研究目的
Demonstrating a new route for the synthesis of powder composites suitable for processing with laser additive manufacturing, focusing on the mechanical properties at elevated temperatures.
研究成果
The novel powder synthesis route successfully produced powder composites with homogenous Y2O3 nanoparticle distribution, leading to superior mechanical properties at elevated temperatures when processed by LMD and SLM.
研究不足
The study focuses on the feasibility of the new powder synthesis route and initial mechanical properties, with future work needed on long-term creep tests and neutron resistance evaluation.
1：Experimental Design and Method Selection
Utilized laser processing of colloids (LPC) and electrostatic deposition for powder composite synthesis. Employed Laser Metal Deposition (LMD) and Selective Laser Melting (SLM) for consolidation.
2：Sample Selection and Data Sources
Used ferritic, stainless steel powder with specific Cr, Al, and Ti content, and Y2O3 nanopowder.
3：List of Experimental Equipment and Materials
10 ps laser (EdgeWave), diode laser system (Laserline LDF 2000-30), laboratory SLM machine (Aconity MIDI), scanning electron microscope (Zeiss Leo 1455EP), servohydraulic testing system (Schenck PC63M).
4：Experimental Procedures and Operational Workflow
LPC for deagglomeration of Y2O3 nanoparticles, electrostatic deposition on steel powder, LMD and SLM for consolidation, microstructural and mechanical characterization.
5：Data Analysis Methods
Microstructural characterization via LOM and SEM, mechanical characterization through compression tests at room temperature and 600°C.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
