Surface oxidation of FeSiB amorphous alloy and its effect on metallic glass fiber reinforced cement mortar
Year: 2025
Type: article
Abstract: amorphous alloys were annealed in air at 25-400 °C for 0-60 min to introduce surface oxidation. Pristine fibers with a volume content of 0, 0.25, 0.5, 0.75, 1, 1.25 and 1.5 vol% and surface-oxidized fibers with a content of 0.5 vol% were used to prepare fiber reinforced cement mortars. Structural, thermal, magnetic and mechanical properties were characterized for pristine fibers, oxidized fibers and mortar specimens. Air-annealed alloys remain amorphous and produce a partially oxidized surface, which reduces saturation magnetization. Mortars reinforced by pristine fibers exhibit 6.4% and 32.4% of increase in compressive strength and flexural strength respectively, due to fiber-paste interfaces. Surface oxidation of the fibers improves the efficiency of load-transfer and, as a result, further enhances the strengths of fiber reinforced mortar. This study demonstrates that surface oxidation of metallic glass fibers is a viable strategy to enhance performances of cement-based materials.
Source: Scientific Reports
Authors: Yao Xia, Yiyue Chen, Xing Qin, Lei He, Bowen Dong, Song Lan
Institutions: Chongqing Jiaotong University, Chongqing University
Language: English
Subfield: Civil and Structural Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,690
Awards: G7686534953, G8946745108
OpenAlex ID: W4415295304