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Interdiffusion behaviors and mechanical properties of Zn–Cr system
Calphad ( IF 1.9 ) Pub Date : 2021-06-23 , DOI: 10.1016/j.calphad.2021.102308
Rongjie Zhuang , Yongkang Tan , Ya Liu , Xiaoma Tao , Hongmei Chen , Yifang Ouyang , Yong Du

Diffusion couple technique has been utilized to study the interdiffusional behaviors of Zn–Cr system. Two intermetallic compounds (Zn13Cr, Zn17Cr) have been found in the diffusion zone between 598 K and 653 K. For the existence of Zn13Cr phase, the incremental diffusion couple has been used to confirm, and the results show that the Zn13Cr phase can be determined in the present work. However, the thickness of Zn13Cr is very thinner than that of Zn17Cr, which indicate the growth of Zn13Cr is very slow. The thickness of Zn17Cr satisfied the parabolic growth law. EPMA was used to obtain the composition profiles and the interdiffusion coefficients of Zn13Cr, Zn17Cr and Zn (hcp) have been extracted by forward simulation analysis embedded in ‘Pydiffusion’ code. The mechanical properties of Zn17Cr were also determined by nanoindentation technique, and the hardness and Young's modulus of Zn17Cr is 3.01 GPa and 165.78 GPa, respectively.



中文翻译:

Zn-Cr体系的相互扩散行为和力学性能

扩散偶技术已被用于研究Zn-Cr 系统的相互扩散行为。在 598 K 和 653 K 之间的扩散区发现了两种金属间化合物(Zn 13 Cr、Zn 17 Cr)。对于 Zn 13 Cr 相的存在,采用增量扩散偶来证实,结果表明:在目前的工作中可以确定Zn 13 Cr 相。然而,Zn 13 Cr的厚度比Zn 17 Cr的厚度要薄得多,这表明Zn 13 Cr的生长非常缓慢。Zn 17的厚度Cr 满足抛物线增长规律。EPMA 用于获得成分分布,并且通过嵌入“ Pydiffusion ”代码的正向模拟分析提取了Zn 13 Cr、Zn 17 Cr 和 Zn (hcp)的相互扩散系数。锌的机械特性17的Cr还通过纳米压痕技术测定,且硬度和Zn的杨氏模量17 Cr是3.01 GPA和165.78 GPA,分别。

更新日期:2021-06-24
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