Creep strength and minimum strain rate estimation from Small Punch Creep tests

S. Holmström; Y. Li; P. Dymacek; E. Vacchieri; S. P. Jeffs; R. J. Lancaster; D. Omacht; Z. Kubon; E. Anelli; Joni Rantala; A. Tonti; S. Komazaki; Naveena; M. Bruchhausen; R. C. Hurst; P. Hähner; M. Richardson; D. Andres

doi:10.1016/j.msea.2018.06.005

Creep strength and minimum strain rate estimation from Small Punch Creep tests

S. Holmström (Corresponding Author), Y. Li, P. Dymacek, E. Vacchieri, S. P. Jeffs, R. J. Lancaster, D. Omacht, Z. Kubon, E. Anelli, Joni Rantala, A. Tonti, S. Komazaki, Naveena, M. Bruchhausen, R. C. Hurst, P. Hähner, M. Richardson, D. Andres

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31 Citations (Scopus)

Abstract

A new standard is currently being developed under the auspices of ECISS/TC 101 WG1 for the small punch testing technique for the estimation of both tensile and creep properties. Annex G of the new standard is covering the assessment and evaluation of small punch creep (SPC) data. The main challenge for estimating uniaxial creep properties from SPC data is the force to equivalent stress conversion between SPC and uniaxial creep tests. In this work a range of SPC assessment methodologies, benchmarked for the standard, are compared for verifying the best practice used in the standard. The estimated equivalent stresses for SPC are compared to uniaxial creep stresses at equal rupture times, using three alternative models. In-depth analyses are performed on SPC and uniaxial creep data for P92, F92 and 316 L steel tested within an inter-laboratory round robin. The formulation for SPC equivalent creep strain rate in the standard is also assessed.

Original language	English
Pages (from-to)	161-172
Number of pages	12
Journal	Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
Volume	731
DOIs	https://doi.org/10.1016/j.msea.2018.06.005
Publication status	Published - 25 Jul 2018
MoE publication type	A1 Journal article-refereed

Keywords

Creep strain rate
Creep strength
Small Punch Creep test
SPC
Standardization

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10.1016/j.msea.2018.06.005

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Holmström, S., Li, Y., Dymacek, P., Vacchieri, E., Jeffs, S. P., Lancaster, R. J., Omacht, D., Kubon, Z., Anelli, E., Rantala, J., Tonti, A., Komazaki, S., Naveena, Bruchhausen, M., Hurst, R. C., Hähner, P., Richardson, M., & Andres, D. (2018). Creep strength and minimum strain rate estimation from Small Punch Creep tests. Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 731, 161-172. https://doi.org/10.1016/j.msea.2018.06.005

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title = "Creep strength and minimum strain rate estimation from Small Punch Creep tests",

abstract = "A new standard is currently being developed under the auspices of ECISS/TC 101 WG1 for the small punch testing technique for the estimation of both tensile and creep properties. Annex G of the new standard is covering the assessment and evaluation of small punch creep (SPC) data. The main challenge for estimating uniaxial creep properties from SPC data is the force to equivalent stress conversion between SPC and uniaxial creep tests. In this work a range of SPC assessment methodologies, benchmarked for the standard, are compared for verifying the best practice used in the standard. The estimated equivalent stresses for SPC are compared to uniaxial creep stresses at equal rupture times, using three alternative models. In-depth analyses are performed on SPC and uniaxial creep data for P92, F92 and 316 L steel tested within an inter-laboratory round robin. The formulation for SPC equivalent creep strain rate in the standard is also assessed.",

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author = "S. Holmstr{\"o}m and Y. Li and P. Dymacek and E. Vacchieri and Jeffs, {S. P.} and Lancaster, {R. J.} and D. Omacht and Z. Kubon and E. Anelli and Joni Rantala and A. Tonti and S. Komazaki and Naveena and M. Bruchhausen and Hurst, {R. C.} and P. H{\"a}hner and M. Richardson and D. Andres",

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Holmström, S, Li, Y, Dymacek, P, Vacchieri, E, Jeffs, SP, Lancaster, RJ, Omacht, D, Kubon, Z, Anelli, E, Rantala, J, Tonti, A, Komazaki, S, Naveena, Bruchhausen, M, Hurst, RC, Hähner, P, Richardson, M & Andres, D 2018, 'Creep strength and minimum strain rate estimation from Small Punch Creep tests', Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, vol. 731, pp. 161-172. https://doi.org/10.1016/j.msea.2018.06.005

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AU - Holmström, S.

AU - Li, Y.

AU - Dymacek, P.

AU - Vacchieri, E.

AU - Jeffs, S. P.

AU - Lancaster, R. J.

AU - Omacht, D.

AU - Kubon, Z.

AU - Anelli, E.

AU - Rantala, Joni

AU - Tonti, A.

AU - Komazaki, S.

AU - Naveena,

AU - Bruchhausen, M.

AU - Hurst, R. C.

AU - Hähner, P.

AU - Richardson, M.

AU - Andres, D.

PY - 2018/7/25

Y1 - 2018/7/25

N2 - A new standard is currently being developed under the auspices of ECISS/TC 101 WG1 for the small punch testing technique for the estimation of both tensile and creep properties. Annex G of the new standard is covering the assessment and evaluation of small punch creep (SPC) data. The main challenge for estimating uniaxial creep properties from SPC data is the force to equivalent stress conversion between SPC and uniaxial creep tests. In this work a range of SPC assessment methodologies, benchmarked for the standard, are compared for verifying the best practice used in the standard. The estimated equivalent stresses for SPC are compared to uniaxial creep stresses at equal rupture times, using three alternative models. In-depth analyses are performed on SPC and uniaxial creep data for P92, F92 and 316 L steel tested within an inter-laboratory round robin. The formulation for SPC equivalent creep strain rate in the standard is also assessed.

AB - A new standard is currently being developed under the auspices of ECISS/TC 101 WG1 for the small punch testing technique for the estimation of both tensile and creep properties. Annex G of the new standard is covering the assessment and evaluation of small punch creep (SPC) data. The main challenge for estimating uniaxial creep properties from SPC data is the force to equivalent stress conversion between SPC and uniaxial creep tests. In this work a range of SPC assessment methodologies, benchmarked for the standard, are compared for verifying the best practice used in the standard. The estimated equivalent stresses for SPC are compared to uniaxial creep stresses at equal rupture times, using three alternative models. In-depth analyses are performed on SPC and uniaxial creep data for P92, F92 and 316 L steel tested within an inter-laboratory round robin. The formulation for SPC equivalent creep strain rate in the standard is also assessed.

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ER -

Creep strength and minimum strain rate estimation from Small Punch Creep tests

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Keywords

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