The Enhanced Ability to Withstand Axial Hot Compression of Electropulsing-Assisted Ultrasonic Surface Rolling Process Treated Inconel 718

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Abstract:

The ability to withstand axial hot compression at 700 °C of electropulsing-assisted ultrasonic surface rolling process (EUSRP) treated Inconel 718 was characterized by hot compression tests in this study. Results indicated that EUSRP induced ultra-fine microstructure on the near-surface regions of the sample and the formation of recrystallized ultra-fine grains in the near-surface regions was further promoted during hot compression test. In addition, a large number of nanoγ'' phases were precipitated on the broadened grain boundaries of the near-surface regions. In summary, EUSRP enhanced the ability to withstand axial hot compression of Inconel 718 at 700 °C.

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Periodical:

Solid State Phenomena (Volume 298)

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69-74

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Online since:

October 2019

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© 2019 Trans Tech Publications Ltd. All Rights Reserved

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