摘要
通过多元合金化成分控制及热机械处理工艺优化,Fe_3Al基金属间化合物合金的室温力学性能得到较大幅度的全面提高延伸率由铸态下的2—3％上升到15—20％,屈服强度达到500MPa左右研究表明:片状晶粒。
The properties of Fe_3Al-based intermetallic alloys at room temperature have
been significantly improved through multi-alloying composition control and optimization of
thermomechanical process. The elongation was increased from2--3% for as-cast state to 15
--20%, the yield strength up to 500 MPa. It is found that the elongated flattened grains,
B_2 structure and dispersive second phase are beneficial to the comperehensive improvement
of mechanical properties at room temperature.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
1993年第8期A354-A358,共5页
Acta Metallurgica Sinica
基金
863高技术课题
关键词
金属互化物
FE3AL
形变热处理
Fe_3Al
iron aluminide
intermetallic compound
thermomechanical process
degree of long range order
