摘要
将环状Fe73 .5Cu1Nb3 Si13 .5B9非晶合金在 5 4 0℃应力退火 ,形成具有蠕变感生各向异性的Fe73 .5Cu1Nb3 Si13 .5B9纳米晶铁芯。在炉冷条件下 ,应力退火的剩磁Br 随退火时间的延长可降至 0 .2 2T ;退火时间超过 2 0min后 ,Br无明显改变。炉冷条件下获得的剩磁要低于空冷的剩磁。应力的作用对晶化过程中析出相的微观结构没有影响。
Nanocrystalline Fe 73.5Cu 1Nb 3Si 13.5B 9 alloy with creep-induce d magnetic anisotropy is obtained by annealing Fe 73.5Cu 1Nb 3Si 13.5B 9 amor phous cores under tensile stress at 540℃. When the cores is cooled in the furnace, remanence B r d ecreases to as low as 0.22T with annealing time and then keeps unchangeable afte r annealing for more than 20 minutes. B r of the cores cooled within the furnace with stress-annealing treatment is lower than that cooled in the air. The stres s has no effect on the microstructure of precipitated phase during crystallizati on.
出处
《金属功能材料》
CAS
2005年第1期5-8,共4页
Metallic Functional Materials
