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CorrCompilation: Advancements for Control of Inorganic Scale, Volume 3
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CorrCompilation: Advancements for Control of Inorganic Scale, Volume 3 (e-book)

Product Number: 37650-e
ISBN: 978-1-57590-393-4
Author: edited by Wayne W. Frenier, FNACE
$125.00
Picture for O2 Contamination in Ssc / Hic Qualification Test Environments – Impact on Test Results and Discussion on Acceptable Limits
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O2 Contamination in Ssc / Hic Qualification Test Environments – Impact on Test Results and Discussion on Acceptable Limits

Product Number: 51319-12894-SG
Author: Christophe Mendibide
Publication Date: 2019
$20.00

It is a well-admitted fact that oxygen contamination shall be avoided during standard H2S cracking tests. Until 2016 NACE technical methods related to H2S cracking resistance evaluation (e.g. NACE TM0284 and NACE TM0177) only gave general suggestions about O2 pollution. For instance it was recommended that ‘tests vessels shall be capable of being purged to remove O2’ and also that ‘O2 contamination is evident by a cloudy appearance’. In the 2016 revisions of NACE TM0177 and NACE TM0284 documents quantitative limits of O2 contamination were included:- Test method must ensure that the test solution contains less than 50 mass. ppb dissolved O2 before the introduction of H2S.- A more stringent limit of 10 ppb max. is imposed when testing Corrosion Resistant Alloys (CRA) or high strength low alloy steels (> 80 ksi).However the scientific basis of these values have not been well-established yet and there is still a lack of available experimental data to illustrate the potential impacts of small dissolved oxygen contents on the cracking resistance of different materials. In addition while the revised test methods explicitly address initial contamination of the test solution before H2S introduction they do not consider a continuous oxygen supply during testing. This possible continuous O2 contamination is extremely difficult to eliminate and control for example in case of poor laboratory practices oxygen ingress may arise by permeation through polymer tubings used for the tests or in case of a lack of tightness of gaskets.In order to better understand the impact of O2 contamination on H2S cracking a 3-years Joint Industrial Project (JIP) was launched at the end of 2015. The objectives were to evaluate if continuous O2 contamination can affect H2S cracking test results. A range of steel grades covering different types of O&G applications such as line pipe OCTG and flexible wires were used. Sulfide Stress Cracking (SSC uniaxial tensile as well as 4 point-bend tests) and Hydrogen Induced Cracking (HIC) tests were conducted with well-controlled and continuous O2 contamination. Three levels of O2 partial pressures in the gas feed corresponding to 300 ppb 50 ppb and less than 10 ppb dissolved O2 were used. These levels were selected to simulate poor deaeration and the current limits specified in the last standard revisions respectively.In parallel to the standard qualification tests hydrogen permeation and weight-loss corrosion experiments were performed with the same test matrix covering all regions of the SSC severity diagram. This paper aims at sharing the main results of this JIP. 

Ethics for the Corrosion Professional_SPANISH

Product Number: Ethics eCourse_Spanish
$99.00

La profesión de la corrosión y los profesionales certificados que trabajan en la industria están comprometidos a proteger a las personas, los activos y el medio ambiente de los efectos de la corrosión. Aquellos encargados de entregar la experiencia técnica a la sociedad deben realizar su trabajo con el conocimiento y la comprensión de los principios éticos que se esperan y requieren de esos profesionales.

El Código de Ética Internacional de NACE se discute junto con estudios de casos y presenta violaciones éticas de la vida real de las atestaciones del Instituto Internacional de NACE. En este curso se revisan los marcos para tomar decisiones éticas junto con los factores de la industria de la corrosión que pueden conducir a un comportamiento no ético.

El curso es un curso en línea de autoaprendizaje que no debería tomar más de 1,5 a 2 horas para completar.

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The corrosion profession, and the certified professionals who work in the industry, are committed to protecting people, assets and the environment from the effects of corrosion. Those tasked with delivering the technical expertise to society must conduct their work with the knowledge and understanding of the ethical principles expected and required of those professionals.

The NACE International Code of Ethics is discussed in conjunction with case studies and features real-life ethical violations of the NACE International Institute attestations. Frameworks for making ethical decisions are reviewed in this course along with the factors in the corrosion industry that can lead to unethical behavior.

The course is an online, self-paced course in SPANISH which should take no longer than 1.5 to 2 hours to complete.

Picture for MD-04 Getting Your Message Across
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MD-04 Getting Your Message Across

Product Number: MD-04 Getting Your Message Across
$0.00