Stability of nanoclusters in 14YWT oxide dispersion strengthened steel under heavy ion-irradiation by atom probe tomography

被引：42

作者：

He, Jianchao ^{[1
,2
]}

Wan, Farong ^{[1
]}

Sridharan, Kumar ^{[2
]}

Allen, Todd R. ^{[2
,3
]}

Certain, A. ^{[4
]}

Shutthanandan, V. ^{[4
]}

Wu, Y. Q. ^{[5
,6
]}

机构：

[1] Univ Sci & Technol Beijing, Sch bf Mat Sci & Engn, Beijing 100083, Peoples R China

[2] Univ Wisconsin, Dept Engn Phys, Madison, WI 53706 USA

[3] Idaho Natl Lab, Idaho Falls, ID USA

[4] Pacific NW Natl Lab, Richland, WA 99352 USA

[5] Boise State Univ, Dept Mat Sci & Engn, Boise, ID 83725 USA

[6] Ctr Adv Energy Studies, Idaho Falls, ID USA

来源：

JOURNAL OF NUCLEAR MATERIALS | 2014年 / 455卷 / 1-3期

关键词：

FERRITIC ALLOYS; PHASE-STABILITY; ODS STEEL; ENERGY; DPA;

D O I：

10.1016/j.jnucmat.2014.03.024

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

14YWT oxide dispersion strengthened (ODS) ferritic steel was irradiated with of 5 MeV Ni2+ ions, at 300 degrees C, 450 C, and 600 degrees C to a damage level of 100 dpa. The stability of Ti-Y-O nanoclusters was investigated by applying atom probe tomography (APT) in voltage mode, of the samples before and after irradiations. The average size and number density of the nanoclusters was determined using the maximum separation method. These techniques allowed for the imaging of nanoclusters to sizes well below the resolution limit of conventional transmission electron microscopy techniques. The most significant changes were observed for samples irradiated at 300 degrees C where the size (average Guinier radius) and number density of nanoclusters were observed to decrease from 1.1 nm to 0.8 nm and 12 x 10(23) to 3.6 x 10(23), respectively. In this study, the nanoclusters are more stable at higher temperature. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：41 / 45

页数：5

共 31 条

[1] Microstructural changes of neutron irradiated ODS ferritic and martensitic steels [J].

Akasaka, N ;

Yamashita, S ;

Yoshitake, T ;

Ukai, S ;

Kimura, A .

JOURNAL OF NUCLEAR MATERIALS, 2004, 329 :1053-1056

[2] On the role of alloy composition and processing parameters in nanocluster formation and dispersion strengthening in nanostuctured ferritic alloys [J].

Alinger, M. J. ;

Odette, G. R. ;

Hoelzer, D. T. .

ACTA MATERIALIA, 2009, 57 (02) :392-406

[3] Radiation response of a 9 chromium oxide dispersion strengthened steel to heavy ion irradiation [J].

Allen, T. R. ;

Gan, J. ;

Cole, J. I. ;

Miller, M. K. ;

Busby, J. T. ;

Shutthanandan, S. ;

Thevuthasan, S. .

JOURNAL OF NUCLEAR MATERIALS, 2008, 375 (01) :26-37

[4] Response of nanoclusters in a 9Cr ODS steel to 1 dpa, 525 °C proton irradiation [J].

Certain, A. G. ;

Field, K. G. ;

Allen, T. R. ;

Miller, M. K. ;

Bentley, J. ;

Busby, J. T. .

JOURNAL OF NUCLEAR MATERIALS, 2010, 407 (01) :2-9

[5] Stability of Nanoparticles in an Oxide Dispersion Strengthened Alloy [J].

de Castro, V. ;

Lozano-Perez, S. ;

Jenkins, M. L. .

ELECTRON MICROSCOPY AND ANALYSIS GROUP CONFERENCE 2009 (EMAG 2009), 2010, 241

[6]

Gault B., 2012, Atom Probe Microscopy, V160

[7] Influence of particle dispersions on the high-temperature strength of ferritic alloys [J].

Hoelzer, D. T. ;

Bentley, J. ;

Sokolov, M. A. ;

Miller, M. K. ;

Odette, G. R. ;

Alinger, M. J. .

JOURNAL OF NUCLEAR MATERIALS, 2007, 367 (SPEC. ISS.) :166-172

[8] Formation mechanism and the role of nanoparticles in Fe-Cr ODS steels developed for radiation tolerance [J].

Hsiung, Luke L. ;

Fluss, Michael J. ;

Tumey, Scott J. ;

Choi, B. William ;

Serruys, Yves ;

Willaime, Francois ;

Kimura, Akihiko .

PHYSICAL REVIEW B, 2010, 82 (18)

[9] Structure of oxide nanoparticles in Fe-16Cr MA/ODS ferritic steel [J].

Hsiung, Luke L. ;

Fluss, Michael J. ;

Kimura, Akihiko .

MATERIALS LETTERS, 2010, 64 (16) :1782-1785

[10] A sensitivity analysis of the maximum separation method for the characterisation of solute clusters [J].

Hyde, J. M. ;

Marquis, E. A. ;

Wilford, K. B. ;

Williams, T. J. .

ULTRAMICROSCOPY, 2011, 111 (06) :440-447

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