Laser Processing of La61.4Al15.9Ni11.35Cu11.35 Based Functionally Graded Material Bulk Metallic Glass

Bulk metallic glass (BMG) based on lanthanum is one of the BMG with exceptional glass-forming ability (GFA). The $${\mathrm{La}}_{61.4}{\mathrm{Al}}_{15.9}{\mathrm{Ni}}_{11.35}{\mathrm{Cu}}_{11.35}$$ bulk metallic glasses were treated to a laser processing test in this experiment. The results showed that the best power, frequency, and speed ranges for laser processing of the $${\mathrm{La}}_{61.4}{\mathrm{Al}}_{15.9}{\mathrm{Ni}}_{11.35}{\mathrm{Cu}}_{11.35}$$ BMG samples are 40–50 W, 160–240 kHz, and 200–400 mm/s, respectively. As a result, the current work was effective in producing the Lanthanum-based functionally graded material (FGM) BMG. The positive findings on the laser’s microstructural or morphology, give a solid foundation for future advancement research on the $${\mathrm{La}}_{61.4}{\mathrm{Al}}_{15.9}{\mathrm{Ni}}_{11.35}{\mathrm{Cu}}_{11.35}$$ BMG.