Effect of Hydrogen in Plastic Zones of Single-Edge Notch HSLA Samples

dc.contributor.author Harvey, I.
dc.contributor.author Byrne, J.
dc.date 2018-02-14T05:45:09.000
dc.date.accessioned 2020-06-30T06:34:51Z
dc.date.available 2020-06-30T06:34:51Z
dc.date.copyright Sun Jan 01 00:00:00 UTC 1989
dc.date.issued 1989
dc.description.abstract <p>Hydrogen embrittlement has caused many service failures in linepipe steel. Service conditions present several avenues by which hydrogen can adversely affect the mechanical properties of such steel. Fesseler [1] reported that local mechanical damage can arise from handling and laying of pipe and that some cathodic protection schemes can in fact inject dangerous amounts of hydrogen into a steel. There can be synergism between these two aspects which can give extremely high hydrogen charging conditions resulting in failure [2]. Metallurgists in the oil and gas industries refer to this type of failure as hydrogen stress cracking (HSC). Future synthetic natural gas from coal gasification may contain as much as 50% H2 which will be very deleterious to linepipe properties. Sulfides present in natural gas, hydrogen sulfide or carbon disulfide, tend to inhibit the recombination of 2HADS → H2and therefore favor atomic hydrogen absorption into a steel [3]. Welding of linepipe is a potential source of nearly every known hydrogen problem depending on the circumstances of the technique [4]. Thus it is apparent that NDE techniques adaptable to field use will be important to the maintenance of thousands of miles of existing and future pipelines. The particular use of positron annihilation to be described could be one such technique.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/qnde/1989/allcontent/225/
dc.identifier.articleid 2451
dc.identifier.contextkey 5799567
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath qnde/1989/allcontent/225
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/59326
dc.language.iso en
dc.relation.ispartofseries Review of Progress in Quantitative Nondestructive Evaluation
dc.source.bitstream archive/lib.dr.iastate.edu/qnde/1989/allcontent/225/1989_Harvey_EffectHydrogen.pdf|||Fri Jan 14 22:43:29 UTC 2022
dc.source.uri 10.1007/978-1-4613-0817-1_225
dc.title Effect of Hydrogen in Plastic Zones of Single-Edge Notch HSLA Samples
dc.type event
dc.type.genre article
dspace.entity.type Publication
relation.isSeriesOfPublication 289a28b5-887e-4ddb-8c51-a88d07ebc3f3
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