Characterization of Al-Si coating on press hardening steel (PHS) submitted to a natural weathering test
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2018
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CONGRESSO BRASILEIRO DE ENGENHARIA E CIÊNCIA DOS MATERIAIS, 23.
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Targeting the reduction of stamped sheet metal thicknesses, higher mechanical
properties and better crash performance arise the hot stamping process as viable
alternative. This is achieved by heating up a steel blank to approximately 900 ºC for
the austenitization, soon after it is transferred to the hot stamping press, to be
conformed and cooled, aiming a martensitic microstructure, After that, the finished part
presents a tension strength about 1500 MPa. At the blank moving between furnace
and press, oxidation occurs on the sheet metal surface, and Al-Si coating has been
used as a good surface protection, which works against the oxidation process through
a protection barrier. For corrosion analysis and a behavior evaluation of the coating
subjected to climatic agents, the most trustful way is by means of the utilization of the
natural weathering test, in the present case in an urban environment. It was used
samples of 22MnB5 steel plates after different heat treatment conditions, achieving, in
this way, weathering results based in technical standards obtained by means of light
microscopy techniques.
Como referenciar
OLIVEIRA, B.G.; CUNHA, L.F.; ABBADE, L.; COLOSIO, M.A.; ROSSI, J.L.; COUTO, C.P.; LARA, J.C.; LIMA, V.F. Characterization of Al-Si coating on press hardening steel (PHS) submitted to a natural weathering test. In: CONGRESSO BRASILEIRO DE ENGENHARIA E CIÊNCIA DOS MATERIAIS, 23., 04-08 de novembro, 2018, Foz do Iguaçu, PR. Resumo... p. 4947-4947. Disponível em: http://repositorio.ipen.br/handle/123456789/29561. Acesso em: 14 May 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.