Preprint Article Version 1 This version is not peer-reviewed

Surface Modification of the Bulk Metallic Glass Zr$_{46}$Cu$_{36.8}$Ag$_{9.2}$Al$_8$ Triggered by Millisecond Laser Irradiation

Version 1 : Received: 8 October 2018 / Approved: 9 October 2018 / Online: 9 October 2018 (06:13:47 CEST)

How to cite: Shlykova, A.A.; Gasanov, M.F.; Nasedkin, A.; Fedorov, V.A. Surface Modification of the Bulk Metallic Glass Zr$_{46}$Cu$_{36.8}$Ag$_{9.2}$Al$_8$ Triggered by Millisecond Laser Irradiation. Preprints 2018, 2018100177 (doi: 10.20944/preprints201810.0177.v1). Shlykova, A.A.; Gasanov, M.F.; Nasedkin, A.; Fedorov, V.A. Surface Modification of the Bulk Metallic Glass Zr$_{46}$Cu$_{36.8}$Ag$_{9.2}$Al$_8$ Triggered by Millisecond Laser Irradiation. Preprints 2018, 2018100177 (doi: 10.20944/preprints201810.0177.v1).

Abstract

Zirconium based bulk metallic glasses are industrially valuable materials which commercial market grows rapidly. Surface modification of these metallic glasses by high-intensity lasers is relatively new and costly treatment promising great advantages over classical surface processing methods. In this work we perform the case study of surface modification of Zr$_{46}$Cu$_{36.8}$Ag$_{9.2}$Al$_8$ metallic glass by high-intensity millisecond laser beam. Our results suggest chemical deposition of atmospheric oxygen and nitrogen in the laser-melted surface area and its surroundings. Zirconium nitride layer was detected in the middle of laser-irradiated area. Nanocrystals embedded in the amorphous matrix were also formed on the surface. Overall, our findings suggest possibilities for improvement of mechanical characteristics of the studied metallic glass.

Subject Areas

Zirconium; bulk metallic glass; laser material processing; amorphous; nanocrystals; surface modification; glass transition

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