FCC phase transformation of Zr alloy during air cooling and aging
2021; Elsevier BV; Volume: 551; Linguagem: Inglês
10.1016/j.jnucmat.2021.152989
ISSN1873-4820
AutoresBoran Tao, Risheng Qiu, Yushun Liu, Xinu Tan, Qing Liu,
Tópico(s)High Temperature Alloys and Creep
ResumoFace-centered cubic (FCC) phase in air-cooled and aged Zr-1.0Sn-1.0Nb-0.3Fe alloy was characterized by transmission electron microscopy (TEM) and high angle annular dark field scanning TEM (HAADF-STEM). The gliding of Shockley partial dislocations on basal planes of hexagonal close-packed (HCP) matrix results in the observed HCP// FCC and {0001}HCP//{11¯1}FCC orientation relationship. In addition, FCC-Zr phase can continue to grow during the aging process at 580°C instead of being replaced by HCP matrix.
Referência(s)