Effects of tungsten contents on the microstructure, mechanical and anticorrosion properties of Zr–W–Ti thin film metallic glasses

Abstract

While thin film metallic glass (TFMG) materials have been studied widely due to their easy fabrication process and unique properties, the W-based or W-containing TFMGs have yet to be explored extensively. In this work, four W-containing Zr–W–Ti TFMGs were fabricated by a magnetron co-sputtering system. The power of W target was adjusted to obtain TFMGs with different W concentrations. The amorphous phase of TFMG was determined by X-ray diffraction and high resolution transmission electron microscopy. In cross-sectional morphologies, a vein fracture pattern was observed using field-emission scanning electron microscopy. Although the hardness of W-containing Zr–W–Ti TFMG was not very high, the hardness of coating increased with increasing W content to reach 7.6GPa. Good adhesion quality and adequate corrosion resistance were also obtained for each Zr–W–Ti TFMGs.