Composition design and mechanical properties of ternary Cu–Zr–Ti bulk metallic glasses
Composition design and mechanical properties of ternary Cu–Zr–Ti bulk metallic glasses
复制标题
Cu-Zr-Ti三元大块金属玻璃的成分设计及力学性能
DOI：
10.1016/j.matdes.2013.10.057
复制
发表时间：
2014-03
期刊：
影响因子：
--
通讯作者：
Jinhong Pi
中科院分区：
文献类型：
--
作者：
Ye Pan;Yuqiao Zeng;Lijun Jing;Lu Zhang;Jinhong Pi
基于非晶形成热力学理论，综合计算合金的空位形成能、混合焓和组态熵，预测了三元Cu-Zr-Ti大块非晶合金的新成分。成功制备了直径为3 mm的非晶棒状材料，并通过X射线衍射、差示扫描量热、扫描电镜、透射电镜和压缩实验等手段对材料进行了表征。结果表明，所设计的合金具有良好的非晶形成能力和优异的力学性能。通过调整试样的成分可以有效地提高试样的力学性能。Cu 50 Zr 44 Ti6非晶合金棒材的断裂强度高达1855 MPa，塑性变形量高达1.74%。研究了试样中剪切带的形成和扩展。塑性变形的增强主要是由于剪切带的增殖和交叉。
The new compositions of ternary Cu–Zr–Ti bulk metallic glasses are predicted by integrating calculation of vacancy formation energy, mixing enthalpy and configuration entropy of the alloys based on thermodynamics of glass formers. The monolithic amorphous rods of 3 mm diameter have been successfully fabricated, and characterized by X-ray diffractometry, differential scanning calorimetry, scanning electronic microscopy, transmission electronic microscopy and compression tests. The results show that the designed alloys possess good glass forming ability and excellent mechanical properties. The mechanical properties of the samples can be effectively improved by regulating their composition. The monolithic amorphous rod of Cu50Zr44Ti6exhibits a high fracture strength of 1855 MPa and excellent plastic deformation up to ∼7.4%. The formation and propagation of shear bands in samples are also investigated. The enhancement of plastic deformation is mainly contributed to multiplication and intersection of shear bands.
登录
查看更多内容
影响因子：
9.4
作者：
Inoue, A;Zhang, W;Kurosaka, K
通讯作者：
Kurosaka, K
DOI：
10.2320/matertrans1989.41.1372
发表时间：
2000-11-01
期刊：
MATERIALS TRANSACTIONS JIM
影响因子：
--
作者：
Takeuchi, A;Inoue, A
通讯作者：
Inoue, A
影响因子：
4.4
作者：
Zhaoping Lu;H. Bei;C. Liu
通讯作者：
Zhaoping Lu;H. Bei;C. Liu
DOI：
10.1016/j.msea.2007.07.066
发表时间：
2008-06
影响因子：
6.4
作者：
X. Ji;Ye Pan
通讯作者：
X. Ji;Ye Pan
DOI：
10.1016/j.msea.2005.08.207
发表时间：
2005-11
影响因子：
6.4
作者：
H. Men;S. Pang;T. Zhang
通讯作者：
H. Men;S. Pang;T. Zhang