Effect of Anode Pulse-Width on the Microstructure and Wear Resistance of Microarc Oxidation Coatings
Abstract
:1. Introduction
2. Experimental Details
2.1. Sample Preparation
2.2. Testing and Characterization
3. Results and Discussion
3.1. Microstructure of MAO Coatings and MAO Self-Lubricating Composite Coatings
3.2. Effect of Anode Pulse-Width on the Phase Structure of MAO Ceramic Coatings
3.3. Effect of Anode Pulse-Width on the Adhesion Strength of MAO Ceramic Coatings
3.4. Effect of Anode Pulse-Width on the Wear Resistance of MAO Ceramic Coatings
3.5. Tribological Properties of MAO Self-Lubricating Composite Coatings
4. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
References
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Labels | Ton+ (μs) | Toff+ (μs) | Ton− (μs) | Toff− (μs) | V+ (V) | V− (V) | I+ (A/dm2) | I− (A/dm2) | Time (min) |
---|---|---|---|---|---|---|---|---|---|
a (a1) | 1000 | 300 | 2000 | 300 | Figure 2 | Figure 2 | 37 | 9 | 30 |
b (b1) | 1500 | 300 | 2000 | 300 | Figure 2 | Figure 2 | 37 | 9 | 30 |
c (c1) | 2000 | 300 | 2000 | 300 | Figure 2 | Figure 2 | 37 | 9 | 30 |
d (d1) | 2500 | 300 | 2000 | 300 | Figure 2 | Figure 2 | 37 | 9 | 30 |
e (e1) | 3000 | 300 | 2000 | 300 | Figure 2 | Figure 2 | 37 | 9 | 30 |
f (f1) | 3500 | 300 | 2000 | 300 | Figure 2 | Figure 2 | 37 | 9 | 30 |
g (g1) | 4000 | 300 | 2000 | 300 | Figure 2 | Figure 2 | 37 | 9 | 30 |
Labels | Intensity (a.u., arbitrary unit) | ||||||
---|---|---|---|---|---|---|---|
a | b | c | d | e | f | g | |
1 | 1720 | 2110 | 2032 | 1895 | 1879 | 1818 | 1671 |
2 | 2988 | 3789 | 3607 | 3404 | 3335 | 3253 | 2853 |
3 | 2789 | 3731 | 3606 | 3163 | 3099 | 2991 | 2701 |
Coatings | Lc (N) |
---|---|
A (Figure 10a) | 11.58 |
B (Figure 10b) | 10.50 |
C (Figure 10c) | 8.83 |
D (Figure 10d) | 8.17 |
E (Figure 10e) | 7.17 |
F (Figure 10f) | 6.83 |
G (Figure 10g) | 6.67 |
Coatings | Wear Time (s) | Wear Track Width (μm) | Wear Track Depth (μm) | Wear Rate (mm3·N−1·m−1) |
---|---|---|---|---|
a | 1200 | 420.56 | 3.19 | 0.13 × 10−5 |
b | 1200 | 490.65 | 3.73 | 0.15 × 10−5 |
c | 1200 | 560.75 | 4.26 | 0.18 × 10−5 |
d | 1200 | 654.21 | 4.97 | 0.20 × 10−5 |
e | 1200 | 700.94 | 5.32 | 0.21 × 10−5 |
f | 1200 | 724.30 | 5.50 | 0.22 × 10−5 |
g | 1200 | 794.39 | 6.03 | 0.24 × 10−5 |
Coatings | Wear Time (s) | Wear Track Width (μm) | Wear Track Depth (μm) | Wear Rate (mm3·N−1·m−1) |
---|---|---|---|---|
a1 | 1200 | 380.47 | 2.92 | 0.12 × 10−5 |
b1 | 1200 | 357.10 | 2.81 | 0.11 × 10−5 |
c1 | 1200 | 333.74 | 2.73 | 0.10 × 10−5 |
d1 | 1200 | 403.83 | 3.16 | 0.13 × 10−5 |
e1 | 1200 | 427.20 | 3.24 | 0.13 × 10−5 |
f1 | 1200 | 473.92 | 3.69 | 0.15 × 10−5 |
g1 | 1200 | 520.65 | 4.15 | 0.17 × 10−5 |
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Li, Z.-W.; Di, S.-C. Effect of Anode Pulse-Width on the Microstructure and Wear Resistance of Microarc Oxidation Coatings. Metals 2017, 7, 243. https://doi.org/10.3390/met7070243
Li Z-W, Di S-C. Effect of Anode Pulse-Width on the Microstructure and Wear Resistance of Microarc Oxidation Coatings. Metals. 2017; 7(7):243. https://doi.org/10.3390/met7070243
Chicago/Turabian StyleLi, Zhen-Wei, and Shi-Chun Di. 2017. "Effect of Anode Pulse-Width on the Microstructure and Wear Resistance of Microarc Oxidation Coatings" Metals 7, no. 7: 243. https://doi.org/10.3390/met7070243