Characterization of β′ Precipitate Phase in Aged Mg-12Gd-2Y-0.5Sm-0.5Sb-0.5Zr Alloy
The Mg-12Gd-2Y-0.5Sm-0.5Sb-0.5Zr alloy was prepared under flux protection. The morphology and crystal structure of β′ precipitate phases in aged alloy has been studied using transmission electron microscopy and X-ray diffraction. The orientation relationship between β′ precipitate and matrix could existed as [ 010]BαB// [ 00]Bβ′B, (01 0) BαB// (020)Bβ′B and (0001)BαB was coherent with (001)Bβ′B; BαB// Bβ′B, (1 00)BαB// (240)Bβ′B and ( 010)BαB was coherent with (0A_,8EEA0)Bβ′B. The HREM images indicated that the β' precipitates have a long-period ordered structure at the same time.
Jianmin Zeng, Taosen Li, Shaojian Ma, Zhengyi Jiang and Daoguo Yang
K. J. Li et al., "Characterization of β′ Precipitate Phase in Aged Mg-12Gd-2Y-0.5Sm-0.5Sb-0.5Zr Alloy", Advanced Materials Research, Vols. 194-196, pp. 1357-1360, 2011