Journal article
Grain boundary serration in nickel-based superalloy inconel 600: Generation and effects on mechanical behavior
- Abstract:
- Grain boundary serration in the superalloy Inconel 600 was studied. Two microstructural variants, one with nonserrated and the other with serrated grain boundaries were generated by altering the heat-treatment conditions, while keeping other aspects of the microstructure unchanged. The effect on the creep response between 700 °C and 900 °C was measured, and the different failure modes and accumulated damage were quantified using high-angular resolution electron backscatter diffraction analysis in the scanning electron microscope and also by X-ray computed tomography. It is found that serration plays a more crucial role in the high-temperature/low-stress regime when an intergranular cracking mechanism involving cavitation is operative; here it plays a role in improving both creep life and creep ductility. Any effect of serration is less prevalent at low temperatures where transgranular failure is dominant.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 9.1MB, Terms of use)
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- Publisher copy:
- 10.1007/s11661-018-4671-7
Authors
- Publisher:
- Springer
- Journal:
- Metallurgical and Materials Transactions A More from this journal
- Volume:
- 49
- Issue:
- 9
- Pages:
- 4324–4342
- Publication date:
- 2018-06-01
- DOI:
- EISSN:
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1543-1940
- ISSN:
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1073-5623
- Keywords:
- Pubs id:
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pubs:858809
- UUID:
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uuid:c7dc4b79-ea79-4b6d-9431-e4d9c14ed666
- Local pid:
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pubs:858809
- Source identifiers:
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858809
- Deposit date:
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2018-07-12
Terms of use
- Copyright holder:
- Wilkinson et al
- Copyright date:
- 2018
- Notes:
- © The Author(s) 2018. This article is 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, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
- Licence:
- CC Attribution (CC BY)
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