1 0 0 0 X線イメージングによる鋳鉄の凝固過程の直接観察
- 著者
- 杉山 明 安田 秀幸 柳楽 知也 吉矢 真人 上杉 健太朗 梅谷 啓二 大中 逸雄
- 出版者
- 公益社団法人 日本鋳造工学会
- 雑誌
- 鋳造工学 = Journal of Japan Foundry Engineering Society (ISSN:13420429)
- 巻号頁・発行日
- vol.83, no.3, pp.131-136, 2011-03-25
- 参考文献数
- 11
- 被引用文献数
- 1
It is well known that controlling the graphite shape in cast iron is a critical issue to achieve appropriate properties. It is of interest to know how the microstructure in cast iron evolves during solidification. So far, time-evolution of the microstructure has not been observed in-situ. This paper presents the in-situ observation results of cast iron solidification using X-ray imaging of synchrotron radiation. Transmission X-ray images with a spatial resolution of as small as 5<i>μ</i>m were obtained by an X-ray detector SATICON in an imaging beam line 20B2 at SPring-8. A 10 × 10 × 0.1mm specimen was melted and solidified in a mold made of Al<sub>2</sub>O<sub>3</sub> placed in a vacuum chamber. The observation showed that the solidification started with austenite dendrites, after which the eutectic structure was formed. Graphite clusters of about 100<i>μ</i>m in diameter were formed in the remaining liquid surrounded by the eutectic structure at a cooling rate of less than 10K/min. At a cooling rate of 10K/min, the primary dendrite and the eutectic grains moved up and down, respectively, due to the bouncy force.
1 0 0 0 OA 片状黒鉛鋳鉄の凝固組織とその形成過程
- 著者
- 杉山 明 前川 裕貴 後藤 耕太 山根 功士朗 安田 秀幸 吉矢 真人 柳楽 知也 牛込 智章 佐藤 彰洋 梅谷 啓二 上杉 健太朗
- 出版者
- 公益社団法人 日本鋳造工学会
- 雑誌
- 鋳造工学 全国講演大会講演概要集 第161回全国講演大会講演概要集 (ISSN:18805388)
- 巻号頁・発行日
- pp.13, 2012 (Released:2017-03-01)
