添加元素对Mg-基非晶合金非晶形成能力和热稳定性的影响  

Effects of Addition Elements on Glass-forming Ability and Thermostability of Mg-Based Amorphous Alloys

作　　者：吴春姬[1] 张亚南[2] 王文全[1] 张金宝[1] 苏峰[1] 

机构地区：[1]吉林大学物理学院,长春130021 [2]吉林大学化学学院,长春130012

出　　处：《吉林大学学报（理学版）》2009年第5期1042-1046,共5页Journal of Jilin University:Science Edition

基　　金：国家自然科学基金(批准号:J0730311)

摘　　要：研究Mg60N i25Gd15-xNdx(x=0,7.5,15)和(Mg60N i25Gd15)100-xMx(M=Fe或Co)(x=0,3,5)非晶态合金快淬甩带样品的非晶形成能力(GFA)及热稳定性随成分的变化关系.结果表明,用Nd替代Gd可提高Mg60N i25Gd15-xNdx(x=0,7.5,15)合金的GFA和热稳定性,Fe或Co与主元素间的正混合热降低了(Mg60N i25Gd15)100-xMx(M=Fe或Co)合金的GFA和热稳定性.This work focuses on the analysis and study of the effects of substitution （addition） in Mg60 Ni25 Gd15-x Ndx （ x = 0,7.5,1 5 ） and （ Mg6o Ni25 Gd15 ） 100-x Mx （ M= Fe or Co） （ x = 0,3,5 ） amorphous alloys melt-spun ribbon on their properties including glass-forming ability （GFA） and thermostability. The substitution of Gd with Nd enhanced the GFA and thermostability. The former disadvantage of only caring about the improvement of GFA and neglecting the thermostability was conquered. The positive heat of mixing between Fe or Co and main components resulted in the decrease of GFA and thermostability.

关 键 词：Mg-基非晶合金 非晶形成能力 热稳定性 

分 类 号：O441.2[理学—电磁学]