Effects of Cr addition on thermal stability, soft magnetic properties and corrosion resistance of FeSiB amorphous alloys. (1st July 2018)

• Record Type: Journal Article
• Authors: Xu, D.D.; Zhou, B.L.; Wang, Q.Q.; Zhou, J.; Yang, W.M.; Yuan, C.C.; Xue, L.; Fan, X.D.; Ma, L.Q.; Shen, B.L.
• Is Part Of: Corrosion science. Volume 138(2018)
• Page Start: 20
• Page End: 27
• Publication Date: 2018-07-01
• Subjects: A. Amorphous alloy -- B. Polarization -- B. XPS -- C. High corrosion resistance -- C. Passive films; Corrosion and anti-corrosives -- Periodicals; 620.11223
• DOI: 10.1016/j.corsci.2018.04.006
• Languages: English
• ISSNs: 0010-938X

Abstract

Graphical abstract: Highlights: FeSiBCr amorphous alloys with excellent soft magnetic properties and high corrosion resistance were prepared. Minor Cr addition significantly improves the corrosion resistance of the FeSiB amorphous alloys. Fe74.9 Si9.5 B11 Cr5 amorphous alloy shows good corrosion and magnetic properties. Abstract: The effects of Cr addition on the thermal stability, soft magnetic properties and corrosion resistance of Fe79.5-x Si9.5 B11 Crx amorphous alloys were detailed investigated. It was found that Cr addition has multiple effects on improving those properties of FeSiB amorphous alloys. As Cr content increases from 0 to 5 at%, the coercive force decreases from 2.46 to 2.02 A/m, and the corrosion rate of the alloys in 0.1 M NaCl solution also decreases from 1.83 × 10 −1 to 3.91 × 10 −4 mm·year −1 . Besides, the passive region exceeds 1.13 V for the alloy containing 7 at% of Cr.