Glass-forming ability and corrosion resistance of Zr-based Zr–Ni–Al bulk metallic glasses
Glass-forming ability and corrosion resistance of Zr-based Zr–Ni–Al bulk metallic glasses
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DOI：
10.1016/j.jallcom.2011.11.073
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发表时间：
2012-09
影响因子：
6.2
通讯作者：
Y. H. Li;Y. H. Li;Wei Zhang;Wei Zhang;C. Dong;J. Qiang;G. Xie;K. Fujita;A. Inoue
中科院分区：
文献类型：
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作者：
Y. H. Li;Y. H. Li;Wei Zhang;Wei Zhang;C. Dong;J. Qiang;G. Xie;K. Fujita;A. Inoue
在54- 64 at.%的范围内，可以制备出直径大于10 mm的Zr-Ni-Al非晶合金Zr，21-27at.% Ni，11-21at.%铝通过铜模铸造方法。Zr 60 Ni 25 Al 15和Zr 58 Ni 27 Al 15合金具有最佳的非晶形成能力，制备出直径达15 mm的非晶样品。Zr 60 Ni 25 Al 15块体非晶合金具有超过1740 MPa的压缩屈服强度和大于3.0%的塑性应变，其力学性能和断裂模式与铸造试样的尺寸和试样在棒中的加工位置几乎无关。此外，块体金属玻璃在含氯离子的溶液中显示出高的耐腐蚀性。
Zr–Ni–Al metallic glass samples with diameters above 10mm could be produced in a wide composition range of 54–64at.% Zr, 21–27at.% Ni, and 11–21at.% Al by a copper mold casting method. The best glass-forming ability was obtained for Zr60Ni25Al15and Zr58Ni27Al15alloys, and the glassy samples with diameters up to 15mm were fabricated. The Zr60Ni25Al15bulk metallic glass possesses high compressive yield strength of over 1740MPa with large plastic strain above 3.0%, and the mechanical properties and fracture mode are almost independent of the cast sample size or the position within the rod where the samples have been machined. In addition, the bulk metallic glass shows high corrosion resistance in chloride-ion-containing solutions.