Abstract
NiWP alloy coatings electrodeposited on pure copper substrates with additive saccharin (C7H5NO3S) contents of 0-6 g/L were investigated via scanning electron microscope (SEM), x-ray diffractometer, microhardness, polarization curves, deposition rate, and wear resistance. Results show that the corrosion resistance, microhardness, and wear resistance of the NiWP alloy coatings have been optimized with the increase in saccharin contents changing from 2 to 4 g/L. The morphology of the NiWP alloy coatings observed via SEM exhibits a typical spherical nodular structure. The increase in saccharin content will decrease crack formation. The phases of NiWP alloy coatings are mainly the mixture of amorphous and microcrystalline nickel. Moreover, the quality of the coating can be improved through a slight change in the deposition rate. The hardness of the NiWP alloy coating continues to increase from 530.5 to 630.5 HV with the increase in saccharin content from 0 to 6 g/L. In addition, the P and W contents in the alloy coating are increased from 8.29 to 8.66 wt.% and from 28.68 to 30.45 wt.%, respectively. The corrosion potential is varied from −0.332 to −0.247 V, and the current density is varied from 23.81 to 3.282 µA/cm2 when the saccharin content is in the range of 0-4 g/L. With the increase in saccharin content from 0 to 4 g/L, the wear loss decreases gradually. Subsequently, a plateau is reached when the saccharin content is higher than 4 g/L. NiWP coatings show better tribological performances under high rotational speed than those under low rotational speed. Several possible reasons have been discussed.
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References
Y.F. Xu, X.J. Zheng, and X.G. Hu, Preparation of the Electroless Ni-P and Ni-Cu-P Coatings on Engine Cylinder and Their Tribological Behaviors Under Bio-oil Lubricated Conditions, Surf. Coat. Technol., 2014, 258,p 790–796
B. Panja and P. Sahoo, Wear Behavior of Electroless Ni-P Coatings in Brine Solution and Optimization of Coating Parameters, Procedia Technol., 2014, 14, p 173–180
B. Panja and P. Sahoo, Friction Performance of Electroless Ni-P Coatings in Alkaline Medium and Optimization of Coating Parameters, Procedia Eng., 2014, 97, p 47–55
M.A. Chen, N. Cheng, and Y.C. Ou, Corrosion Performance of Electroless Ni-P on Polymer Coating of MAO Coated AZ31 Magnesium Alloy, Surf. Coat. Technol., 2013, 232, p 726–733
H.L. Wang, L.Y. Liu, and W.F. Jiang, Effect of Novel Ternary Ligand System on Acidic Electroless Ni-P Plating on AZ91D Magnesium Alloy, Trans. Nonferr. Met. Soc. China, 2014, 24, p 3014–3022
F.J. He, Y.Z. Fang, and S.J. Jin, The Study of Corrosion-Wear Mechanism of Ni-W-P Alloy, Wear, 2014, 311, p 14–20
Q. Zhou, W. Sun, M. Zhu, and M. Tan, Fabrication and Corrosion Behavior of Electroless Ni-W-P Ternary Alloy Plating on the Aluminium Alloy, Adv. Mater. Res., 2009, 79–82, p 997–1000
H. Liu, R.X. Guo, and Z. Liu, Effects of Laser Nanocrystallisation on the Wear Behaviour of Electroless Ni-W-P Coatings, Surf. Coat. Technol., 2013, 219, p 31–41
H. Liu, R.X. Guo, and F. Viejo, Comparison of Microstructure and Residual Stress Characteristics of Electroless Ni-W-P Coatings Annealed with a Laser and a Furnace, Surf. Coat. Technol., 2012, 206, p 2380–2387
S.K. Tien, J.G. Duh, and Y.I. Chen, Structure, Thermal Stability and Mechanical Properties of Electroless Ni-P-W Alloy Coatings During Cycle Test, Surf. Coat. Technol., 2004, 177–178, p 532–536
S.K. Tien, J.G. Duh, and Y.I. Chen, The Influence of Thermal Treatment on the Microstructure and Hardness in Electroless Ni-P-W Deposit, Thin Solid Films, 2004, 469–470, p 333–338
