激波作用非晶态合金FeCuNbSiB的物理冶金效应研究  

The Shock Wave Physical Metallurgy Phenomenon of FeCuNbSiB Amorphous Alloys

作　　者：赵鹤云[1] 李跃华[2] 阚家德[1] 刘佐权[1] 

机构地区：[1]云南大学材料科学与工程系,昆明650091 [2]大理学院化学系,云南大理671200

出　　处：《材料工程》2006年第z1期24-27,30,共5页Journal of Materials Engineering

基　　金：国家自然科学基金资助项目(59671013)

摘　　要：本工作介绍了非晶态合金FeCuNbSiB在激波冲击作用下转变成具有纳米尺寸的多晶相材料这一新的物理冶金应,并用XRD,TEM,DSC技术对实验结果进行了研究。结果表明,尽管激波晶化时间极短,却具有极高的转变速率,晶化时间仅为退火晶化时间的10-6~10-9,晶化度却接近100%。和退火晶化相比,这些结果很难用传统的固态扩散相变理论解释。激波纳米晶化这种新的物理冶金效应可能进一步改进和完善传统的晶化理论。A new physical metallurgy phenomenon,amorphous alloys FeCuNbSiB transformed to polycrystalline material with nanometer size grains under impacted by shock wave,is presented in this paper.Some results of this physical metallurgy phenomenon were studied by XRD,TEM and DSC technique.It was found that the shock wave crystallization is very close to 100%,though the period of crystallization is only about 10^(-6)~10^(-9)s.Compared with the traditional annealing crystallization,these results seem novel and are very difficult to be explained by the diffusion theory of solid state phase transition.The shock wave nano-crystallization of amorphous alloy is a novel metallurgical phenomenon with possibilities for improving the crystallization theory in physics.

关 键 词：非晶合金 纳米晶化 激波晶化 

分 类 号：O736[理学—晶体学] O794[机械工程—光学工程] O432.12[理学—光学]