| Dedication | 第3-4页 |
| 摘要 | 第4-5页 |
| Abstract | 第5页 |
| Chapter 1 Introduction | 第12-35页 |
| 1.1 Corrosion of steel structures in Marine Environments overview | 第12-18页 |
| 1.1.1 Importance of Structural Steel in Ocean Engineering and itsApplication | 第14-15页 |
| 1.1.2 Offshore Structures | 第15-16页 |
| 1.1.3 The Use of High Strength Steels | 第16-18页 |
| 1.2 Corrosion Behavior and Seawater Corrosion of Metals | 第18-26页 |
| 1.2.1 Types of Marine Corrosion | 第22-23页 |
| 1.2.2 Factors Influencing Corrosion | 第23-24页 |
| 1.2.3 Types of Corrosion | 第24-26页 |
| 1.3 Literature Review On Laser Cladding and Coating Materials | 第26-34页 |
| 1.3.1 Laser Cladding/Clad Re-Melting | 第28-30页 |
| 1.3.2 Important Input Parameters in Laser Cladding | 第30-31页 |
| 1.3.3 Application | 第31页 |
| 1.3.4 Coating | 第31-32页 |
| 1.3.5 Inference of Literature and Empirical Literature | 第32-34页 |
| 1.4 Aim and Objectives of the Research | 第34-35页 |
| Chapter 2 Materials and Experimental Methods | 第35-44页 |
| 2.1 Location | 第35页 |
| 2.2 Materials | 第35-40页 |
| 2.2.1 Experimental Procedure | 第36-37页 |
| 2.2.2 Laser Cladding Experimentation | 第37-40页 |
| 2.2.3 Micro-Structure and Scanning Electronic Microscopy (SEM) TestPreparation | 第40页 |
| 2.3 X-Ray Diffraction Test Preparation | 第40页 |
| 2.4 Wearing or Friction Test Preparation | 第40-41页 |
| 2.5 Micro Hardness Test Preparation | 第41页 |
| 2.6 Electrochemical Corrosion Test Preparation | 第41-44页 |
| Chapter 3 Micrograph of Base Material and ExperimentalSamples | 第44-72页 |
| 3.1 Optical Microstructure of Base Material (BM) and ExperimentalSamples | 第44-52页 |
| 3.1.1 Pre-placement laser method experimental samples | 第45-48页 |
| 3.1.2 Powder feeder laser method experimental samples | 第48-52页 |
| 3.2 Phase Analysis Results | 第52-56页 |
| 3.3 SEM and EDS analysis results | 第56-72页 |
| 3.3.1 Pre-placement laser method experimental samples | 第57-62页 |
| 3.3.2 Powder feeder laser method experimental samples | 第62-66页 |
| 3.3.3 Energy Dispersive spectrometer (EDS) results samples | 第66-72页 |
| Chapter 4 Properties of Base Materials and CladdedMaterials | 第72-89页 |
| 4.1 Friction Test Results of Pre-Placement Laser Method Experimental Samples of 300Grams' Load at Room Temperature | 第72-73页 |
| 4.2 Friction Test Results of Powder Feeder Laser Method Experimental Samples of 300Grams' Load at Room Temperature | 第73-75页 |
| 4.3 Friction Test Results of Pre-Placement Laser Method Experimental Samples of 500Grams' Load at High Temperature | 第75-76页 |
| 4.4 Friction Test Results of Powder Feeder Laser Method Experimental Samples of 500grams' Load at High Temperature | 第76-77页 |
| 4.5 Surface Hardness Test of Experimental Specimens | 第77-79页 |
| 4.6 Electrochemical corrosion Test results and analysis | 第79-87页 |
| 4.6.1 corrosion results of pre-placement laser method experimentalsamples | 第82-84页 |
| 4.6.2 corrosion results of powder feeder laser method experimentalsamples | 第84-87页 |
| Summary of Chapter 4 | 第87-89页 |
| Chapter 5 Conclusions and Recommendation | 第89-92页 |
| Acknowledgement | 第92-93页 |
| References | 第93-100页 |
