Tomographical Study of the Effect of Graphite on Properties of Cast Iron. Issue 8 (26th April 2018)

• Record Type: Journal Article
• Authors: Liu, Yangzhen; Xing, Jiandong; Li, Yefei; Wang, Shaogang; Tao, Dong
• Is Part Of: Steel research international. Volume 89:Issue 8(2018)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2018-04-26
• Subjects: compacted graphite cast iron -- graphite morphology -- tensile strength -- thermal conductivity -- X–ray tomography; Steel -- Periodicals; Steel -- Metallurgy -- Periodicals; 669.142
• DOI: 10.1002/srin.201800086
• Languages: English
• ISSNs: 1611-3683

Abstract

Abstract : Two specimens of cast iron, namely A1 and A2, the size, shape, and interconnectivity of graphite are analyzed using X–ray tomography. The results reveal that the morphology of vermicular graphite is a coral–tree–like. The interconnectivity of A2 specimen is better than A1 specimen. The results also demonstrate that the thermal conductivity of A2 specimen is larger than A1 specimen, whereas the tensile strength of A2 specimen is smaller than A1 specimen. With an increase in temperature, the thermal conductivity of both A1 and A2 specimen increases initially, and then decreases, whereas the tensile strength decreases slightly at first, and then decreases rapidly. Finally, the fracture surfaces of both A1 and A2 specimen are studied. Abstract : The size, shape, and interconnectivity of 3D graphite are analyzed using X–ray tomography in this study. The influence of graphite content and size on the thermal conductivity, tensile properties, and fracture behaviors of compacted graphite cast iron is also estimated. This study is very important for developing new ingot molds and brake drums.