Ni-Ta binary bulk metallic glasses
Ni-Ta binary bulk metallic glasses
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DOI：
10.1016/j.scriptamat.2010.03.044
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发表时间：
2010-07
影响因子：
6
通讯作者：
Yingmin Wang;Qing Wang;Jijun Zhao;C. Dong
中科院分区：
文献类型：
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作者：
Yingmin Wang;Qing Wang;Jijun Zhao;C. Dong
在成分为59- 62 at.%的范围内，制备了2 mm厚的Ni-Ta块体金属玻璃（BMG）倪根据团簇加胶原子模型，该组成范围可以用团簇式[MNi 6 Ta 6] Ni 3表示，其中M的范围从Ni到Nb。这些合金显示出约993 K的玻璃化转变温度Tg，这是已知BMG合金中最高的。它们也有很宽的过冷液相区ΔTx=Tx− Tg超过50 K。这些BMG表现出约3.5GPa的抗压强度。
Two millimeter Ni–Ta bulk metallic glasses (BMGs) were realized over a composition range of 59–62at.% Ni. According to the cluster-plus-glue-atom model, this composition range can be expressed by a cluster formula [MNi6Ta6]Ni3, where M ranges from Ni to Nb. These alloys show a glass transition temperature Tgof about 993K, the highest among known BMG alloys. They also have a wide undercooled liquid region ΔTx=Tx−Tgexceeding 50K. These BMGs exhibit ultrahigh strengths of about 3.5GPa.