A casting eutectic high entropy alloy with superior strength-ductility combination

By Qingfeng Wu, Zhijun Wang, Tao Zheng, Da Chen, Zhongsheng Yang, Junjie Li, Ji Jung Kai, Jincheng Wang. Materials letters (General ed.), 2019

153 citations recorded by the source corpus.

Abstract Mechanical properties of casting alloys are generally limited. To make casting alloys applicable for a high level of service environments, a novel casting eutectic high entropy alloy (EHEA) with excellent mechanical properties is proposed. The hierarchical microstructures are with fine regular lamellar eutectic and coarse irregular eutectic. The eutectics consists of face-centered cubic (FCC) and ordered body-centered cubic (B2) phases with the semi-coherent interface. In the as-cast state, it shows a tensile strength of 1266.5 MPa and elongation of 20.3%. The unusual as-cast properties make it possible to manufacture high performance products by direct casting.

Subfields: Aerospace Engineering, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/97c5a657c6252bf30644820f21827757229a3d0c