Surface Modification in Marine Engineering

Engineering Critical Assessments of Marine Pipelines with 3D Surface Cracks Considering Weld Mismatch

Offshore pipelines are usually constructed by the use of girth welds, while welds may naturally contain flaws. Currently, fracture assessment procedures such as BS 7910 are based on the stress-based methods and their responses for situations with large plastic strain is suspicious. DNV-OS-F101 with limited modifications proposes a strain-based procedure for such plastic loads. In this paper 3D ...

Review paper: surface modification for bioimplants: the role of laser surface engineering.

Often hard implants undergo detachment from the host tissue due to inadequate biocompatibility and poor osteointegration. Changing surface chemistry and physical topography of the surface influences biocompatibility. At present, the understanding of biocompatibility of both virgin and modified surfaces of bioimplant materials is limited and a great deal of research is being dedicated to this as...

Plastic Surface Modification

Effect of Variations in Micropatterns and Surface Modulus on Marine Fouling of Engineering Polymers

We report on the marine fouling and fouling release effects caused by variations of surface mechanical properties and microtopography of engineering polymers. Polymeric materials were covered with hierarchical micromolded topographical patterns inspired by the shell of the marine decapod crab Myomenippe hardwickii. These micropatterned surfaces were deployed in field static immersion tests. PDM...

microleakage evaluation in regard to cavo-surface designs & treatments

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