Formation of Ni-Nb-Zr-X (X = Ti, Ta, Fe, Cu, Co) bulk metallic glasses
Formation of Ni-Nb-Zr-X (X = Ti, Ta, Fe, Cu, Co) bulk metallic glasses
复制标题
Ni-Nb-Zr-X（X = Ti、Ta、Fe、Cu、Co）块体金属玻璃的形成
DOI：
10.1016/j.jallcom.2008.01.075
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发表时间：
2008-07-28
影响因子：
6.2
通讯作者：
Jiang, J. Z.
中科院分区：
文献类型：
--
作者：
Hu, H. T.;Chen, L. Y.;Jiang, J. Z.
研究了Ni-Nb-Zr-X（X = Ti，Ta，Fe，Cu，Co，V，Y，Mo，Sn，Al，Si）大块非晶合金中第四元素对非晶形成能力的影响。其中，Co的加入可以提高Ni-Nb-Zr系非晶合金的玻璃形成面积。最佳的玻璃形成体是临界直径为3.5 mm的Ni 57 Nb 33 Zr 5CO 5合金。该合金在室温下暴露于空气中的腐蚀性6 M HCl中的腐蚀速率比不锈钢小约一个数量级。与不锈钢相比，该合金具有866 K的高Tg、45 K的过冷液相区Δ T-x、2.9GPa的压缩断裂强度、1%的压缩塑性和优异的耐腐蚀性。高的热稳定性、高的强度和压缩塑性以及优异的耐腐蚀性使这些合金具有潜在的工业应用。此外，在Ni-Nb-Zr-Co合金中加入Sn，可以有效地提高过冷液相的稳定性。Ni_（57）CO_5（Nb_（33/38）Zr_（5/38））（33）Sn-5 BMG的最大过冷液相区为85 K。(C)2008 Elsevier B. V.保留所有权利。
The effect of the fourth element on glass-forming ability (GFA) in Ni-Nb-Zr-X (X = Ti, Ta, Fe, Cu, Co, V, Y, Mo, Sn, Al, Si) bulk metallic glass (BMG) system has been studied. Among these elements, Co addition can increase GFA of the Ni-Nb-Zr BMG system. The best glass former is Ni57Nb33Zr5CO5 alloy with a critical diameter of 3.5 mm. The corrosion rate of this alloy is approximately one order of magnitude less than that of the stainless steel in aggressive 6 M HCl open to air at room temperature. This alloy exhibits high T-g of 866 K, supercooled liquid region Delta T-x of 45 K, compressive fracture strength of 2.9 GPa, 1% compressive plasticity, and excellent corrosion resistance as compared to stainless steel. The combination of high thermal stability, high strength with compressive plasticity and excellent corrosion resistance enables these alloys to have potential industrial applications. Furthermore, the addition of Sn to Ni-Nb-Zr-Co alloy is effective for enhancing the stability of supercooled liquid. The maximum supercooled liquid region of 85 K is obtained in Ni57CO5(Nb33/38Zr5/38)(33)Sn-5 BMG. (C) 2008 Elsevier B.V. All rights reserved.