Effect of Cu Addition on Microstructure and Thermal Analysis of Spheroidal Graphite Cast Iron
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- Mantani Yoshikazu
- National Institute of Technology (KOSEN), Suzuka College
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- Nakano Mahiro
- Mie Prefecture Industrial Research Institute
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- Kondo Yoshihiro
- Mie Prefecture Industrial Research Institute
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- Hio Katsuya
- Mie Prefecture Industrial Research Institute
Bibliographic Information
- Other Title
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- 球状黒鉛鋳鉄のミクロ組織と熱分析曲線に及ぼすCu添加の影響
Abstract
<p> Given that the addition of 1% or less of Cu to spheroidal graphite cast iron significantly affects the matrix structure and mechanical properties, it is thus vital to deepen knowledge on the effects of phenomena occurring in the matrix structure. The purpose of this study was to fabricate seven types of spheroidal graphite cast iron with Cu added up to 0.6%, to investigate the relationship between mechanical properties, phase constitution of spheroidal graphite/ferrite/pearlite, and ferrite phase structure, and to discuss the effect of Cu addition. First, the correlation between the pearlite area ratio and the increase in tensile strength and Brinell hardness with increasing Cu content was clarified. TG-DTA measurements were performed to analyze the matrix structure. It was found that Ar3 decreased with increasing Cu content and only Ar1 was present at 0.6Cu. In addition, using the full width at half maximum (FWHM) of (110) α as an index, the lattice strain increased with the amount of Cu addition. These results suggest that the addition of Cu may promote the slower growth of spheroidal graphite near the Acm line, while the growth of spheroidal graphite proceeds rapidly in the austenite region in the absence or presence of a small amount of Cu.</p>
Journal
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- Journal of Japan Foundry Engineering Society
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Journal of Japan Foundry Engineering Society 95 (11), 593-599, 2023-11-25
Japan Foundry Engineering Society
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Keywords
Details 詳細情報について
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- CRID
- 1390579830882958848
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- ISSN
- 21855374
- 13420429
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- Text Lang
- ja
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- Data Source
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- JaLC
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- Abstract License Flag
- Disallowed