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The Effect of Heat Treatment on the Corrosion Resistance, Mechanical Properties and Wear Resistance of Cr−C Coatings and Cr−C/Al2O3 Composite Coatings Electrodeposited on Low Carbon Steel

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Academic year: 2019

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Figure

Fig. 1. The as-deposited sample presents a typical nodular structure with some microcracks (red arrows The SEM morphologies of the as-deposited and heat treated Cr−C coatings are displayed in in Fig
Figure 2. Surface morphologies Cr–C/Al2O3 composite deposit heated at various temperatures: (a) as-plated, (b) 200 ℃, (c) 400 ℃ and (d) 600 ℃
Figure 3. SEM cross-sectional images of the as-plated coatings: (a) Cr–C coating, (b) Cr–C/Alcomposite coating
Figure 5. The X-ray diffraction patterns of Cr−C coatings after annealing at different temperatures: (a) as-plated, (b) annealed at 200 ℃, (c) annealed at 400 ℃, and (d) annealed at 600 ℃
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