F.B. Wu, S.K. Tien, J.G. Duh, and J.H. Wang, Surface Characteristics of Electroless and Sputtered Ni-P-W Alloy Coatings, Surf. Coat. Technol., 2003, 166, p 60–66
H. Liu, F. Viejo, and R.X. Guo, Microstructure and Corrosion Performance of Laser-Annealed Electroless Ni-W-P Coatings, Surf. Coat. Technol., 2010, 204, p 1549–1555
F.B. Wu, S.K. Tien, and W. Chen, Microstructure Evaluation and Strengthening Mechanism of Ni-P-W Alloy Coatings, Surf. Coat. Technol., 2004, 177–178, p 312–316
H. Liu, R.X. Guo, and Y. Liu, The Effect of Processing Gas on Corrosion Performance of Electroless Ni-W-P Coatings Treated by Laser, Surf. Coat. Technol., 2012, 206, p 3350–3359
Z.A. Hamid, Mechanism Electroless Deposition of Ni-W-P Alloys by Adding Surfactants, Surf. Interface Anal., 2003, 35, p 496–501
J.N. Balaraju, S.M. Jahan, and C. Anandan, Studies on Electroless Ni-W-P and Ni-W-Cu-P Alloy Coatings Using Chloride-Based Bath, Surf. Coat. Technol., 2006, 200, p 4885–4890
V.D. Papachristos, C.N. Panagopoulos, and U. Wahlstrom, Effect of Annealing on the Structure and Hardness of Ni-P-W Multilayered Alloy Coatings Produced by Pulse Plating, Sci. Eng. A, 2000, 279, p 217–230
A.C. Lokhande and J.S. Bagi, Studies on Enhancement of Surface Mechanical Properties of Electrodeposited Ni-Co Alloy Coatings Due to Saccharin Additive, Surf. Coat. Technol., 2014, 258, p 225–231
I.J. Brown and S. Sotiropoulos, Electroplating and Electroless Plating of Ni Through/Onto a Porous Polymer in a Flow Cell, J. Appl. Electrochem., 2001, 31, p 1203–1212
I. Rajagopal, Electroless and Electrodeposition of Nickel Boron Composites, Bull. Mater. Sci., 1983, 3–4, p 323–331
M.R. Sameti, S. Nadali, and A. Falahatpisheh, The Effects of Sodium Dodecyl Sulfate and Sodium Saccharin on Morphology, Hardness and Wear Behavior of Cr-WC Nano Composite Coatings, Solid State Commun., 2013, 159, p 18–21
G.H. Lv, H. Chen, and X.Q. Wang, Effect of Additives on Structure and Corrosion Resistance of Plasma Electrolytic Oxidation Coatings on AZ91D Magnesium Alloy in Phosphate Based Electrolyte, Surf. Coat. Technol., 2010, 205, p S36–S40
X.Q. Wu, F.Q. Xie, and Z.C. Hu, Effects of Additives on Corrosion and Wear Resistance of Micro-arc Oxidation Coatings on TiAl Alloy, Trans. Nonferr. Met. Soc. China, 2010, 20, p 1032–1036
H. Liu, H.L. Yao, F. Viejo, G. Harrison, G.E. Thompson, and Z. Liu, Laser Nanocrystallisation and Corrosion Behavior of Electroless Ni-W-P Coating with High Phosphorus Content, Trans. IMF, 2014, 92, p 212–217
J.N. Balaraju and K.S. Rajam, Electroless Deposition of Ni-Cu-P, Ni-W-P and Ni-W-Cu-P Alloys, Surf. Coat. Technol., 2005, 195, p 154–161
H. Yao, G. Zhu, and M. Du, The Research on Technology of Electroless Ni-W-P Ternary Alloys Plating on the Aluminium Alloy, Appl. Mech. Mater., 2012, 117–119, p 1338–1342
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The authors would like to thank the financial support from the colleges and universities of science and technology research projects of Hebei Province in China under Grant No. ZD2014055. Research work in this paper was supported by China Scholarship Council.
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Wang, Y., Yu, M., Luo, H. et al. Effect of Saccharin on the Structure and Properties of Electrodeposition NiWP Alloy Coatings. J. of Materi Eng and Perform 25, 4402–4407 (2016). https://doi.org/10.1007/s11665-016-2298-7
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DOI: https://doi.org/10.1007/s11665-016-2298-7