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
書誌事項
- タイトル別名
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- Effect of Cu Addition on Microstructure and Thermal Analysis of Spheroidal Graphite Cast Iron
抄録
<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>
収録刊行物
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- 鋳造工学
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鋳造工学 95 (11), 593-599, 2023-11-25
公益社団法人 日本鋳造工学会
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キーワード
詳細情報 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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- 本文言語コード
- ja
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- データソース種別
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- JaLC
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- 抄録ライセンスフラグ
- 使用不可