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

• Type: Chapter or Part of a Book
• Date: 2019

Authors

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

Book

Title: Materials Design and Applications II

Pages: 59-69

ISBN: 978-3-030-02256-3

Electronic ISBN: 978-3-030-02257-0

Indexing

Scopus - 0 Citations

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 11