Cast iron selection based on design requirements of thermomechanically loaded applications and its' foundry challenges

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openAccess

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A4 Artikkeli konferenssijulkaisussa

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2021-11-09

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en

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Conference proceedings of the 12th International Symposium on the Science and Processing of Cast Iron

Abstract

Cast irons envelop a substantial property window both in mechanical and thermal properties. Typically, in standards, grades are defined through mechanical properties, leaving a lot of variables to be chosen and adjusted from a foundry’s perspective. With similar strength levels, cast irons can contain a wide range of microstructural compositions, types and volume of graphite. These have clear influence on properties other than tensile strength. For high-performance materials like cast irons, the selection of grades should be based more on properties required by present-day engineering design needs and procedures. This work explores material selection from a thermomechanical end-use perspective, taking a view on microstructural composition, alloying levels and other factors traditionally not requested by the end-user side. Naturally, such an approach brings certain challenges and limitations with it into a foundry process. This work views the proposed approach from the foundry viewpoint and discusses actions that could be done to make it into reality.

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Keywords

ductile iron, thermal properties, mechanical properties, material selection, foundry process

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Citation

Jalava, K, Mourujärvi, A, Laine, J & Orkas, J 2021, Cast iron selection based on design requirements of thermomechanically loaded applications and its' foundry challenges . in Conference proceedings of the 12th International Symposium on the Science and Processing of Cast Iron . Muroran Institute of Technology, Muroran, Japan, International Symposium on the Science and Processing of Cast Iron, Muroran, Japan, 09/11/2021 .