000K  utf8
1100  2023$c2023-11
1500  eng
2050  urn:nbn:de:gbv:27-dbt-20240415-144907-002
2051  10.1016/j.surfin.2023.103305
3000  Wolff, M.
3010  Bonse, J.
3010  Freiberg, K.E.
3010  Giebeler, L.
3010  Gräf, S.
3010  Hertwig, A.
3010  Hufenbach, J.K.
3010  Koitzsch, A.
3010  Kunz, C.
3010  Müller, F.A.
3010  Weber, H.
3010  Wonneberger, R.
4000  Formation of laser-induced periodic surface structures on Zr-based bulk metallic glasses with different chemical composition$hElsevier BV  [Wolff, M.]
4030  $nElsevier BV
4060  11 Seiten
4209  Bulk metallic glasses (BMG) are amorphous metal alloys known for their unique physical and mechanical properties. In the present study, the formation of femtosecond (fs) laser-induced periodic surface structures (LIPSS) on the Zr-based BMGs Zr46Cu46Al8, Zr61Cu25Al12Ti2, Zr52.5Cu17.9Al10Ni14.6Ti5 (Vit105) and Zr57Cu15.4Al10Ni12.6Nb5 (Vit106) was investigated as a function of their different chemical composition. For this purpose, LIPSS were generated on the sample surfaces in an air environment by fs-laser irradiation (λ = 1025 nm, τ = 300 fs, frep = 100 kHz). The surface topography was characterized by scanning electron microscopy and atomic force microscopy. Moreover, the impact of LIPSS formation on the structure and chemical surface composition was analyzed before and after fs-laser irradiation by X-ray diffraction and X-ray photoelectron spectroscopy as well as by transmission electron microscopy in combination with energy dispersive X-ray spectroscopy. Despite the different chemical composition of the investigated BMGs, the fs-laser irradiation resulted in almost similar properties of the generated LIPSS patterns. In the case of Zr61Cu25Al12Ti2, Vit105 and Vit106, the surface analysis revealed the preservation of the amorphous state of the materials during fs-laser irradiation. The study demonstrated the presence of a native oxide layer on all pristine BMGs. In addition, fslaser irradiation results in the formation of laser-induced oxide layers of larger thickness consisting of an amorphous ZrAlCu-oxide. The precise laser-structuring of BMG surfaces on the nanoscale provides a versatile alternative to thermoplastic forming of BMG surfaces and is of particular interest for the engineering of functional material surfaces.
4950  https://doi.org/10.1016/j.surfin.2023.103305$xR$3Volltext$534
4950  https://nbn-resolving.org/urn:nbn:de:gbv:27-dbt-20240415-144907-002$xR$3Volltext$534
4961  https://www.db-thueringen.de/receive/dbt_mods_00060040
5051  540
5550  bulk metallic glasses
5550  chemical analysis
5550  crystallization
5550  fs-laser
5550  laser-induced periodic surface structures
5550  oxidation
5550  surface topography