摘要
用快淬方法制备Sm_(2+x)Fe_(17)合金。结果表明;当x=0.7时,可获得α—Fe含量极少的Sm_2Fe_(17)单相。经研磨,渗氮处理后,α—Fe仍能控制在3.0wt—%以下。主相为具有强烈单轴各向异性的Sm_2Fe_(17)相。快淬合金晶粒接近单畴,可望得到高矫顽力。获得的最高磁性能为:Br=0.7T,H_c=761.0kA/m,(BH)=45.6kJ/m^3,T_c=475℃。
Almost single phase Sm_(2+x)Fe_(17) alloy containing minute α-Fe may be prepared
by melt-spun at x=0.7. After ball milling and nitriding, α-Fe is still controlled below 3.0
wt-%. The primary phase is intense uniaxial anisotropic Sm_2Fe_(17) at room temperature. The
rapidly quenched alloy grains are approaching to mono-domain of high coercity. The best
magnetic properties obtained are: B_r=0.7 T, H_c=761.0 kA / m, (BH)=45.6 kJ/ m^3,
T_c=475℃.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
1993年第1期B045-B048,共4页
Acta Metallurgica Sinica
基金
快速凝固非平衡合金国家重点实验室资助
关键词
氮化物
快淬
硬磁合金
nitride
permanent magnet
rapid quenching
