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A new method for in situ measurement of loss of coating integrity. Tensile samples with pipeline coatings of thicknesses from 250 to 2000 μm were subjected to tensile elongation, electrochemical impedance measured before and after. Confirmed with techniques such as optical microscopy.
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An understanding of the relationship between color and our environment remains an area in which much research has been conducted; yet, we are ever fascinated with the topic of color and the nuances it has yet to unfold. Our work aims to begin a dialogue regarding color trends, color application in an environment, the psychological impact of color and an understanding of the balance between these philosophies.
Certain coating applications including those used in aerospace, industrial maintenance, construction and transportation industries require a combination of primer/topcoat or basecoat/clearcoat layers. These multilayered systems require complex application and curing procedures. Multiple formulation, application and processing steps not only contribute to environmental waste generation and pollution they also use an excessive amount of energy until a solid film has been produced
Structural steel, which is a critical component of many infrastructures, can suffer from deterioration of steel by reaction with air and its pollutants known as atmospheric corrosion when exposed to theenvironment. The risks associated with corrosion of newly-built and ageing infrastructure are high and their consequences costly. The recent International Measures of Prevention, Application, andEconomics of Corrosion Technologies (IMPACT) study led by NACE International (now renamed asAMPP) has shown for Canada the estimated annual corrosion cost to be $51.9 billion, which is 2.9% of Canada’s GDP.
Aerospace assets are subjected to routine maintenance cycles to prevent, monitor, and repair corrosion damage. Currently, the maintenance cycles are determined according to its model and following its respective requirements document (eg: NA(1) 01-1A-5091 or USAF(2) Technical Order 1-1-691).2 A new paradigm of condition-based maintenance (CBM) is highly desired, as a given asset will require different prevention, monitoring, and repair maintenance cycles depending on where it is deployed. As corrosion is the degradation of a material in response to its environment, CBM takes into consideration the variability of the environment (the conditions to which an asset is exposed) when determining appropriate maintenance intervals and what should be done at each interval.
This paper will examine the different restrictions and indicators currently used to classify coatings as ‘Green”. It will also take a brief look at the Organizations and Governmental agencies that classify coatings as ‘Green”. The process of how to certify and the certifying organizations will be discussed. Finally, I will propose some guidelines to develop a universal global standard based upon existing commonality that would then have to be accepted by the global sanctioning bodies and users, while overcoming the bureaucratic hurdles and other obstacles and challenges in the way
The exposure environment of an engineering material quite often has a large impact on how that material behaves over time. Environments are distinguished by differences in meteorological patterns, geography, salinity, Ultraviolet (UV) radiation, etc1-3. Thus, the degradation of various materials scales proportionately to the characteristics of the exposure site, with more severe sites leading to worse degradation. Developing an understanding of how the local environment impacts the corrosion rates of metals and the deterioration of anti-corrosion coatings is critical for informing asset maintenance schedules and lifetime predictions4.
Fighter Squadron Composite One One One (VFC-111) is a US Navy adversary squadron based out ofNaval Air Station (NAS) Key West, Florida. VFC-111 operates F-5 Tiger-II tactical fighter jets as part of their dissimilar air combat training program provided to fighter squadrons within the Navy, Marine Corps, Air Force, Air Force Reserve, and Air National Guard.