Achieving high hetero-deformation induced (HDI) strengthening and hardening in brass by dual heterostructures
Achieving high hetero-deformation induced (HDI) strengthening and hardening in brass by dual heterostructures
复制标题
通过双异质结构实现黄铜的高异质变形诱导 (HDI) 强化和硬化
DOI：
10.1016/j.jmst.2021.03.088
复制
发表时间：
2022
影响因子：
10.9
通讯作者：
Kaoumi, D.
中科院分区：
文献类型：
--
作者：
Fang, X.T.;Li, Z.K.;Wang, Y.F.;Ruiz, M.;Ma, X.L.;Wang, H.Y.;Zhu, Y.;Schoell, R.;Zheng, C.;Kaoumi, D.
异质结构材料由于其产生异质变形诱导（HDI）强化和硬化的能力而具有强度和延展性的上级组合。因此，实现高HDI强化和硬化是设计异质结构的主要目标。在这里，我们报告了一个双异质结构的黄铜，由异质片层和梯度结构，制造轧制，部分退火，和旋转加速喷丸（RASP）。与单异质结构相比，双异质结构能够产生额外的异质界面，这可以导致更高的HDI强化和硬化，以及强度和延展性的更上级组合。这一发现为金属材料异质结构的设计提供了一条新的途径。
Heterostructured materials have a superior combination of strength and ductility, due to their ability to produce hetero-deform induced (HDI) strengthening and hardening. Therefore, achieving high HDI strengthening and hardening is the primary goal for designing heterostructures. Here we report a dual heterostructure in brass that consists of the heterogeneous lamella and gradient structure, fabricated by rolling, partial annealing, and rotationally accelerated shot peening (RASP). The dual heterostructures are able to generate extra interfaces of heterogeneity compared to the single heterostructures, which could lead to higher HDI strengthening and hardening, and a more superior combination of strength and ductility. This finding presents a new pathway to designing heterostructures in metallic materials.