Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

The Effect of Boron (B) on the Microstructure and Graphite Morphology of Spheroidal Graphite Cast Iron

Version 1 : Received: 8 May 2023 / Approved: 9 May 2023 / Online: 9 May 2023 (08:46:37 CEST)

A peer-reviewed article of this Preprint also exists.

Ha, J.-S.; Hong, J.-W.; Kim, J.-W.; Han, S.-B.; Choi, C.-Y.; Song, H.-J.; Jang, J.-S.; Kim, D.-Y.; Ko, D.-C.; Yi, S.-H.; Cho, Y.-J. The Effect of Boron (B) and Copper (Cu) on the Microstructure and Graphite Morphology of Spheroidal Graphite Cast Iron. Materials 2023, 16, 4225. Ha, J.-S.; Hong, J.-W.; Kim, J.-W.; Han, S.-B.; Choi, C.-Y.; Song, H.-J.; Jang, J.-S.; Kim, D.-Y.; Ko, D.-C.; Yi, S.-H.; Cho, Y.-J. The Effect of Boron (B) and Copper (Cu) on the Microstructure and Graphite Morphology of Spheroidal Graphite Cast Iron. Materials 2023, 16, 4225.

Abstract

This study investigated the impact of boron and copper on the microstructure and mechanical properties of Spheroidal graphite Cast Iron (SCI). The addition of boron increased the ferrite content, while copper increased the stability of pearlite. The interaction between boron and copper significantly increased the ferrite content. Differential Scanning Calorimetry (DSC) revealed that boron decreased the enthalpy change of the α + Fe3C -> γ transformation and increased the enthalpy change of the α -> γ transformation. The addition of boron and copper reduced the tensile and yield strength but increased elongation and impact energy. The findings provide valuable insights into the effect of boron and copper on SCI, facilitating the design and development of high-performance SCI materials.

Keywords

Spheroidal graphite Cast Iron; Boron; Pearlite; Mechanical properties; Microstructure

Subject

Chemistry and Materials Science, Metals, Alloys and Metallurgy

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