γ辐照对Fe_(78)Si_9B_(13)非晶合金脆性影响的研究  

A study of the influence of γ-irradiation on brittleness of amorphous alloy Fe_(78)Si_9B_(13)

作　　者：许桂琴[1] 金慧娟[1] 陈明星[1] 张桂林[2] 刘文宏[2] 俞方华[2] 

机构地区：[1]上海钢铁研究所,上海200940 [2]中国科学院上海原子核研究所,上海201800

出　　处：《核技术》1993年第6期344-348,共5页Nuclear Techniques

摘　　要：利用穆斯堡尔效应、X射线衍射和正电子湮没方法研究了γ辐照对Fe_(78)Si_9B_(13)非晶合金退火脆性的影响。实验结果表明,在低温退火阶段,γ辐照能延缓拓扑短程序结构弛豫过程,从而使脆化温度提高了30℃左右。The influence of γ-irradiation on brittleness of the amorphous alloy Fe78Si9B13 annealed at different temperatures has been studied. It is shown that the brittleness temperature of the γ- irradiated alloy rises by about 30℃. The measurements of Mossbauer effect, X-ray diffraction, and positron annihilation indicate that this is attributed to the slowdown of the alloy's structure relaxation due to γ-irradiation before the crystallization.

关 键 词：脆性 铁基非晶 金属玻璃 Γ辐射 

分 类 号：TG139.8[一般工业技术—材料科学与工程]