文献类型：期刊文献

英文题名：Grain refinement and localized amorphization of additively manufactured high-entropy alloy matrix composites reinforced by nano ceramic particles via selective-laser-melting/remelting

作者：Li, Bo[1];Zhang, Lei[1];Yang, Bin[1]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China

年份：2020

卷号：19

起止页码：56

外文期刊名：COMPOSITES COMMUNICATIONS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000534524400011)】；

基金：This work was sponsored by International Collaboration Program of Science and Technology Commission of Shanghai Municipality, China (No.19110712500).

语种：英文

外文关键词：Additive manufacturing; High-entropy alloy matrix composite; Grain refinement; Amorphous

摘要：Nano TiN-particle reinforced CoCrFeMnNi high-entropy alloy (HEA) matrix composites were additively manufactured via selective laser melting (SLM) and that with a remelting laser-scan strategy (RLSS). The RLSS process promoted the reinforcement-dispersity and thus further refined the HEA matrix grains. The generated hybrid amorphous-crystalline microstructure was benefited by RLSS-SLM to enhance strength and regulate plasticity. The dispersion behaviors and effects of nano TiN-particles were expounded. The amorphous formation mechanism was also discussed.