corrosion testing Articles

  • Corrosion Measurement at Refineries

    Test task: Corrosion in petrochemical industry Test environment: Refinery Material: Steel Measuring Mode: Corrosion Measurement   SONOWALL 70 - Ultrasonic testing in safety-critical areas For NDT service companies, the determination of wall ...

  • Research on buried pipe corrosion assessment using corrosion sensors

    This research aims to establish a water pipeline replacement plan that employs soil-corrosion evaluation technology and utilizes easy-to-use corrosion sensors by assessing the performances and validating operation methods based on verification experiments. Since 2005, we have assessed the performances of two different types of sensor, and have confirmed that bar-type sensors can detect soil ...


    By IWA Publishing

  • Corrosion of Electronic Components by Hydrogen Fluoride

    Generation of hydrogen fluoride (HF) from fire suppression by some gaseous agents is a major concern, because HF causes corrosion. Without proper precautions, the HF corrosion damage to some electronic facilities can be significant. A study has been carried out to evaluate the corrosion effect of HF on electronic equipment. This article describes details of the corrosion study in terms of test ...


    By SAGE Publications Ltd

  • Reasons and prevention of corrosion-induced failures of prestressing steel in concrete

    Serious damages in post- and pretensioned prestressed components have occurred due to hydrogen-induced stress corrosion cracking of prestressing steel. The failures happened due to onsite conditions and were favoured by the sensitivity of the steels towards hydrogen. The contribution describes the mechanism of the fracturing process, the corrosion testing of prestressing steel and gives an ...


    By Inderscience Publishers

  • Combating Corrosion - Committee G01 Standards Fight Nature’s Destructive Tendencies

    The evening news may leave many of us feeling war-weary, but one ASTM International technical committee has been successful in conflict of a different sort. It’s a commonplace but epic struggle between the natural and civilized worlds — the fight against metal corrosion. For the past half-century, the weapon of choice of ASTM Committee ...


    By ASTM International

  • Mixed-oxidant application in cooling tower maintenance

    Tests using the MIOX-generated mixed-oxidant solution instead of oxidizing biocides (chlorine or bromine) for cooling tower maintenance, and eliminating all other biocides, in first an established cooling tower and subsequently in two new cooling towers found: (1) aerobic bacteria counts consistently less than 1000/mL in the cooling water (no colonies on the standard Easicult TTC1 dip slide ...

  • Impact of Corrosion on Electronic Equipment

    Corrosion is the destruction of metals through reaction with compounds in their environment. It is a natural process because compounds such as oxides, sulphides and chlorides are formed and these are stabler than pure metals. Electronic circuits and components are omnipresent in our environment. Until recently, the thousands of soldered joints that an electronic circuit contains were ...


    By Bioconservacion SA

  • Failure analysis showing the effect of sulphur content in stainless steel on the resistance to stress corrosion cracking in marine environments at ambient temperatures

    The risk of environmentally assisted cracking in downhole components is high due to sour conditions, i.e. the presence of hydrogen sulphide. Therefore a range of materials possessing excellent corrosion resistance are employed. However, corrosion is not only downhole related but is also a common problem on the platform deck itself due to airborne salts from ocean spray. For this reason the ...


    By Inderscience Publishers

  • Evaluation of corrosion and scaling tendency indices in a drinking water distribution system: a case study of Bandar Abbas city, Iran

    Corrosion and scaling is a major problem in water distribution systems, thus evaluation of water corrosivity properties is a routine test in water networks. To evaluate water stability in the Bandar Abbas water distribution system, the network was divided into 15 clusters and 45 samples were taken. Langelier, Ryznar, Puckorius, Larson–Skold (LS) and Aggressive indices were determined and ...


    By IWA Publishing

  • Chinese / Corrosive Drywall Update

    A lot has happened in the field of Chinese (aka corrosive) drywall syndrome since this subject has surfaced. As we learn more about the conditions present in Chinese drywall affected buildings and have better understood the extent of change affecting materials within these buildings, our opinions on how to test for Chinese drywall and how to affect repairs have also evolved with this new ...

