研究目的
To test the influence of the laser beam on the surface structure and morphology of Zr-based bulk metallic glasses (BMGs).
研究成果
High-energy laser beam treatment leads to forming fusion zone (FZ) and heat-affected zone (HAZ) with amorphous structure in the plate before laser treatment and in the melting zone after laser beam impact, whereas a small amount of crystalline Zr2Ni-type phase was produced in the HAZ. The higher the frequency and energy of the laser beam, the more elliptic is the shape of the weld penetration.
研究不足
The study is limited to the effects of laser beam parameters on the surface structure and morphology of Zr-based BMGs. The complexity of adjusting laser beam parameters requires expertise in material engineering and laser technologies.
1：Experimental Design and Method Selection:
The study involved testing the effect of laser beam radiation on the structure of the surface of Zr55Cu30Ni5Al10 BMGs using single impulse and laser beam welding emitted in a pulsed mode.
2：Sample Selection and Data Sources:
The material for the examination was Zr55Cu30Ni5Al10 alloy obtained by high-pressure copper mold casting method.
3：List of Experimental Equipment and Materials:
Seifert-FPM manufactured XRD 7 x-ray diffractometer, TruLaser Station 5004, Titan 80-300 transmission electron microscope, Supra 25 scanning electron microscope, Hysitron TI950 Triboindenter.
4：Experimental Procedures and Operational Workflow:
Melting tests were performed using different parameters of the laser beam, shielded with argon.
5：Data Analysis Methods:
Microscopic observations, high-resolution transmission electron microscopy analysis, atomic force microscopy.
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