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Directly cast fibrous heterostructured FeNi0.9Cr0.5Al0.4 high entropy alloy with low-cost and remarkable tensile properties by Zhenfei Jiang; Weiping Chen; Chenliang Chu; Zhiqiang Fu; Julia Ivanisenko; Hao Wang; Siyuan Peng; Yemao Lu; Enrique J. Lavernia; Horst Hahn is a Engineering article available to read on EtoBox.
What is Directly cast fibrous heterostructured FeNi0.9Cr0.5Al0.4 high entropy alloy with low-cost and remarkable tensile properties about?
As-cast alloys generally require additional processing steps before optimal strength-ductility combinations can be achieved, thereby impeding the progress of manufacturing high-performance metallic products by direct casting. Here we report a novel low-cost FeNi0.9Cr0.5Al0.4 high entropy alloy with unique fibrous heterogeneous solidification microstructure, i.e., fibers-like face-centered-cubic soft phases that are enveloped in nano-sized ordered body-centered-cubic hard shells. This fibrous microstructure is thought to be responsible for the notable mechanical properties, which includes a yield strength of ∼670 MPa and an ultimate tensile strength of ∼1196 MPa, together with a uniform elongation of ∼21.1% at room temperature. Experimental results confirm the suggestion that the combination of a high strength and good ductility can be attributed to the hetero-deformation induced hardening mechanism generated from the soft-fiber and hard-shell interface. The cost-effectiveness of this as-cast FeNi0.9Cr0.5Al0.4 alloy with its unique fibrous structure and outstanding tensile properties renders it an ideal candidate for structural applications.
Who reads Directly cast fibrous heterostructured FeNi0.9Cr0.5Al0.4 high entropy alloy with low-cost and remarkable tensile properties?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Zhenfei Jiang; Weiping Chen; Chenliang Chu; Zhiqiang Fu; Julia Ivanisenko; Hao Wang; Siyuan Peng; Yemao Lu; Enrique J. Lavernia; Horst Hahn
- Publisher
- Elsevier BV
- Published
- 2023
- Language
- EN
- Field
- Engineering (Physical Sciences)