研究目的
Investigating the effects of ultrasonic impact treatment and electron beam irradiation on the surface roughness, microstructure, phase composition, and microhardness of selective laser melted Ti-6Al-4V samples.
研究成果
Electron beam irradiation and ultrasonic impact treatment significantly reduce surface roughness and increase microhardness of SLM Ti-6Al-4V samples. Ultrasonic impact treatment leads to grain refinement and TiO nanoparticle formation, while electron beam irradiation results in a thicker hardened layer due to martensitic transformation.
研究不足
The study focuses on the surface modification of SLM Ti-6Al-4V samples and does not explore the bulk properties or long-term performance under operational conditions.
1：Experimental Design and Method Selection:
The study involved ultrasonic impact treatment and electron beam irradiation as post-processing methods for SLM Ti-6Al-4V samples.
2：Sample Selection and Data Sources:
SLM samples were produced using Ti-6Al-4V powder and subjected to post-processing treatments.
3：List of Experimental Equipment and Materials:
EOSINT M280 machine for SLM, IL4 ultrasonic generator, SOLO electron-beam plant, Leo EVO SEM, New View 6200 3D optical profiler, Zeiss Axiovert 40 MAT for metallographic studies.
4：Experimental Procedures and Operational Workflow:
Ultrasonic impact treatment and electron beam irradiation were applied to the samples, followed by surface and microstructure analysis.
5：Data Analysis Methods:
Contact profilometry, optical microscopy, X-ray analysis, and hardness measurement were used to analyze the samples.
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