The effect of annealing temperatures on the phase constitutes, thermal properties and corrosion behaviors of Ti-Ni-Zr-Cu high entropy alloy thin ribbons
The effect of annealing temperatures on the phase constitutes, thermal properties and corrosion behaviors of Ti-Ni-Zr-Cu high entropy alloy thin ribbons
复制标题
退火温度对Ti-Ni-Zr-Cu高熵合金薄带物相组成、热性能及腐蚀行为的影响
DOI：
10.1016/j.jallcom.2021.162947
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发表时间：
2022
影响因子：
6.2
通讯作者：
Wang Haizhen
中科院分区：
文献类型：
--
作者：
Yi Xiaoyang;Feng Xinxin;Huang Bowen;Sun Kuishan;Meng Xianglong;Gao Zhiyong;Zhang Yulei;Wang Haizhen
本文采用快速旋压技术成功制备了Ti-Ni-Zr-Cu非晶薄带。Ti-Ni-Zr-Cu薄带的晶化温度随升温速率的增大而升高。计算得到Ti-Ni-Zr-Cu薄带的晶化激活能为156 kJ/mol，由于混合原子对的负焓较小，该激活能明显低于文献报道的Zr-Cu基金属玻璃。退火后Ti-Ni-Zr-Cu薄带的相组成与退火温度密切相关。在低于850 °C的退火温度下，Ti-Ni-Zr-Cu薄膜的相组成基本相同，但随着退火温度的升高，各相的晶格常数逐渐减小。相应地，在低于750 °C的温度下退火的Ti-Ni-Zr-Cu薄带显示出较高的维氏硬度，而在850 °C下退火的Ti-Ni-Zr-Cu薄带中观察到显著的维氏硬度降低。此外，退火温度对合金的比热容和腐蚀性能也有显著影响，这是由于相组成的不同所致。
In the present study, the amorphous Ti-Ni-Zr-Cu thin ribbons were successfully prepared through rapid spinning technology. The crystallization temperature of Ti-Ni-Zr-Cu thin ribbon increased with the increasing of heating rate. The activation energy of crystallization for Ti-Ni-Zr-Cu thin ribbon is calculated to be 156 kJ/mol, which is remarkably lower than that of the reported Zr-Cu based metal glass due to the smaller negative enthalpy of mixing atomic pairs. The phase constituents of annealed Ti-Ni-Zr-Cu thin ribbons were largely related to the annealing temperatures. The phase constitutes of Ti-Ni-Zr-Cu thin films annealed at the temperatures lower than 850 °C is almost equal, but the lattice constant of various phases is gradually reduced with the increasing of annealing temperatures. In proportion, Ti-Ni-Zr-Cu thin ribbons annealed at the temperatures lower than 750 °C show the higher Vickers hardness, while a noteworthy reduction of Vickers hardness is observed in Ti-Ni-Zr-Cu thin ribbon annealed at 850 °C. Besides, the annealing temperature has a significant effect on the specific heat and corrosion properties, which can be attributed to the distinction of phase constituents.