Study on closed-die forging in stainless steel as standard ASTM F138 in grain size function
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2020
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Engineering Design Applications II: Structures, Materials and Processes
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Resumo
Forging is a bulk deformation process in metal working commonly
employed in the manufacture of metallic materials prostheses. Depending on the
compressive loads applied to the material, structures (grain sizes) are formed which
increase its strength. By forging an ASTM F138 stainless steel, the heating of material
in a suitable temperature is of fundamental importance to be formed without the
presence of folds arising from the process and as a result we can obtain a proper
microstructure. This work aims to define the accurate temperature in relation to the
strain rate applied in the hot die forging process. Besides, it is used a closed-die forging
in which cavity has different thickness that stimulates the profile of an orthopedic
plate. Four ranges of temperature used in the process vary between 1000 and 1200 °C,
with a strain rate ranging from 400 to 600 s−1.Results demonstrate that there is a transitional
temperature close to 1050 °C, where temperatures of 1000–1040 °C provide satisfactory grain size and temperatures of 1100 and 1200 °C, showed limitations in
grain size, greater than those recommended by ASTM F 621.
Como referenciar
SANTOS, G.A. dos; FIGUEIREDO, W.; SCHMITT, Y.P.; NASCIMENTO, M.S.; MIRANDA, F.; BATALHA, G.F.; COUTO, A.A. Study on closed-die forging in stainless steel as standard ASTM F138 in grain size function. In: ÖCHSNER, ANDREAS (ed.); ALTENBACH, HOLM (ed.). Engineering Design Applications II: Structures, Materials and Processes. Cham, Switzerland: Springer Nature Switzerland, 2020. p. 133-153. (Advanced Structured Materials, 113). DOI: 10.1007/978-3-030-20801-1_10. Disponível em: http://repositorio.ipen.br/handle/123456789/31326. Acesso em: 18 Apr 2024.
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.