Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 9251-9259 |
| Number of pages | 9 |
| Journal | Applied Surface Science |
| Volume | 257 |
| Issue number | 22 |
| DOIs | |
| State | Published - 1 Sep 2011 |
Bibliographical note
Funding Information:The authors wish to acknowledge the support of Center of Research Excellence in Corrosion (CoRE-C) and the Ministry of Higher Education, Saudi Arabia. Assistance provided by Research Institute at the King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia is also appreciated. We are also thankful to Dr. Philippe Kemp for his assistance in tribometer tests.
Keywords
- Microstructure
- Nanoindentation
- Nickel
- Pulse electrodeposition
ASJC Scopus subject areas
- General Chemistry
- Condensed Matter Physics
- General Physics and Astronomy
- Surfaces and Interfaces
- Surfaces, Coatings and Films