Subcascade formation ratio in neutron-irradiated stainless steels

T. Yoshiie; Y. Satoh; S. S. Huang; M. Horiki; K. Sato; Q. Xu

doi:10.1088/1742-6596/674/1/012002

Subcascade formation ratio in neutron-irradiated stainless steels

T. Yoshiie, Y. Satoh, S. S. Huang, M. Horiki, K. Sato, Q. Xu

Materials Design Division

Research output: Contribution to journal › Conference article › peer-review

2 Citations (Scopus)

Abstract

High-energy-particle irradiation in metals produces cascade damage. If the particle energy is high enough, a cascade is divided into subcascades. In each subcascade, a vacancy rich area is surrounded by an interstitial area. Vacancy clusters are expected to form directly in the vacancy rich area. In this study, the vacancy cluster formation ratio in subcascades was estimated by positron annihilation lifetime spectroscopy and transmission electron microscopy in commercial stainless steels and their model alloys. The vacancy cluster formation ratio was 1.7x10^-3 and 9.1x10^-5 in austenitic stainless steel and ferritic/martensitic stainless steel, respectively.

Original language	English
Article number	012002
Journal	Journal of Physics: Conference Series
Volume	674
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/674/1/012002
Publication status	Published - 2016 Jan 26
Event	International Workshop on Positron Studies of Defects 2014, PSD 2014 - Kyoto, Japan Duration: 2014 Sep 14 → 2014 Sep 19

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "Subcascade formation ratio in neutron-irradiated stainless steels",

abstract = "High-energy-particle irradiation in metals produces cascade damage. If the particle energy is high enough, a cascade is divided into subcascades. In each subcascade, a vacancy rich area is surrounded by an interstitial area. Vacancy clusters are expected to form directly in the vacancy rich area. In this study, the vacancy cluster formation ratio in subcascades was estimated by positron annihilation lifetime spectroscopy and transmission electron microscopy in commercial stainless steels and their model alloys. The vacancy cluster formation ratio was 1.7x10-3 and 9.1x10-5 in austenitic stainless steel and ferritic/martensitic stainless steel, respectively.",

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T1 - Subcascade formation ratio in neutron-irradiated stainless steels

AU - Yoshiie, T.

AU - Satoh, Y.

AU - Huang, S. S.

AU - Horiki, M.

AU - Sato, K.

AU - Xu, Q.

PY - 2016/1/26

Y1 - 2016/1/26

N2 - High-energy-particle irradiation in metals produces cascade damage. If the particle energy is high enough, a cascade is divided into subcascades. In each subcascade, a vacancy rich area is surrounded by an interstitial area. Vacancy clusters are expected to form directly in the vacancy rich area. In this study, the vacancy cluster formation ratio in subcascades was estimated by positron annihilation lifetime spectroscopy and transmission electron microscopy in commercial stainless steels and their model alloys. The vacancy cluster formation ratio was 1.7x10-3 and 9.1x10-5 in austenitic stainless steel and ferritic/martensitic stainless steel, respectively.

AB - High-energy-particle irradiation in metals produces cascade damage. If the particle energy is high enough, a cascade is divided into subcascades. In each subcascade, a vacancy rich area is surrounded by an interstitial area. Vacancy clusters are expected to form directly in the vacancy rich area. In this study, the vacancy cluster formation ratio in subcascades was estimated by positron annihilation lifetime spectroscopy and transmission electron microscopy in commercial stainless steels and their model alloys. The vacancy cluster formation ratio was 1.7x10-3 and 9.1x10-5 in austenitic stainless steel and ferritic/martensitic stainless steel, respectively.

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