Influence of various Yb additions on microstructures of a casting Mg−8Gd−1.2Zn−0.5Zr alloy

• Published in: Journal of alloys and compounds Vol. 789; pp. 720 - 729
• Main Authors: Li, Baishun, Meng, Fanzhi, Lv, Shuhui, Guan, Kai, Yang, Qiang, Qin, Pengfei, Qiu, Xin, Tian, Zheng, Zhang, Dongdong, Meng, Jian
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 15.06.2019; Elsevier BV
• Subjects: Alloys; Eutectic alloys; Eutectics; Gadolinium; Grain boundaries; Intermetallic phase; Intermetallic phases; Magnesium alloy; Orientation relationships; Permanent mold casting; Permanent molds; Transmission electron microscopy (TEM); Yb addition; Ytterbium; Yb addition; Intermetallic phase; Transmission electron microscopy (TEM); Magnesium alloy

Microstructures of the Mg−8Gd−xYb−1.2Zn−0.5Zr (x = 0, 1, 2, 3, and 4, in wt.%) alloys prepared by gravity permanent mold casting were investigated. The results indicate that the components of intermetallic phases are closely depended on the content of Yb additions. Firstly, the eutectic phase in the...