Microstructural evolution of Alloy 718 at high helium and hydrogen generation rates during irradiation with 600-800 MeV protons

B. H. Sencer; G. M. Bond; F. A. Garner; M. L. Hamilton; B. M. Oliver; L. E. Thomas; S. A. Maloy; W. F. Sommer; M. R. James; P. D. Ferguson

doi:10.1016/S0022-3115(00)00308-1

Microstructural evolution of Alloy 718 at high helium and hydrogen generation rates during irradiation with 600-800 MeV protons

B. H. Sencer, G. M. Bond, F. A. Garner, M. L. Hamilton, B. M. Oliver, L. E. Thomas, S. A. Maloy, W. F. Sommer, M. R. James, P. D. Ferguson

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38 Scopus citations

Abstract

When precipitation hardened Alloy 718 is irradiated with high-energy protons (600-800 MeV) and spallation neutrons at temperatures below approximately 60 °C, it quickly hardens and loses almost all uniform elongation. It later softens somewhat at higher exposures but does not regain any elongation. This behavior is explained in terms of the evolution of Frank loop formation, disordering and eventual dissolution of the γ′ and γ″ strengthening phases, and the steady accumulation of very large levels of helium and hydrogen. These gases must be dispersed on a very fine scale in the matrix since no cavities could be found.

Original language	English
Pages (from-to)	324-328
Number of pages	5
Journal	Journal of Nuclear Materials
Volume	283-287
Issue number	PART I
DOIs	https://doi.org/10.1016/S0022-3115(00)00308-1
State	Published - Dec 2000
Externally published	Yes

Funding

This work was supported by the Accelerator Production of Tritium Project and the Office of Fusion Energy Sciences, US Department of Energy under Contract DE-AC06-76RLO 1830.

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10.1016/S0022-3115(00)00308-1

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Sencer, B. H., Bond, G. M., Garner, F. A., Hamilton, M. L., Oliver, B. M., Thomas, L. E., Maloy, S. A., Sommer, W. F., James, M. R., & Ferguson, P. D. (2000). Microstructural evolution of Alloy 718 at high helium and hydrogen generation rates during irradiation with 600-800 MeV protons. Journal of Nuclear Materials, 283-287(PART I), 324-328. https://doi.org/10.1016/S0022-3115(00)00308-1

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title = "Microstructural evolution of Alloy 718 at high helium and hydrogen generation rates during irradiation with 600-800 MeV protons",

abstract = "When precipitation hardened Alloy 718 is irradiated with high-energy protons (600-800 MeV) and spallation neutrons at temperatures below approximately 60 °C, it quickly hardens and loses almost all uniform elongation. It later softens somewhat at higher exposures but does not regain any elongation. This behavior is explained in terms of the evolution of Frank loop formation, disordering and eventual dissolution of the γ′ and γ″ strengthening phases, and the steady accumulation of very large levels of helium and hydrogen. These gases must be dispersed on a very fine scale in the matrix since no cavities could be found.",

author = "Sencer, \{B. H.\} and Bond, \{G. M.\} and Garner, \{F. A.\} and Hamilton, \{M. L.\} and Oliver, \{B. M.\} and Thomas, \{L. E.\} and Maloy, \{S. A.\} and Sommer, \{W. F.\} and James, \{M. R.\} and Ferguson, \{P. D.\}",

year = "2000",

month = dec,

doi = "10.1016/S0022-3115(00)00308-1",

language = "English",

volume = "283-287",

pages = "324--328",

journal = "Journal of Nuclear Materials",

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publisher = "Elsevier",

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}

Sencer, BH, Bond, GM, Garner, FA, Hamilton, ML, Oliver, BM, Thomas, LE, Maloy, SA, Sommer, WF, James, MR & Ferguson, PD 2000, 'Microstructural evolution of Alloy 718 at high helium and hydrogen generation rates during irradiation with 600-800 MeV protons', Journal of Nuclear Materials, vol. 283-287, no. PART I, pp. 324-328. https://doi.org/10.1016/S0022-3115(00)00308-1

TY - JOUR

T1 - Microstructural evolution of Alloy 718 at high helium and hydrogen generation rates during irradiation with 600-800 MeV protons

AU - Sencer, B. H.

AU - Bond, G. M.

AU - Garner, F. A.

AU - Hamilton, M. L.

AU - Oliver, B. M.

AU - Thomas, L. E.

AU - Maloy, S. A.

AU - Sommer, W. F.

AU - James, M. R.

AU - Ferguson, P. D.

PY - 2000/12

Y1 - 2000/12

N2 - When precipitation hardened Alloy 718 is irradiated with high-energy protons (600-800 MeV) and spallation neutrons at temperatures below approximately 60 °C, it quickly hardens and loses almost all uniform elongation. It later softens somewhat at higher exposures but does not regain any elongation. This behavior is explained in terms of the evolution of Frank loop formation, disordering and eventual dissolution of the γ′ and γ″ strengthening phases, and the steady accumulation of very large levels of helium and hydrogen. These gases must be dispersed on a very fine scale in the matrix since no cavities could be found.

AB - When precipitation hardened Alloy 718 is irradiated with high-energy protons (600-800 MeV) and spallation neutrons at temperatures below approximately 60 °C, it quickly hardens and loses almost all uniform elongation. It later softens somewhat at higher exposures but does not regain any elongation. This behavior is explained in terms of the evolution of Frank loop formation, disordering and eventual dissolution of the γ′ and γ″ strengthening phases, and the steady accumulation of very large levels of helium and hydrogen. These gases must be dispersed on a very fine scale in the matrix since no cavities could be found.

UR - https://www.scopus.com/pages/publications/0034543180

U2 - 10.1016/S0022-3115(00)00308-1

DO - 10.1016/S0022-3115(00)00308-1

M3 - Article

AN - SCOPUS:0034543180

SN - 0022-3115

VL - 283-287

SP - 324

EP - 328

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

IS - PART I

ER -

Microstructural evolution of Alloy 718 at high helium and hydrogen generation rates during irradiation with 600-800 MeV protons

Abstract

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