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Materials 2017, 10(7), 772; https://doi.org/10.3390/ma10070772

Mechanical Behavior of Stainless Steel Fiber-Reinforced Composites Exposed to Accelerated Corrosion

1
Civil and Environmental Engineering Department, University of Connecticut, 261 Glenbrook Road, Unit 3037, Storrs, CT 06269-3037, USA
2
Chemical and Biomolecular Engineering, University of Connecticut, 191 Auditorium Road, Unit 3222, Storrs, CT 06269-3222, USA
3
Polymer Program, Institute of Materials Science, University of Connecticut, 97 North Eagleville Road, Unit 3136, Storrs, CT 06269-3136, USA
4
Biomedical Engineering, University of Connecticut, 260 Glenbrook Road, Unit 3247, Storrs, CT 06269-3247, USA
5
Chemical Engineering, Northeastern University, 360 Huntington Ave., Boston, MA 02115, USA
*
Authors to whom correspondence should be addressed.
Received: 9 June 2017 / Revised: 3 July 2017 / Accepted: 5 July 2017 / Published: 8 July 2017
(This article belongs to the Section Advanced Composites)
Full-Text   |   PDF [8990 KB, uploaded 8 July 2017]   |  

Abstract

Recent advancements in metal fibers have introduced a promising new type of stainless steel fiber with high stiffness, high failure strain, and a thickness < 100 μm (<0.00394 in.) that can be utilized in a steel fiber-reinforced polymer. However, stainless steel is known to be susceptible to pitting corrosion. The main goal of this study is to compare the impact of corrosion on the mechanical properties of steel fiber-reinforced composites with those of conventional types of stainless steel. By providing experimental evidences, this study may promote the application of steel fiber-reinforced composite as a viable alternative to conventional metals. Samples of steel fiber-reinforced polymer and four different types of stainless steel were subjected to 144 and 288 h of corrosion in ferric chloride solution to simulate accelerated corrosion conditions. The weight losses due to corrosion were recorded. The corroded and control samples were tested under monotonic tensile loading to measure the ultimate stresses and strains. The effect of corrosion on the mechanical properties of the different materials was evaluated. The digital image correlation (DIC) technique was used to investigate the failure mechanism of the corrosion-damaged specimens. Overall, steel fiber-reinforced composites had the greatest corrosion resistance. View Full-Text
Keywords: composite; digital image correlation (DIC); metal fiber-reinforced polymer; mechanical properties; pitting corrosion; stainless steel composite; digital image correlation (DIC); metal fiber-reinforced polymer; mechanical properties; pitting corrosion; stainless steel
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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O’Brien, C.; McBride, A.; E. Zaghi, A.; Burke, K.A.; Hill, A. Mechanical Behavior of Stainless Steel Fiber-Reinforced Composites Exposed to Accelerated Corrosion. Materials 2017, 10, 772.

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