Actions for Effect of Nickel on Irradiation Hardening and Microstructure Evolution of Proton Irradiated Fe-Cu Alloys

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Effect of Nickel on Irradiation Hardening and Microstructure Evolution of Proton Irradiated Fe-Cu Alloys / H. Shibamoto, T. Kitao, H. Matsui, M. Hasegawa, S. Yamaguchi, A. Kimura

Conference Author
Effects of Radiation on Materials: 20th International Symposium (20th : 2000 : Williamsburg, Virginia)
Physical Description
1 online resource (12 pages) : illustrations, figures, tables
Additional Creators
Yamaguchi, S., Hasegawa, M., Kimura, A., Kitao, T., Matsui, H., Shibamoto, H., American Society for Testing and Materials, and ASTM International
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Summary
Hardness measurements and microstructure examinations of Fe(-C)-Cu-Ni model alloys were performed following 1 MeV proton irradiation below 80¿̐ưC. Microstructural examinations by transmission electron microscope (TEM) were carried out by means of a cross section method. A band of damage structures, parallel to the irradiated surface, was observed at a depth of 6.5 ? m in agreement with calculation based on the TRIM code. TEM observation revealed that the band consisted of high density of small black spots, which were considered to be interstitial-type dislocation loops. The amount of irradiation hardening increased with increase in copper concentration. An addition of 0.6wt%Ni to Fe-Cu alloys further increased the hardening, although the effect was reduced with increasing copper concentration. Irradiation hardening of pure iron was also significantly increased by the addition of nickel. The size and number density of the spot-like structures in Fe-Cu alloys decreased and increased, respectively, with addition of nickel. Three recovery stages were found in Fe-Cu-Ni alloys during post-irradiation isochronal annealing to 675¿̐ưC: the stages are at around 150¿̐ưC, 400¿̐ưC and 600¿̐ưC. The first stage was only observed in nickel-containing alloys, while the third stage was only observed in copper-containing alloys. After annealing to 375¿̐ưC, the density of spot-like structures decreased in Fe-Cu-Ni alloy but increased in Fe-Cu alloy, while for both the size of spots increased.
Dates of Publication and/or Sequential Designation
Volume 2001, Issue 1405 (January 2001)
Subject(s)
Other Subject(s)
ISBN
9780803154544 (e-ISBN)
9780803128781
0803128789
Digital File Characteristics
text file PDF
Bibliography Note
Includes bibliographical references 17.
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Also available online via the World Wide Web. Tables of contents and abstracts freely available; full-text articles available by subscription.
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Reproduction Note
Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 2001. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.
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Mode of access: World Wide Web.
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ASTM International PDF Purchase price USD25.
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