首页|Direct deposition of low-cost carbon fiber reinforced stainless steel composites by twin-wire arc spray

Direct deposition of low-cost carbon fiber reinforced stainless steel composites by twin-wire arc spray

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  • NSTL
  • Elsevier
Metal matrix composites (MMCs), combining the unique advantages of two or more constituents, have been recognized as a promising structural material system. Particularly, MMCs reinforced by carbon fibers (CFs) have opened new material design routes towards increased strength-to-weight ratios. Here, we demonstrate a low-cost one-step deposition of CF reinforced stainless steel (CFRSS) composites by twin-wire arc spray on low-alloy steel (LAS) substrates. The CFs are self-assembled and grow coherently, up to 100 s of mu m in length, along the splatdomain boundaries with enhanced bonding to their vicinals through partial oxidation. Structural and electrochemical studies reveal a pitting corrosion of the CFRSS layer in aqueous NaCl (3.5 wt.%) electrolyte and the corrosion passivation is apparently larger than that of the LAS substrate. Both the micro-and nano-hardness of the CFRSS layer are improved to over 4 times higher than that of the LAS substrate. These property enhancements indicate that this low-cost one-step process could revolutionize protective coatings on LAS against corrosion and/or erosion under aggressive conditions.

Carbon fiber reinforced stainless steel&nbspcompositeTwin-wire arc sprayProtective coatingElectrochemical corrosionHardness improvementMETAL-MATRIX COMPOSITESGRAPHENE OXIDEMECHANICAL-PROPERTIESWEAR-RESISTANCEPYROPHORIC IRONMICROSTRUCTUREOXIDATIONNANOTUBEOXYGENCHEMISORPTION

Liu, Hongfei、Tan, Chee Kiang Ivan、Meng, Tzee Luai、Lin, Ming、Lee, Coryl J. J.、Liu, Junyi、Zhang, Zheng、Tan, Dennis C. C.、Cao, Jing、Suwardi, Ady

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ASTAR

2022

10.1016/j.jmatprotec.2021.117440

Journal of Materials Processing Technology

Journal of Materials Processing Technology

EISCI
ISSN：0924-0136
年,卷(期)：2022.301
  • 5
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