Salt Spray Corrosion Performance Associated with the Glass Forming Ability of the FeCo-Based Bulk Metallic Glasses

Abstract:

For the bulk amorphous Fe_24+xCo_24-xCr₁₅Mo₁₄C₁₅B₆Y₂(X=0, 2, 4, 6 and 17) alloy, the corresponding corrosion properties associated with glass forming ability (GFA) have been carried out. Neutral salt spray corrosion test results show that the Fe₂₈Co₂₀Cr₁₅Mo₁₄C₁₅B₆Y₂ alloy has the minimum corrosion rate, followed by Fe₂₆Co₂₂Cr₁₅Mo₁₄C₁₅B₆Y₂, Fe₂₄Co₂₄Cr₁₅Mo₁₄C₁₅B₆Y₂, Fe₃₀Co₁₈Cr₁₅Mo₁₄C₁₅B₆Y₂, Fe₄₁Co₇Cr₁₅Mo₁₄C₁₅B₆Y₂ and Ti6Al4V alloys. Specifically, the Fe₂₈Co₂₀Cr₁₅Mo₁₄C₁₅B₆Y₂ alloy with the highest GFA also has the best corrosion resistance. With the increasing of Co addition, the corrosion resistance of the FeCo-based bulk metallic glasses is first increases and then decreases, which has the same trend of GFA with the change of Co elements. Furthermore, corrosion morphology are different for FeCo-based BMGs with different Co content.

• Periodical: Applied Mechanics and Materials (Volume 618)
• Pages: 109-113
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.618.109
• Online since: August 2014
• Authors: Wei Jiang, Qing Jun Chen*, Jun Shen, Fa Bi Zhang, Xian Liang Zhou, Xiao Zhen Hua
• Keywords: Corrosion Resistance Properties, FeCo-Based Bulk Metallic Glasses, Glass Forming Ability, Salt Spray Corrosion

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