Alloying effects of the elements with a positive heat of mixing on the glass forming ability of Al-La-Ni amorphous alloys

查看全文 作　　者：CHEN [1]ZiPan;GAO [1]JingEn;WU [1]Yuan;WANG [1]Hui;LIU [1]XiongJun;LU [1]ZhaoPing

机构地区：[1]State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing

出　　处：《Science China(Physics,Mechanics & Astronomy)》索引2014年第57卷第1期,共6页

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.51010001 and 51001009);the 111 Project(Grant No.B07003);the Program for Changjiang Scholars and Innovative Research Team in University 摘　　要：The effects of Sn and Ga additions on the glass forming ability(GFA)of(Al86La5Ni9)100 xSnx(x=0,0.2,0.3,0.5,0.7,1 and 2at.%)and(Al86La5Ni9)100 xGax(x=0,0.2,0.5,1 and 1.5 at.%)alloys were systematically investigated.Unlike common microalloying methods,both Sn and Ga have a positive heat of mixing with the main component of Al.Our analysis confirmed that proper Sn addition can suppress the strong formation ofα-Al and enhance the GFA due to the positive heat of mixing between Sn and Al and the large difference in their atomic sizes.While the addition of Ga to the base alloy acted as the nucleation cites forα-Al and accelerated precipitation of theα-Al phase,thus deteriorating the GFA. 关键词：合金化作用非晶形成能力混合非晶合金元素玻璃形成能力建筑面积尺寸差异

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Alloying effects of the elements with a positive heat of mixing on the glass forming ability of Al-La-Ni amorphous alloys

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