Inverse methodology for estimating the heat transfer coefficient in a duplex stainless steel casting

• Tipo: Capítulo ou Parte de Livro
• Data: 2019

Autores

Ricardo O. Sousa (Autor) FEUP; Imre Felde (Autor) Outra; Paulo J. Ferreira (Autor) Outra; Augusto Moita Deus (Autor) Outra; Laura Ribeiro (Autor) FEUP

Livro

Título: Materials Design and Applications II

Páginas: 59-69

ISBN: 978-3-030-02256-3

ISBN Eletrónico: 978-3-030-02257-0

Indexação

Scopus - 0 Citações

Outras Informações

ID Authenticus: P-00Q-EV9

DOI: 10.1007/978-3-030-02257-0_5

Abstract (EN): In sand casting of metallic alloys, the cooling rate is a key parameter that affects the microstructure and the appearance of defects and residual stresses in the end cast components. In this work, a numerical model was developed to simulate the cooling of a duplex stainless steel casting on a furan-bonded sand mold. The heat transfer coefficient (HTC) as a function of temperature was determined by an inverse method. A good agreement between experimental and numerical cooling curves was achieved, showing the importance of estimating HTC as a function of temperature. On the basis of these results, it is possible to calculate thermal residual stresses and model the microstructure of duplex stainless steel castings with complex geometries. © Springer Nature Switzerland AG 2019.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 11