Hydrogen and deuterium profiling at the surface of zirconium alloys. I. The effects of surface preparation

A. Stern; D. Khatamian; T. Laursen; G. C. Weatherly; J. M. Perz

doi:10.1016/0022-3115(87)90277-7

Hydrogen and deuterium profiling at the surface of zirconium alloys. I. The effects of surface preparation

A. Stern, D. Khatamian, T. Laursen, G. C. Weatherly, J. M. Perz

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Abstract

The H(¹⁵N, αγ)¹² C and D(³He, p)α reactions have been used to measure hydrogen and deuterium profiles in Zr-2.5 wt% Nb alloys loaded to contain 40-150 ppm by weight H or 56-108 ppm D. Excellent agreement is found between the results obtained by these two different techniques. Large surface H(D) peaks are found after fine metallographic sample preparation techniques. The peaks may be substantially reduced by using a fine machining operation (as the last step in surface preparation) or may be totally removed by vacuum annealing. The surface peaks appear to be associated with hydride/deuteride particles embedded in the surface layers during metallographic polishing.

Original language	English
Pages (from-to)	35-42
Number of pages	8
Journal	Journal of Nuclear Materials
Volume	144
Issue number	1-2
DOIs	https://doi.org/10.1016/0022-3115(87)90277-7
State	Published - 1 Jan 1987
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics
General Materials Science
Nuclear Energy and Engineering

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10.1016/0022-3115(87)90277-7

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title = "Hydrogen and deuterium profiling at the surface of zirconium alloys. I. The effects of surface preparation",

abstract = "The H(15N, αγ)12 C and D(3He, p)α reactions have been used to measure hydrogen and deuterium profiles in Zr-2.5 wt% Nb alloys loaded to contain 40-150 ppm by weight H or 56-108 ppm D. Excellent agreement is found between the results obtained by these two different techniques. Large surface H(D) peaks are found after fine metallographic sample preparation techniques. The peaks may be substantially reduced by using a fine machining operation (as the last step in surface preparation) or may be totally removed by vacuum annealing. The surface peaks appear to be associated with hydride/deuteride particles embedded in the surface layers during metallographic polishing.",

author = "A. Stern and D. Khatamian and T. Laursen and Weatherly, {G. C.} and Perz, {J. M.}",

note = "Funding Information: The authors are grateful to NSERC (Canada) for their support of this work and to Ontario Hydro for supplying the hydrided and deuterided samples. The D analysis reported in table 1 was performed at the Chalk River Nuclear Laboratories of AECL (Canada}.",

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AU - Stern, A.

AU - Khatamian, D.

AU - Laursen, T.

AU - Weatherly, G. C.

AU - Perz, J. M.

N1 - Funding Information: The authors are grateful to NSERC (Canada) for their support of this work and to Ontario Hydro for supplying the hydrided and deuterided samples. The D analysis reported in table 1 was performed at the Chalk River Nuclear Laboratories of AECL (Canada}.

PY - 1987/1/1

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N2 - The H(15N, αγ)12 C and D(3He, p)α reactions have been used to measure hydrogen and deuterium profiles in Zr-2.5 wt% Nb alloys loaded to contain 40-150 ppm by weight H or 56-108 ppm D. Excellent agreement is found between the results obtained by these two different techniques. Large surface H(D) peaks are found after fine metallographic sample preparation techniques. The peaks may be substantially reduced by using a fine machining operation (as the last step in surface preparation) or may be totally removed by vacuum annealing. The surface peaks appear to be associated with hydride/deuteride particles embedded in the surface layers during metallographic polishing.

AB - The H(15N, αγ)12 C and D(3He, p)α reactions have been used to measure hydrogen and deuterium profiles in Zr-2.5 wt% Nb alloys loaded to contain 40-150 ppm by weight H or 56-108 ppm D. Excellent agreement is found between the results obtained by these two different techniques. Large surface H(D) peaks are found after fine metallographic sample preparation techniques. The peaks may be substantially reduced by using a fine machining operation (as the last step in surface preparation) or may be totally removed by vacuum annealing. The surface peaks appear to be associated with hydride/deuteride particles embedded in the surface layers during metallographic polishing.

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Hydrogen and deuterium profiling at the surface of zirconium alloys. I. The effects of surface preparation

Abstract

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