A5101693332- Powder Metallurgy Techniques and Materials
- Advanced materials and composites
- Additive Manufacturing Materials and Processes
- High Entropy Alloys Studies
- Injection Molding Process and Properties
- Additive Manufacturing and 3D Printing Technologies
- Advanced battery technologies research
- Metal Alloys Wear and Properties
- Aluminum Alloy Microstructure Properties
- High Temperature Alloys and Creep
- Advanced ceramic materials synthesis
- Supercapacitor Materials and Fabrication
- Gear and Bearing Dynamics Analysis
- Electrocatalysts for Energy Conversion
- Advancements in Battery Materials
- Electrochemical Analysis and Applications
- Tribology and Lubrication Engineering
- Metallurgy and Material Forming
- Extraction and Separation Processes
- Welding Techniques and Residual Stresses
- Conducting polymers and applications
- Mechanical Engineering and Vibrations Research
Grinm Advanced Materials (China)
2010-2024
General Research Institute for Nonferrous Metals (China)
2022-2024
Al-Li alloys are extensively utilized in the field of aerospace due to their low density and high specific strength. However, laser powder bed fusion (LPBF) processed still encounter challenges because hot cracking Li element ablation. In this study, a TiC nanoparticle modified Al-Mg-Li alloy is developed for LPBF process. Full dense printed can be obtained. The presence nanoparticles melt pool effectively increased viscosity Al liquid, leading reduction metal vaporization liquid spatters,...
The microstructures and mechanical properties of a γ′-strengthened nickel-based superalloy, GH4099, produced by laser powder bed fusion, at room temperature 900 °C are investigated, followed three various heat treatments. as-built (AB) alloy consists cellular/dendrite substructures within columnar grains aligning in <100> crystal orientation. No γ′ phase is observed the AB sample due to relatively low content Al +Ti. Following standard solid solution treatment, molten pool boundaries...
The exploration of noble metal free bifunctional oxygen reduction reaction (ORR) and evolution (OER) electrocatalysts is very important for Zn‐air batteries (ZABs). Spinel ferrites are famous ORR/OER electrocatalysts. Herein, to further improve their ORR OER activities, we anchor CoFe2O4 on N‐doped carbon nanofibers (NCNF) derived from polypyrrole (PPy) obtain loaded NCNF (CoFe2O4@NCNF). In its structure, particles with small size distribute evenly NCNF. combination generates excellent...
With the rapid development of new energy vehicles and communication technologies, demand for high-performance copper thermal conductive components is increasing. Manufacturing with complex structures by metal injection molding one most optimal solutions. In this paper, water-atomized powder an average particle size 29.75 µm used as raw material, effect spheroidization treatment on properties powder, such morphology, size, apparent density, tap studied, well molding. The results show that...
Abstract Copper-infiltrated sintered steel is a prominent area of research in powder metallurgy, with particular focus on enhancing impact toughness. In this study, steels varying pore structures were prepared using iron powders and infiltrated copper to investigate their The results indicate significant improvement the toughness concentrated particle sizes. density samples increased from 6.85 g cm −3 7.55 through infiltration. large copper-phase sample size 150 μ m exhibits an as high 41.09...
Abstract In this paper, the effects of copper infiltrant amount and infiltration method on mechanical properties Fe-Cu-C-based sintered steel were investigated. The results indicate that density, tensile strength, impact energy, hardness increase with higher infiltration. optimal achieved when reached 15%, resulting in a surface HRC31, an energy 31.34 J, ultimate strength 759 MPa. Furthermore, different methods affected material’s properties. When was 12.5%, sample 15.41% using bottom...
Abstract Selective laser melting (SLM) technology features high forming accuracy and a short preparation cycle, providing significant advantage for shaping complex structural components. Copper-chromium-zirconium exhibits outstanding comprehensive performance finds wide applications in rocket combustion chambers, automotive inductor coils, nuclear shielding materials, welding electrodes, other areas. However, due to its low absorption rate thermal conductivity, the process of...
Sintered steel is widely used in various industries, including automotive, aerospace, and construction machinery, due to its notable attributes such as high precision, wear resistance, efficient material utilization, cost-effectiveness. However, the presence of pores hinders sintered from achieving a fully dense state, thereby restricting broader applications. Copper infiltration enables reduction or elimination pores, minimizes stress concentration, prevents microcrack formation....
This study prepared pre-sintered clusters with fine nickel powders and proposed an effective method to predict control the sintering shrinkage based on cluster size. Experiments were conducted investigate influence of pre-sintering temperature size specific surface area morphology as well validate availability prediction method. The results show that decreases increasing slightly oscillates linear ratio is inversely proportional temperature, which begins drop rapidly at 500 °C from 19.05%...