This work aims at investigating experimentally fretting corrosion, that is, corrosion induced by friction of AISI 316L SS against poly(methyl methacrylate) under small displacements, and subsequently using the data to model wear. The observed wear on the stainless steel has been modeled using the Point Defect Model (PDM). The originality of this approach in applying the PDM to fretting corrosio...

Passivity breakdown on HDSS 2707 has been studied and the electrochemical data are interpreted in terms of Point Defect Model. Pitting parameters determined, including polarizability at bl/s interface, defect annihilation rate, diffusion coefficient. The potential is demonstrated to be linearly related log [Br-], pH, square root scan rate (v1/2), follows a near-normal distribution. critical vac...

Theory and stochastic lattice-gas modeling is developed for the formation of intercalated metal islands in the gallery between the top layer and the underlying layer at the surface of layered materials. Our model for this process involves deposition of atoms, some fraction of which then enter the gallery through well-separated point-like defects in the top layer. Subsequently, these atoms diffu...

Design for yield (DFY) problems have received increasing attention. Of particular concern in DFY problems is how to formulate and reduce a critical area for random defects. Arranging interconnects is recognized as an effective means of improving the sensitivity towards random defects. Previous works have demonstrated that random defects significantly influence interconnections and the effective...

Selective laser melting (SLM) is a potential additive manufacturing (AM) technology. However, the application of SLM was confined due to low efficiency. To improve efficiency, SLM fabrication with a high layer thickness and fine powder was systematically researched, and the void areas and hollow powders can be reduced by using fine powder. Single-track experiments were used to narrow down proce...

We present results on photoexcited carrier lifetimes in few-layer transition metal dichalcogenide MoS2 using nondegenerate ultrafast optical pump-probe technique. Our results show a sharp increase of the carrier lifetimes with the number of layers in the sample. Carrier lifetimes increase from few tens of picoseconds in monolayer samples to more than a nanosecond in 10-layer samples. The invers...