摘要
通过加铬合金化及合理的热加工工艺,制得了高室温韧性Fe_3Al金属间化合物。实验结果表明:合金元素铬的添加,改变了铁铝合金的断裂模式,即由纯解理断裂模式变为解理、沿晶混合断裂模式;铬的加入改善了室温韧性,提高了解理强度。
A Fe3Al intermetallic compound with high room temperature ductility has been obtained by means of combination of proper alloying addition and hot deformation. The relationship between properties and fractography was investigated. It was found that the fracture model of the alloys became a mired intergranuar-cleavage model while the Fe3Al containing no Cr showed pure cleavage one. The improvement of room ductility can be attributed to the increase of cleavage strength.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
1991年第6期539-543,共5页
Journal of University of Science and Technology Beijing
关键词
金属间化合物
铁铝合金
韧化
铬
Intel-metallic compound, Aluminides, ordering treatment, room temperature brittleness
