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CoCuFeNi high entropy alloy reinforced by in-situ W particles

机译：通过原位W颗粒加固的椰子芬高熵合金

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摘要

(CoCuFeNi)_(100-x)W_x (x = 0, 5, 15) high entropy alloys (HEAs) were prepared by arc melting. Five atomic percent of tungsten can completely dissolve into CoCuFeNi, forming face-centered cubic solid solution. In-situ W particles formed in CoCuFeNi matrix with 15 at.% W addition with semi-coherent interface between W particles and CoCuFeNi matrix. The yield strength of (CoCuFeNi)_(85)W_(15) was increased by -46% with minor reduction in ductility compared with CoCuFeNi HEA. The strengthening mechanisms for (CoCuFeNi)_(85)W_(15) included solid solution strengthening, grain refinement strengthening as well as second phase strengthening. The ductility of (CoCuFeNi)_(85)W_(15) was resulted from grain size refinement and the plasticity of W particles and CoCuFeNi.
机译：（Cocufeni）_（100-x）W_x（X = 0,5,15）通过电弧熔化制备高熵合金（HEAS）。五种原子百分比钨可以完全溶于椰子烯烯，形成朝向的立方固溶体。原位W颗粒在Cocufeni基质中形成15.％W.％w添加W颗粒和椰子烯基质之间的半相干界面。与Cocufeni Hea相比，（Cocufeni）_（85）W_（15）的屈服强度增加-46％，延展性轻微降低。 （Cocufeni）_（85）W_（15）的强化机制包括固体溶液强化，晶粒细化强化以及第二相强化。 （Cocufeni）_（85）W_（15）的延性是由晶粒尺寸细化和W颗粒和椰子烯的可塑性产生的。

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