Microstructure and surface mechanical properties of pulse electrodeposited nickel
| Autor: | Anwar Ul-Hamid, Abdul Quddus, Luai M. Al-Hadhrami, Hatim Dafalla, H. Saricimen |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Materials science
Metallurgy General Physics and Astronomy Young's modulus Surfaces and Interfaces General Chemistry Nanoindentation Condensed Matter Physics Microstructure Surfaces Coatings and Films Field emission microscopy symbols.namesake Grain growth Plating symbols Elastic modulus Diffractometer |
| Zdroj: | Applied Surface Science. 257:9251-9259 |
| ISSN: | 0169-4332 |
| DOI: | 10.1016/j.apsusc.2011.04.120 |
| Popis: | The surface of carbon steel was modified by electrochemical deposition of Ni in a standard Watt's bath using dc and pulse plating electrodeposition. The aim was to compare the microstructure and surface mechanical properties of the deposit obtained by both techniques. Materials characterization was conducted using field emission scanning electron microscope fitted with scanning transmission electron detector, atomic force microscope and X-ray diffractometer. Nanoindentation hardness, elastic modulus, adhesion, coefficients of friction and wear rates were determined for both dc and pulse electrodeposits. Experimental results indicate that pulse electrodeposition produced finer Ni grains compared to dc plating. Size of Ni grains increased with deposition. Both dc and pulse deposition resulted in grain growth in preferred (2 0 0) orientation. However, presence of Ni (1 1 1) grains increased in deposits produced by pulse deposition. Pulse plated Ni exhibited higher hardness, creep and coefficient of friction and lower modulus of elasticity compared to dc plated Ni. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect