Abstract Avoiding crystallization while maintaining the original microstructure and mechanical properties of the material are long-term goals of laser welding of Zr-based bulk metallic glass (BMG). In this paper, the effect of pulsed laser welding parameters on the microstructure, crystallization degree, and mechanical properties of Zr 57 Nb 5 Cu 15.4 Ni 12.6 Al 10 BMG is investigated. Non-crystallized welding forming of a zirconium-based amorphous alloy is achieved by optimizing the process parameters of pulsed laser welding. The crystallization degree of Zr-based BMG is mainly determined by the welding speed and power. The welding depth and crystallization area fraction increase with an increase in the effective peak power density. The optimized welding process can effectively reduce the heat accumulation of the weld, thus avoiding crystallization. The flexural strength of the weld can be maintained at 96.5% of the matrix.

Pulsed laser

10.1186/s10033-025-01181-2

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Improvement of MoS2 thermoelectric power factor by doping WSe2 nanoparticle

Materials Today Communications (2022)

Zhiyi Guo Zhiwei Wang Shuangbin Han Hongjian Zhao Ying Liu

10.1016/j.mtcomm.2022.103420

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Effect of Strain Rate on Compressive Properties of Aluminium-Graphene Composites

Metals (2023)

Yufu Yan Jiamin Zhao Long Chen Hongjian Zhao Olga Klimova-Korsmik

Graphene-reinforced aluminium composites have been widely studied due to their excellent mechanical properties. However, only a few studies have reported their dynamic compression properties. The purpose of this study is to investigate the quasi-static and dynamic compression properties of graphene-reinforced aluminium composites. The addition of graphene improved the compressive stress resistance and energy absorption capacity of the aluminium matrix. An aluminium-0.5 wt.% graphene composite exhibited good compressive properties due to the different interfacial wave impedance generated by the additional grain boundaries or Aluminium-Graphene interfaces.

10.3390/met13030618

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Citations (1)