High temperature oxidation behaviors of Ir-Ni-Ta-(B) metallic glass. (15th August 2022)

• Record Type: Journal Article
• Authors: Han, Fei; Chen, Yanan; Liu, YanHui; Yang, Xiaodong; Che, Shenglei; Zhang, Yan; Huo, Juntao; Gao, Meng; Wang, Jun-Qiang
• Is Part Of: Corrosion science. Volume 205(2022)
• Publication Date: 2022-08-15
• Subjects: Ir-based metallic glasses -- High temperature oxidation -- Phase transition -- Amorphous oxide layer -- Oxidation corrosion mechanism; Corrosion and anti-corrosives -- Periodicals; 620.11223
• DOI: 10.1016/j.corsci.2022.110420
• Languages: English
• ISSNs: 0010-938X

Abstract

Abstract: Due to the limited surface structure of optical device, the mold materials are extremely difficult to be processed at micro-nano scale, especially considering high temperature oxidation. Ir-Ni-Ta-(B) metallic glasses become the optimal candidate for the molding materials of optical devices. In this work, the high temperature oxidation behaviors for Ir-Ni-Ta-(B) during the isothermal and continuous heating process were studied. It is found that the addition of boron can enhance the oxidation resistance of Ir-Ni-Ta. What is more, Ir-Ni-Ta-(B) has formed a unique four-layer structure. This study reveals the oxidation mechanism and provides new insights into the development of new materials. Highlights: High temperature oxidation behaviors of Ir-Ni-Ta-(B) metallic glasses are studied. Oxidation resistance of Ir-Ni-Ta metallic glass is greatly improved by adding boron. Ir-Ni-Ta-(B) metallic glasses form a unique four-layer oxide structure. Pre-annealing treatment is proposed to improve oxidation resistance of metallic glass.