi10Mg alloy samples fabricated by selective laser melting were deep-cryogenic-treated at −160 °C subsequently aged 160 °C. Phase microstructural analyses conducted using X-ray diffraction, optical microscopy, scanning electron transmission while the properties evaluated through microhardness...
As a recently developed high-strength aluminium alloy used specifically for laser additive manufacturing, AlMgMnSc possesses superior mechanical properties and excellent processability. Extreme high-speed deposition (EHLD) is novel surface-modification technique, which characterised by high depositing speed, rapid cooling, rate minimal dilution rate. To offer new method surface repairing alloys, an coating, containing two layers, prepared on 6061 aluminium-alloy axle using the EHLD...
摘要: 分析了能量密度对激光选区熔化成形AlSi10Mg合金致密度的影响规律,并采用微纳CT检测结合EDS能谱分析的方法,统计了试样内部缺陷的类型和尺寸,分析了缺陷在试样三维层面上的分布规律及产生原因,得出了影响激光选区熔化成形AlSi10Mg合金致密度和内部缺陷的主要因素。结果表明,合适的激光能量输入是获得高致密度的关键,当激光能量密度处于47.62~50.00 J/mm3区间时,试样致密度最高,此时试样中夹杂缺陷消失,孔洞缺陷最大尺寸降至0.056 mm。孔洞缺陷产生原因主要与未熔粉体、空心粉及氧化物有关。在优选激光能量密度区间内成形的AlSi10Mg合金试样,其平均抗拉强度和伸长率分别在294 MPa和8.0%以上,优于铸造AlSi10Mg合金。
The AlSi10Mg powder was prepared by supersonic gas atomization. After classified, the fabricated into block selective laser melting (SLM). microstructure, phase, and evolutions of were investigated optical microscope, scanning electron microscope X-Ray Diffraction. tensile properties SLM tested experiments at room temperature. results show that size distribution after classified can meet requirements technology. always is spherical spherical-like. Meanwhile, microstructure powders fine...