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08391 An Electrochemical Approach for Quantifying Flashrusted Surfaces after the Ultra High Pressure Waterjetting

Picture for 08391 An Electrochemical Approach for Quantifying Flashrusted Surfaces after the Ultra High Pressure
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Product Number: 51300-08391-SG
ISBN: 08389 2008 CP
Author: Moavin Islam, James Tagert, and Wayne McGaulley
Publication Date: 2008
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$20.00
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It is well established that when steel components are cleaned by Ultra High Pressure Waterjetting (UHP-WJ) the surface begins to oxidize or ‘flash rust’ (FR) within a short period of time. FR has a major impact on subsequent coating application on these components and in most cases only a light FR surface is acceptable. Currently, there is no quantitative or semi-quantitative technique to characterize or categorize the level (or grade) of FR. However, descriptive and visual standards developed by SSPC and NACE are available. These standards are routinely used in the waterjetting industry but they are subjective in nature. Attempts have been made in the past or are presently being made by different entities to come up with a more definitive methodology but with limited success. The present paper discusses the application of electrochemical techniques for characterizing FR surfaces in a quantitative/semi-quantitative manner.
It is well established that when steel components are cleaned by Ultra High Pressure Waterjetting (UHP-WJ) the surface begins to oxidize or ‘flash rust’ (FR) within a short period of time. FR has a major impact on subsequent coating application on these components and in most cases only a light FR surface is acceptable. Currently, there is no quantitative or semi-quantitative technique to characterize or categorize the level (or grade) of FR. However, descriptive and visual standards developed by SSPC and NACE are available. These standards are routinely used in the waterjetting industry but they are subjective in nature. Attempts have been made in the past or are presently being made by different entities to come up with a more definitive methodology but with limited success. The present paper discusses the application of electrochemical techniques for characterizing FR surfaces in a quantitative/semi-quantitative manner.
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08402 Development of a Proto-Type Field Device for Characterizing the Level of Flash Rust Formed After Ultra High Pressure Water Jetting

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ISBN: 08402 2008 CP
Author: Moavin Islam, James Tagert, and Wayne McGaulley
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00615 INSPECTION AND INTERPRETATION USING JOINT STANDARD NACE NO. 5/SSPC SP-12
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00615 INSPECTION AND INTERPRETATION USING JOINT STANDARD NACE NO. 5/SSPC SP-12

Product Number: 51300-00615-SG
ISBN: 00615 2000 CP
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Conference Paper - This paper describes the requirements of the standard, additional inspection points, and several uses of the standard in the field where clear specification language was imperative to successful project completion. NACE 5/SSPC-SP 12 standard confined to water jetting - which makes use of ultra-high pressure water that is nonabrasive.  Four levels of visible post-cleaning condition and three levels of non-visible condition are defined.
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