[Untitled]

Authors :: Lou Baiyang
Mao Zhiyuan
Chang Xiaobing
Liu Maosen
Source :: Journal of Materials Science. 34:4039-4042
Publication Year :: 1999
Publisher :: Springer Science and Business Media LLC, 1999.
Abstract: The DO3-type ordering in Fe-28Al and Fe-28Al-1.5Mn alloys are investigated by TEM and XRD. The results show that Mn addition into DO3-ordered Fe3Al alloy could decrease degree of ordering. Two major factors are considered to have effect of Mn on ordering behaviour of the alloy: reducing grain size and reducing antiphase domain size. The further investigation of deformed antiphase boundaries and slip lines in the alloy with Mn addition suggests that Mn could promote slip and cross slip in DO3 Fe3Al alloy during deformation.