  • Higher corrosion resistance of old cast iron pipes installed for early stage of water supply network in Yokohama City

    The old gray cast iron for water supply pipes in Yokohama City which was made in the UK in 1887 is highly corrosion resistant. The corrosion behavior of the old gray cast iron in soils was studied. For comparison, a gray cast iron used for modern pipes, a spheroidal graphite cast iron, and a carbon steel were tested. The corrosion potentials and corrosion rates were measured. The corrosion ...


    By IWA Publishing

  • Application of Ozone in Cooling Water Systems

    The first comprehensive study - bench-top laboratory investigations, pilot scale testing, and critical monitoring and evaluation of field applications - addressing the effects of ozone as a stand-alone cooling water treatment program is presented. The study also represents the first critical comparison of ozone-treated systems with non-treated systems. Excellent corrosion control can be attained ...


    By Absolute Systems Inc.

  • Evaluation of Compliance Strategies to Meet Stringent Effluent Copper Limits

    The objective of this evaluation was to determine the optimal means for the City of Puyallup, Washington to comply with stringent wastewater treatment plant effluent copper limits through bench and pilot testing of possible approaches. A source evaluation determined that corrosion of domestic and commercial plumbing was the primary source of copper in wastewater entering Puyallup’s Water ...

  • How UV can reduce corrosion in swimming pool structure - Case Study

    UV reduces the risk of stress corrosion cracking by removing the root cause – chloramines. The polychromatic emission of medium pressure UV lamps breaks the chlorine-nitrogen bond in chloramine molecules by photolysis. In 1985, twelve people were killed in Uster, Switzerland when the concrete roof of a swimming pool collapsed after only thirteen years of use.  The roof was supported by ...


    By atg UV Technology

  • Bacterial biofilms formed in arsenic-containing water: biodeterioration of water network materials

    The immersion of any material in a water system triggers a surface microbial colonization which simultaneously influences the corrosion behavior of the substratum. The present study was focused on the As(V) influence on the biofilm formation and their consequences on the corrosion behavior of different substrata. Commercial materials used in water distribution networks: alloys based on Fe, Zn ...


    By IWA Publishing

  • Effect of electrochemical treatment at fresh condition in enhancing the corrosion resistance in concrete

    The present study concerns the electrochemical treatment to increase the resistance against chloride–induced corrosion of steel in concrete, which was ensured by a microscopic examination and corrosion tests. The current density (DC) applied to the embedded steel immediately after casting of concrete ranged 125, 250 and 500 mA/m² for two weeks. As a result, an increase in the current ...


    By Inderscience Publishers

  • Inhibition effect of phosphorus-based chemicals on corrosion of carbon steel in secondary-treated municipal wastewater

    Secondary-treated municipal wastewater (MWW) could supply a viable alternative water resource for cooling water systems. Inorganic salts in the concentrated cooling water pose a great challenge to corrosion control chemicals. In this study, the inhibition effect of 1-hydroxy ethylidene-1,1-diphosphonic acid (HEDP), trimethylene phosphonic acid (ATMP) and 2-phosphonobutane-1,2,4-tricarboxylic ...


    By IWA Publishing

  • Case study - Tarrant Regional Water District (TRWD)

    Service: Electromagnetic Testing Client: Tarrant Regional Water District (TRWD) Type of Pipelines: Transmission Mains Diameter: 72, 84 and 90-inch Pipe Material: PCCP Length: ~1 mile The Tarrant Regional Water District (TRWD) is a raw water supplier that serves ten counties in north central Texas. Most of the 1.5 million people served by the District are in Tarrant County, ...

  • Zinc and copper in roof runoff

    The zinc and copper content of roof runoff could originate from different sources such as dry and wet deposition and the corrosion of the material. The zinc runoff rate from a galvanized surface depends on the corrosion products formed during the dry days, the rain intensity and roof slope, which determinates the contact time. In the present study the contact time dependence of zinc rate and the ...


    By IWA Publishing

  • Stainless steels within desalination for reliable water supply

    To assure sustainable water production, the materials used in desalination plants need to perform for many decades without failures. During the last years, duplex - austenitic-ferritic - stainless steels have been selected for several desalination projects due to their unique combination of mechanical properties and corrosion resistance. Price stability of those grades, as a consequence of a ...


    By Inderscience Publishers

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