Study of tensile test behavior of austenitic stainless steel type 347 seamless thin-walled tubes in coldworked condition
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2017
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INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE
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Resumo
These austenitic stainless steel type 347 seamless thin-walled tubes are potential candidates to be used in fuel
elements of nuclear power plants (as PWR – Pressurized Water Reactor). So, their metallurgical condition and
mechanical properties, as the tensile strength and yield strength, normally are very restrict in demanding project
and design requirements. Several full size tensile tests at room temperature and high temperature (315ºC) were
performed in these seamless tubes in cold-worked condition. The results of specified tensile and yield strengths
were achieved but the elongation of the tube, in the geometry of the component, could not be measured at high
temperature due to unconventional mode of rupture (helical mode without separation of parts). The average
value of elongation was obtained from stress-strain curves of hot tensile tests and was around 5%.
The results obtained in this research show that this behavior of the full size tensile test samples of thin-walled
tube (wall thickness less than 0.5 mm) in high temperature (315ºC) is due to the combination of the
manufacturing process, the material (crystallographic structure and chemical composition) and the final
geometry of the component. In other words, the strong crystallographic texture of material induced by tube
drawing process in addition with the geometry of the component are responsible for the behavior in hot uniaxial
tensile tests.
Como referenciar
TERUI, CLARICE; LIMA, NELSON B. de. Study of tensile test behavior of austenitic stainless steel type 347 seamless thin-walled tubes in coldworked condition. In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE, October 22-27, 2017, Belo Horizonte, MG. Proceedings... Rio de Janeiro, RJ: Associação Brasileira de Energia Nuclear, 2017. Disponível em: http://repositorio.ipen.br/handle/123456789/28345. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.