Kang, Suk-Won Kim, Ki-Bae Lee, Dock-Young Mun, Jung-Hwa Yoon, Eui-Pak 2024-01-21T03:42:54Z 2024-01-21T03:42:54Z 2021-09-02 2006-01 0255-5476 https://pubs.kist.re.kr/handle/201004/135851 The morphological evolution and size of primary solid phase during the isothermal holding at a different holding temperature in semi-solid region were investigated to examine the globularization and coarsening behavior of primary solid phase in semi-solid slurry. The semi-solid slurry of Al alloy was produced in a precisely controlled slurry maker with a slurry cup. The size and roundness of primary solid phase in the quenched slurry after a given isothermal holding time at a different holding temperature in semi-solid region was observed and measured. The morphology of the primary solid phase was considered to be largely affected on the initial microstructure of the semi-solid slurry produced during continuous cooling stage. The size of the primary solid phase was decreased with increasing holding temperature, and the primary solid phase was coarsened with increasing holding time. The roundness degree of the primary solid phase of the quenched slurry after holding at 580 degrees C was approximately 1.6 at a holding time of 1min. and reduced to 1.2 during the isothermal holding for 60min. English TRANS TECH PUBLICATIONS LTD GRAIN-REFINEMENT ALLOY AL Morphological evolution of primary solid phase in semi-solid slurry during the isothermal holding Article 10.4028/www.scientific.net/MSF.510-511.394 1 ECO-MATERIALS PROCESSING & DESIGN VII, v.510-511, pp.394 - 397 ECO-MATERIALS PROCESSING & DESIGN VII 510-511 394 397 scie scopus 000237176000099 2-s2.0-35748930898 Engineering, Manufacturing Materials Science, Multidisciplinary Engineering Materials Science Article; Proceedings Paper GRAIN-REFINEMENT ALLOY AL semi-solid slurry isothermal holding coarsening globularization Al alloy