Fe_(73.5)Cu_1Nb_3Si_(13.5)B_9纳米晶铁芯的应力退火研究  

Study on Stress-annealing Treatment of Nanocrystalline Fe_(73.5)Cu_1Nb_3Si_(13.5)_B_9 Cores

作　　者：刘静雅[1] 陈文智[2] 支起铮[1] 

机构地区：[1]东北大学材料与冶金学院,沈阳110004 [2]钢铁研究总院国家非晶微晶工程技术研究中心,北京100081

出　　处：《金属功能材料》2005年第1期5-8,共4页Metallic Functional Materials

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.

关 键 词：FE73.5CU1NB3SI13.5B9 退火时间 析出相 非晶合金 空冷 纳米晶 应力 铁芯 剩磁 各向异性 

分 类 号：TB383[一般工业技术—材料科学与工程]