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Cavitation erosion of the rudder has been a serious problem in the high-speed container ship industry. It is well known that the lifetime of a conventional coating system is about 6 months against cavitation bubble collapse. Although STS 316L stainless steel has been applied to prevent such a problem, there are several drawbacks such as high repair cost and poor workability.
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When coatings are applied to substrates as e.g., metal, the adhesion of the cured paint is a critical parameter for the final performance of the paint film. The adhesion of the paint to the substrate influences many properties of the paint, which including visual appearance, anticorrosive performance, flexibility, resistance against scribing and scratching, delamination, blistering and many more. Many actions can be taken to influence and improve the adhesion of a coating to a substrate.
This paper discusses the design philosophy for corrosion inhibitors used for carbon capture, transportation, and storage and the performance testing using rotating cylinder autoclave (RCA) and electrochemical impedance spectroscopy (EIS) methods under CO2 supercritical conditions.
A century ago, automotive companies developed the laboratory salt spray corrosion test method standardized in ASTM B117. Even then they knew this quality control test did not produce realistic exposures. Wet-dry cyclic tests provided modest improvements in correlation and have been used in architectural applications for many years.
Corrosion inhibitors to provide protection of sucker-rod threads and box cavities against corrosive well fluids and to protect the threads from galling. Inhibited lubricants and tests to select.
Corrosion inhibitors to provide protection of sucker-rod threads and box cavities against corrosive well fluids and to protect the threads from galling. Inhibited lubricants and tests to select. Historical Document 1995
HISTORICAL DOCUMENT. Describes the use of iron counts as a corrosion monitoring method and some problems encountered. Includes sections on sampling, analysis, and interpretation.
HISTORICAL DOCUMENT. For corrosion control personnel: Determination of the general condition of a pipeline dielectric coating by measurement of conductance (1/R) on sections of underground pipelines.
This guide covers and describes the factors that influence laboratory immersion corrosion tests, particularly mass loss tests. These factors include apparatus, sampling, test specimen, test conditions (test solution composition, temperature, gas sparging, fluid motion, solution volume, method of supporting test specimens, duration of test), methods of cleaning test specimens, imterpretation of results, and calulation of corrosion rates. This guide also emplasizes the importance of recording all pertinent data and provides a checklist for reporting test data.
This AMPP standard establishes a standard test procedure for pack bed carburization of alloys used for ethylene manufacture. The pack bed carburization procedure is specified in this standard because it is simple to perform. The test specimen geometry chosen reflects the intent of the procedure to be used for evaluation of carburization of furnace tube alloys intended for ethylene manufacture.
Fluorourethane coatings based on FEVE, fluoroethylene vinyl ether chemistry, have been used globally for over 30 years. This technology has a proven record of outstanding performance against exposure to the elements and has been used in applications ranging from aerospace to architectural structures. Recently, the bridge market has taken notice of this high performance, especially in harsh marine environments. Resistance to degradation by UV light is important to the longevity of a bridge structure, but it could be argued that corrosion resistance is the key performance indicator for a protective topcoat.
The objective of the study is to evaluate the effect of elemental and ionic Hg towards carbon steel corrosion in sweet and sour environments with and without Corrosion Inhibitor (CI) injection. Several evaluations are conducted to study the effect of Hg deposition and fluid corrosion behaviour via Corrosion Rate (CR), solution chemical properties, surface profile and corrosion product analysis. Bubble test was carried out in glass cells and high-pressure rotating cylinder electrode (HPRCE) autoclaves test under multiple variables to study the CR behaviour.