Author/Authors :
Tsai، نويسنده , , Ming-Hung and Yuan، نويسنده , , Hao and Cheng، نويسنده , , Guangming and Xu، نويسنده , , Weizong and Tsai، نويسنده , , Kun-Yo and Tsai، نويسنده , , Che-Wei and Jian، نويسنده , , Weiwei W. and Juan، نويسنده , , Chien-Chang and Shen، نويسنده , , Wan-Jui and Chuang، نويسنده , , Ming-Hao and Yeh، نويسنده , , Jien-Wei and Zhu، نويسنده , , Yuntian T. Zhu، نويسنده ,
Abstract :
High-entropy alloy is a new class of metallic materials with great potential for many applications. However, their microstructural characteristics, particularly those of precipitates, remain poorly understood. This has hindered the establishment of structure-property relationship in these alloys. Here, we report the morphology, crystal structure and composition of the precipitates in the Al0.3CoCrCu0.5FeNi high-entropy alloy. Two types of precipitates were identified, namely the plate-like and the spherical precipitates. Their formation sequence and mechanism during the cooling process are discussed based on thermodynamics.
Keywords :
B. Precipitates , D. Microstructure , F. Electron microscopy , D. Widmanstنtten morphology , transmission
