Relationship between TiB2 agglomerate size and grain refinement effectiveness of Al-Ti-B grain refiner

• Published in: Journal of Japan Institute of Light Metals Vol. 71; no. 9; pp. 409 - 414
• Main Authors: Minagawa, Akihiro, Furuta, Shogo, Omura, Naoki, Murakami, Yuichiro, Tsunekawa, Masanori
• Format: Journal Article
• Language: Japanese; English
• Published: Tokyo The Japan Institute of Light Metals 15.09.2021; Japan Science and Technology Agency
• Subjects: Agglomerates; Agglomeration; Aluminum; Casting defects; Computed tomography; Crystal defects; DC casting; Direct chill casting; Grain boundaries; Grain refinement; grain refiner; Grain size; grain size prediction model; Grain structure; Lager; Mathematical models; Prediction models; Predictions; Size distribution; TiB2 agglomerate; Titanium diboride

In order to reduce the risk of the casting defects, fine grains are required in the aluminum DC casting process. It is commonplace to use the grain refiner as a means of obtaining the desired grain structure. Typical grain refiners are Al-Ti-B system. In this study, TiB2 agglomerates in Al-Ti-B grai...