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Effect of Cold Working on Creep Rupture Strength of Alloy617

Received: 26 May 2017     Accepted: 8 June 2017     Published: 29 June 2017
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Abstract

The effect of cold working on the creep rupture strength of Alloy617 was investigated. The creep rupture tests were conducted at temperatures of 700 to 800°C, under stresses from 100 to 350 MPa. At high stress conditions, the creep rupture time of the non-pre-strained samples are similar to those of the pre-strained samples. On the other hand, at low stress conditions, the creep rupture time of the pre-strained samples are longer than those of the non-pre-strained samples. The amount of precipitates near the grain boundaries in the pre-strained sample is higher than that in the non-pre-strained sample. Weak regions such as PFZ and recrystallization grains in the non-pre-strained sample are formed in the early stage of creep compared to the pre-strained sample. At low stress conditions, the precipitates near the grain boundaries in the pre-strained sample play an effective role to pin the grain boundaries and they delay the formation of the weak regions resulting in extension to the creep rupture time.

Published in International Journal of Materials Science and Applications (Volume 6, Issue 4)
DOI 10.11648/j.ijmsa.20170604.13
Page(s) 178-189
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2017. Published by Science Publishing Group

Keywords

A-USC, Alloy617, Pre-strain, Cold Working, Creep Strength, Microstructure

References
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Cite This Article
  • APA Style

    Yoshiki Shioda, Kyohei Nomura, Keiji Kubushiro, Yoshinori Murata. (2017). Effect of Cold Working on Creep Rupture Strength of Alloy617. International Journal of Materials Science and Applications, 6(4), 178-189. https://doi.org/10.11648/j.ijmsa.20170604.13

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    ACS Style

    Yoshiki Shioda; Kyohei Nomura; Keiji Kubushiro; Yoshinori Murata. Effect of Cold Working on Creep Rupture Strength of Alloy617. Int. J. Mater. Sci. Appl. 2017, 6(4), 178-189. doi: 10.11648/j.ijmsa.20170604.13

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    AMA Style

    Yoshiki Shioda, Kyohei Nomura, Keiji Kubushiro, Yoshinori Murata. Effect of Cold Working on Creep Rupture Strength of Alloy617. Int J Mater Sci Appl. 2017;6(4):178-189. doi: 10.11648/j.ijmsa.20170604.13

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  • @article{10.11648/j.ijmsa.20170604.13,
      author = {Yoshiki Shioda and Kyohei Nomura and Keiji Kubushiro and Yoshinori Murata},
      title = {Effect of Cold Working on Creep Rupture Strength of Alloy617},
      journal = {International Journal of Materials Science and Applications},
      volume = {6},
      number = {4},
      pages = {178-189},
      doi = {10.11648/j.ijmsa.20170604.13},
      url = {https://doi.org/10.11648/j.ijmsa.20170604.13},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmsa.20170604.13},
      abstract = {The effect of cold working on the creep rupture strength of Alloy617 was investigated. The creep rupture tests were conducted at temperatures of 700 to 800°C, under stresses from 100 to 350 MPa. At high stress conditions, the creep rupture time of the non-pre-strained samples are similar to those of the pre-strained samples. On the other hand, at low stress conditions, the creep rupture time of the pre-strained samples are longer than those of the non-pre-strained samples. The amount of precipitates near the grain boundaries in the pre-strained sample is higher than that in the non-pre-strained sample. Weak regions such as PFZ and recrystallization grains in the non-pre-strained sample are formed in the early stage of creep compared to the pre-strained sample. At low stress conditions, the precipitates near the grain boundaries in the pre-strained sample play an effective role to pin the grain boundaries and they delay the formation of the weak regions resulting in extension to the creep rupture time.},
     year = {2017}
    }
    

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  • TY  - JOUR
    T1  - Effect of Cold Working on Creep Rupture Strength of Alloy617
    AU  - Yoshiki Shioda
    AU  - Kyohei Nomura
    AU  - Keiji Kubushiro
    AU  - Yoshinori Murata
    Y1  - 2017/06/29
    PY  - 2017
    N1  - https://doi.org/10.11648/j.ijmsa.20170604.13
    DO  - 10.11648/j.ijmsa.20170604.13
    T2  - International Journal of Materials Science and Applications
    JF  - International Journal of Materials Science and Applications
    JO  - International Journal of Materials Science and Applications
    SP  - 178
    EP  - 189
    PB  - Science Publishing Group
    SN  - 2327-2643
    UR  - https://doi.org/10.11648/j.ijmsa.20170604.13
    AB  - The effect of cold working on the creep rupture strength of Alloy617 was investigated. The creep rupture tests were conducted at temperatures of 700 to 800°C, under stresses from 100 to 350 MPa. At high stress conditions, the creep rupture time of the non-pre-strained samples are similar to those of the pre-strained samples. On the other hand, at low stress conditions, the creep rupture time of the pre-strained samples are longer than those of the non-pre-strained samples. The amount of precipitates near the grain boundaries in the pre-strained sample is higher than that in the non-pre-strained sample. Weak regions such as PFZ and recrystallization grains in the non-pre-strained sample are formed in the early stage of creep compared to the pre-strained sample. At low stress conditions, the precipitates near the grain boundaries in the pre-strained sample play an effective role to pin the grain boundaries and they delay the formation of the weak regions resulting in extension to the creep rupture time.
    VL  - 6
    IS  - 4
    ER  - 

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Author Information
  • Research Laboratory, Materials Department, IHI Corporation, Yokohama, Japan

  • Research Laboratory, Materials Department, IHI Corporation, Yokohama, Japan

  • Research Laboratory, Materials Department, IHI Corporation, Yokohama, Japan

  • Department of Materials, Physics and Energy Engineering, Nagoya University, Nagoya, Japan

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