Sub-size tensile specimen design for in-reactor irradiation and post-irradiation testing

Gussev, Maxim N.; Howard, Rob L; Terrani, Kurt A.; Field, Kevin G.

doi:10.1016/j.nucengdes.2017.06.008

Cited by 62 publications

(29 citation statements)

References 53 publications

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“…Miniature tensile specimens referred to as SS-Mini were fabricated from the SZ and BM regions to investigate the tensile properties and local deformation behavior of the material [1]. The SS-Mini specimen used in this study is shown in Figure 2.…”

Section: In-situ Tensile Testsmentioning

confidence: 99%

“…Figure 2. Drawings (left, dimensions are in millimeters [1]) and typical digital image of the SS-Mini tensile specimen (right) showing the surface coating and the superimposed line on the gauge section that is used in the DIC analysis.…”

Section: In-situ Tensile Testsmentioning

confidence: 99%

“…residual stresses in FSW welds [1][2][3][4]. However, it is not clear if the residual stresses that led to the brittle crack in the 1 mm thick 14YWT plate were generated entirely in the SZ during FSW or may have also accumulated during severe deformation caused by the series of hot rolling runs to produce the 1 mm thick 14YWT plate.…”

Section: Start Of Fsw Stir Zonementioning

confidence: 99%

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Complete Status Report Documenting Development of Friction Stir Welding for Joining Thin Wall Tubing of ODS Alloys

Hoelzer

Bunn

Gussev

2017

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The development of friction stir welding (FSW) for joining thin sections of the advanced oxide dispersion strengthened (ODS) 14YWT ferritic alloy was initiated in Fuel Cycle Research and Development (FCRD), now the Nuclear Technology Research and Development (NTRD), in 2015. The first FSW experiment was conducted in late FY15 and successfully produced a bead-on-plate stir zone (SZ) on a 1 mm thick plate of 14YWT (SM13 heat). The goal of this research task is to ultimately demonstrate that FSW is a feasible method for joining thin wall (0.5 mm thick) tubing of 14YWT.

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Section: In-situ Tensile Testsmentioning

confidence: 99%

Section: In-situ Tensile Testsmentioning

confidence: 99%

Section: Start Of Fsw Stir Zonementioning

confidence: 99%

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Complete Status Report Documenting Development of Friction Stir Welding for Joining Thin Wall Tubing of ODS Alloys

Hoelzer

Bunn

Gussev

2017

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“…The SS-J type specimen configuration is shown in Figure 4. This tensile specimen geometry has seen wide spread use in HFIR irradiations since first being introduced by Japanese researchers in the 1990s [26]. Originally, the specimen geometry had pin holes in each tensile head to facilitate tensile testing but in the past decade most irradiation programs have shifted towards eliminating these features in favor of shoulder loading.…”

Section: 2/ Irradiation Capsule Designmentioning

confidence: 99%

“…The SS-J type is routinely produced in three thicknesses: 0.25 mm, 0.50 mm and 0.75 mm. It should be noted that Byun et al [27] and Gussev et al [26] evaluated the effect of the thickness to width (T/W) ratio on the tensile properties and showed the T/W ratio plays a significant effect in the total elongation values of SS-J type specimens. Here, the 0.50 mm thickness was selected for use in the HFIR irradiations as it provided the highest number of specimens within each irradiation capsule while providing the median value of total elongation values between the three thickness variants.…”

Section: 2/ Irradiation Capsule Designmentioning

confidence: 99%

Database on Performance of Neutron Irradiated FeCrAl Alloys

Field¹,

Briggs²,

Littrell³

et al. 2016

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Tensile Plasticity of Miniature Specimens for a Low Alloy Steel Investigated by Digital Image Correlation Technique

Yang

Wang

Song

et al. 2021

steel research int.

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Miniature specimens are widely being used to determine tensile properties of various size-limited new materials, especially quickly evaluate or monitor changes in mechanical properties of in-service reactor components to ensure their continuous operation with large safe margins. Although tensile properties of the miniature specimens are investigated extensively, the basic mechanism on such size effects, especially tensile plasticity, is not understood well. Here, tensile properties of A588 low alloy steel specimens with different gauge lengths and thicknesses are systematically investigated in situ using the digital image correlation technique. The findings reveal that the increase in the post-necking elongation with decreasing the specimen gauge length and the decrease with decreasing the specimen thickness are due to the scale-dependent strain-rate sensitivity, whereas the constant uniform elongation is attributed to the stable strain hardening exponent. An empirical formula on the relationship between the total elongation and the strain-rate sensitivity is proposed to describe the basic mechanism behind the specimen size-dependent elongation.

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Sub-size tensile specimen design for in-reactor irradiation and post-irradiation testing

Cited by 62 publications

References 53 publications

Complete Status Report Documenting Development of Friction Stir Welding for Joining Thin Wall Tubing of ODS Alloys

Complete Status Report Documenting Development of Friction Stir Welding for Joining Thin Wall Tubing of ODS Alloys

Database on Performance of Neutron Irradiated FeCrAl Alloys

Tensile Plasticity of Miniature Specimens for a Low Alloy Steel Investigated by Digital Image Correlation Technique

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