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Current test regimes and acceptance levels as concerns the strong detrimental influence on toughness and corrosion resistance of intermetallic particles (IMP) in the microstructure of duplex stainless steels.
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Special enhancements: (1) use the high temperature reference electrode - Ag/AgCl; (2) define the test temperature measurement procedure; (3) check the accuracy of the reference electrode; (4) develop an inexpensive anode isolation method.
Round-robin (RR) tests on electrochemical noise (EN) measurements with dummy cells have been performed in the European Cooperative Group on Corrosion Monitoring of Nuclear Materials since 2006.
Round-Robin tests on electrochemical noise between 2014 and 2017 showed that only very few commercial potentiostats can perform valid EN measurements. This paper is aimed at guiding users by providing the minimum knowledge for EN measurements
In this paper, the influence of various side-groove root configurations on critical stress intensity factor for sulfide stress cracking (KISSC) and finite-element analysis (FEA) results were focused upon.
There appears to be a need for long-term service data for wrought and welded materials with grain boundary precipitation, which can then be compared with ASTM G28 or ASTM A262 data to provide confidence in utilizing such materials.
This paper provides illustrative examples of how seemingly small changes to test methodology in preliminary screening tests can significantly influence the absolute performance and relative ranking of corrosion inhibitors.
In this study, we retrieved multiple samples from several wells in an onshore oilfield and submitted them for 16S rDNA taxonomic analysis in two different laboratories. The results showed significant differences between laboratories.
This paper details a novel surface preparation process that is suitable for Duplex coating of galvanized steel intended for a variety of atmospheric and embedded service applications. It provides all the properties necessary for excellent coating performance and longevity, including high adhesion, excellent resistance to cathodic disbondment, and resistance to ingress of water, without the drawbacks associated with abrasive blasting, the traditional surface preparation method.
This test method includes the procedure for pH value determination, the data required to be collected, the proposed methods and requirements of data collection, and the calculation method. The factors taken into consideration include corrosive gas, ions in the water, temperature, and pressure. The effect of oxygen is excluded.
This AMPP standard test method provides a comprehensive methodology to evaluate the relative performance of insulation materials in accelerated and simulated field conditions on bare metal substrates. This test method is intended for use by corrosion control personnel, design engineers, project managers, purchasing personnel, and construction engineers and managers. It is applicable to insulated piping and equipment in industrial applications such as oil and gas gathering, distribution, transmission and refining, power generation, mining, and chemical industries.
This AMPP standard provides a series of effective and economical test methods to evaluate the performance of candidate offshore platform new construction and maintenance coatings. The testing protocol is established to simulate the offshore environment and based on the major failure modes observed on offshore platforms. The test results will rank the candidate coating systems for end-users to select and coating manufacturers to develop reliable coating systems.