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Quantitative Analysis of γ Precipitates in Cyclically Deformed Ni3(Al, Ti) Single Crystals Using Magnetic Technique

Published online by Cambridge University Press:  26 February 2011

Yukichi Umakoshi ,
Hiroyuki Y. Yasuda  and
Toshifumi Yanai
Yukichi Umakoshi
Affiliation:
Department of Materials Science and Engineering, Graduate School of Engineering, Osaka University, 2–1, Yamada-oka, Suita, Osaka 565–0871, Japan
Hiroyuki Y. Yasuda
Affiliation:
Department of Materials Science and Engineering, Graduate School of Engineering, Osaka University, 2–1, Yamada-oka, Suita, Osaka 565–0871, Japan Research Center for Ultra-High Voltage Electron Microscopy, Osaka University, 7–1, Mihogaoka, Ibaraki, Osaka 565–0047, Japan
Toshifumi Yanai
Affiliation:
Department of Materials Science and Engineering, Graduate School of Engineering, Osaka University, 2–1, Yamada-oka, Suita, Osaka 565–0871, Japan
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Abstbact

Ni-18at.%Al-4at.%Ti single crystals containing small γ precipitates in γ′ matrix were prepared by aging at 1073K after solution treatment from γ′ single phase region. The size, shape and volume fraction of the γ precipitates were examined during aging and deformation by means of changes in spontaneous magnetization and coercive force. Cyclic deformation behavior of these crystals was discussed through change in the morphology of γ precipitates using magnetic technique.

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References

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