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Hot Ductility Behaviors in the Weld Heat-Affected Zone of Nitrogen-Alloyed Fe-18Cr-10Mn Austenitic Stainless Steels

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Abstract

Hot ductility behaviors in the weld heat-affected zone (HAZ) of nitrogen-alloyed Fe-18Cr-10Mn austenitic stainless steels with different nitrogen contents were evaluated through hot tension tests using Gleeble simulator. The results of Gleeble simulations indicated that hot ductility in the HAZs deteriorated due to the formation of δ-ferrite and intergranular Cr2N particles. In addition, the amount of hot ductility degradation was strongly affected by the fraction of δ-ferrite.

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This research was supported by a grant from the Fundamental R&D Program for Core Technology of Materials funded by the Ministry of Knowledge Economy, Republic of Korea.

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Authors and Affiliations

  1. Metallic Materials Division, Ferrous Alloy Department, Korea Institute of Materials Science, Changwon, Gyeongnam, 642-831, Republic of Korea

    Joonoh Moon (Senior Researcher) & Tae-Ho Lee (Principal Researcher)

  2. Department of Materials Science and Engineering, Changwon National University, Changwon, Gyeongnam, 641-773, Republic of Korea

    Hyun-Uk Hong (Professor)

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  1. Joonoh Moon
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  2. Tae-Ho Lee
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  3. Hyun-Uk Hong
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Correspondence to Joonoh Moon.

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Manuscript submitted September 14, 2014.

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Moon, J., Lee, TH. & Hong, HU. Hot Ductility Behaviors in the Weld Heat-Affected Zone of Nitrogen-Alloyed Fe-18Cr-10Mn Austenitic Stainless Steels. Metall Mater Trans A 46, 1437–1442 (2015). https://doi.org/10.1007/s11661-015-2771-1

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  • DOI: https://doi.org/10.1007/s11661-015-2771-1

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