Precise Determination of Trace Hydrogen in SA508-3 Steel for Nuclear Reactor Pressure Vessels
Hao, Luhan1,2,3; Zhao, Wei1,2; Peng, Yan1; Sun, Mingyue2; Li, Dianzhong2; Liu, Hu3,5; Wang, Xiaojing3,6; Umar, Ahmad4; Guo, Zhanhu3
Corresponding AuthorHao, Luhan( ; Peng, Yan( ; Sun, Mingyue( ; Guo, Zhanhu(
AbstractHydrogen is one of the most detrimental elements in steel, therefore it must be strictly controlled, especially in the ferritic steel SA508-3 used in nuclear power plant, due to its persistent exposure to irradiated environment. However, the tests of hydrogen concentration in current industry have provided usually unstable and sparse results, which seriously perplexes practitioners. In the present study, tested hydrogen contents of a series of specimens with different machining and cleaning conditions were compared. Experimental and theoretical investigations showed that differences in surface contamination can significantly influence hydrogen analysis result, and the measured hydrogen content is the combination of the inherent hydrogen in the steel and the adsorbed hydrogen on the surface. Time-of-Flight Secondary Ion Mass Spectrometry (TOF-SIM) was then used to determine the hydrogen concentration gradient from the surface to the base of the SA508-3 steel, with the aim of confirming the existence of surface hydrogen. The result demonstrated that, if the specimen surface is in a rough and polluted state, the count intensity of hydrogen on the specimen surface, which qualitatively reflects the content of surface hydrogen can be more than 4 times that in the base of the specimen. Finally, on the basis of the analysis of tested results, a pre-treatment method combining a certain machining speed and ultrasonic cleaning is proposed in order to obtain a stable and reliable hydrogen analysis result. Furthermore, a mass of practical industry data is used to confirm the effectiveness of this pre-treatment method.
KeywordDetermination Trace Hydrogen SA508-3 Steel Nuclear Reactor Pressure Vessels
Funding OrganizationNatural Science Foundation of Hebei Province of China
Indexed BySCI
Funding ProjectNatural Science Foundation of Hebei Province of China[E2016203485]
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000449470400016
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Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorHao, Luhan; Peng, Yan; Sun, Mingyue; Guo, Zhanhu
Affiliation1.Yanshan Univ, Natl Engn Res Ctr Equipment & Technol Cold Strip, Qinhuangdao 066004, Peoples R China
2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China
3.Univ Tennessee, Dept Chem & Biomol Engn, Knoxville, TN 37996 USA
4.Najran Univ, Fac Sci & Arts, Dept Chem, Promising Ctr Sensors & Elect Devices, Najran 11001, Saudi Arabia
5.Zhengzhou Univ, Natl Engn Res Ctr Adv Polymer Proc Technol, Zhengzhou 450002, Henan, Peoples R China
6.Jiangsu Univ Sci & Technol, Sch Mat Sci & Engn, Zhenjiang 212003, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Hao, Luhan,Zhao, Wei,Peng, Yan,et al. Precise Determination of Trace Hydrogen in SA508-3 Steel for Nuclear Reactor Pressure Vessels[J]. SCIENCE OF ADVANCED MATERIALS,2018,10(11):1651-1657.
APA Hao, Luhan.,Zhao, Wei.,Peng, Yan.,Sun, Mingyue.,Li, Dianzhong.,...&Guo, Zhanhu.(2018).Precise Determination of Trace Hydrogen in SA508-3 Steel for Nuclear Reactor Pressure Vessels.SCIENCE OF ADVANCED MATERIALS,10(11),1651-1657.
MLA Hao, Luhan,et al."Precise Determination of Trace Hydrogen in SA508-3 Steel for Nuclear Reactor Pressure Vessels".SCIENCE OF ADVANCED MATERIALS 10.11(2018):1651-1657.
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