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The objective of this study is to investigate the effect of laser cladding coating on wear and damage behaviors of heavy-haul wheel/rail materials by means of a laboratory-scale rolling–sliding wear apparatus. The results indicate that the wheel/rail rollers with laser cladding form a uniform and compacted coating without any cracks or stomata. The laser cladding coating markedly improves wear-resistance...
The objective of this work was to determine the mechanisms of tribofilm formation during the gross slip fretting wear of Ti6Al4V and a thick nickel oxide film. This was accomplished by conducting bench level fretting wear experiments on Ti6Al4V surfaces mated with ∼75μm thick nickel oxide scale. The nickel oxide scale was grown by oxidizing commercially pure nickel at 1000°C. The fretting wear experiments...
Nanostructured diamond (nano-diamond) coated cutting tools have a potential to supplant costly polycrystalline diamond tools. However, coating delaminations remain the primary wear mode that often results in catastrophic tool failures. Studying tool wear will help to understand machining parameter effects on coating delaminations. Moreover, monitoring coating delamination events can prevent production...
Composite materials are widely used in industry to resist wear of machinery, equipment and facilities. The high wear resistance of composite materials benefits from the combination of a hard reinforcing phase and a ductile/tough matrix, which may effectively resist wear under various wear conditions. However, the wear resistance of composites depends largely on their microstructure, reinforcement/matrix...
Abrasive wear of composite materials is a complicated surface damage process, affected by a number of factors, such as microstructure, mechanical properties of the target material and the abrasive, loading condition, environmental influence, etc. Microstructure is one of the major factors; however, its effect on the wear mechanism is difficult to investigate experimentally due to the possible synergism...
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