Category: Transient Plane Source
Author(s): Jarkko Laine, Juhani Orkas, Kaisu Soivio, Kalle Jalava
Keywords: Austempering, Cast Iron, Compacted graphite, Lamellar graphite, Spheriodal graphite, Thermal Conductivity, Transient plane source (TPS) method
Abstract: Cast irons are materials with complex internal structures, exhibiting multiple changes in physical and mechanical properties due to graphite in their microstructures. In this study, various amounts of silicon alloys and ferrite were added to samples of lamellar, compacted, and spheroidal graphite cast irons to determine how this would affect their thermal conductivities. A thermal analyzer was used to measure thermal conductivities of the composites with the transient plane source (TPS) method from room temperature to 400°C. Results showed that the effects of austempering on conductivity were lower for grey and compacted graphite iron than for spheroidal graphite irons.
Reference: Materials Science and Technology, Minerals and Mining (2017) 1-7
DOI: 10.1080/02670836.2017.1389117