Influence of Temperature on Stress Distribution in Bainitic Steels - Application to 16 MND5-A508 Pressure Vessel Steel

Razane Ouahab; Raphaël Pesci; Sophie Berveiller; Etienne  Patoor

doi:10.4028/www.scientific.net/MSF.681.243

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HomeMaterials Science ForumMaterials Science Forum Vol. 681Influence of Temperature on Stress Distribution in...

Influence of Temperature on Stress Distribution in Bainitic Steels - Application to 16 MND5-A508 Pressure Vessel Steel

Abstract:

In this study, the internal stress evolution of the ferrite phase of 16MND5-A508 has been determined using X-Ray Diffraction (XRD). The results of in situ tests combined with XRD analyses and performed at different temperatures (-150°C and 22°C) exhibit a difference of about 200MPa between the macroscopic stress and the ferrite one. The stress state in the cementite is determined by a mixture law; it reaches very high values up to 9000MPa. These results highlight the need to analyze the stress directly in the cementite phase by using appropriate tools, since its volume fraction does not allow it using XRD.

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Periodical:

Materials Science Forum (Volume 681)

Pages:

243-248

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.681.243

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Online since:

March 2011

Authors:

Razane Ouahab, Raphaël Pesci, Sophie Berveiller, Etienne Patoor

Keywords:

In Situ Test, 16MND5 Steel, Bainite, Phase Stress Distribution, X-Ray Diffraction (XRD)

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