High-throughput aqueous passivation behavior of thin-film vs. bulk multi-principal element alloys in sulfuric acid

被引：2

作者：

Blades, William H. ^{[1
,2
]}

Sur, Debashish ^{[3
,4
]}

Joress, Howie ^{[5
]}

DeCost, Brian ^{[5
]}

Holcombe, Emily F. ^{[6
,7
]}

Redemann, Ben ^{[6
,8
,9
]}

McQueen, Tyrel M. ^{[6
,8
,9
]}

Berlia, Rohit ^{[1
]}

Rajagopalan, Jagannathan ^{[1
]}

Taheri, Mitra L. ^{[5
,6
]}

Scully, John R. ^{[3
,4
]}

Sieradzki, Karl ^{[1
]}

机构：

[1] Arizona State Univ, Ira A Fulton Sch Engn, Tempe, AZ 85287 USA

[2] Juniata Coll, Dept Phys & Engn Phys, Huntingdon, PA USA

[3] Univ Virginia, Ctr Electrochem Sci & Engn, Charlottesville, VA 22904 USA

[4] Univ Virginia, Dept Mat Sci & Engn, Charlottesville, VA 22904 USA

[5] Natl Inst Stand & Technol, Mat Measurement Sci Div, Gaithersburg, MD 20899 USA

[6] Johns Hopkins Univ, Dept Mat Sci & Engn, Baltimore, MD 21218 USA

[7] Naval Surface Warfare Ctr, Carderock, West Bethesda, MD USA

[8] Johns Hopkins Univ, Dept Chem, Baltimore, MD 21218 USA

[9] Johns Hopkins Univ, William H Miller III Dept Phys & Astron, Baltimore, MD 21218 USA

来源：

CORROSION SCIENCE | 2024年 / 236卷

基金：

美国国家科学基金会;

关键词：

Passivation; Surface passivation; Intergranular corrosion; Acid corrosion; Corrosion resistance; HIGH-ENTROPY ALLOYS; GRAIN-BOUNDARY-CHARACTER; SCANNING DROPLET CELL; CORROSION BEHAVIOR; INTERGRANULAR CORROSION; ALUMINUM CONTENT; TRANSITION; MICROSCOPY; COLUMNAR;

D O I：

10.1016/j.corsci.2024.112261

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Multi-principal element alloys have the potential to show excellent passivation behavior. However, the detailed compositional and crystal structure design of these alloys requires a high-throughput strategy. We used combinatorial thin-film libraries of single-phase (FeCoNi)1-x-yCrxAly alloys and compared their passivation behaviors to corresponding bulk alloys. Our results demonstrate that the detailed passivation behaviors of thinfilms and bulk alloys are different which is related to both nanoscale porosity within the thin-films and grain boundary dissolution. Nevertheless, we found that comparisons made among suitably designed sets of thin-film alloys can be used to determine the best corrosion performing bulk alloy composition.

引用

页数：9

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