共 50 条
Grain refinement and localized amorphization of additively manufactured high-entropy alloy matrix composites reinforced by nano ceramic particles via selective-laser-melting/remelting
被引:55
|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
关键词:
Additive manufacturing;
High-entropy alloy matrix composite;
Grain refinement;
Amorphous;
MICROSTRUCTURE;
D O I:
10.1016/j.coco.2020.03.001
中图分类号:
TB33 [复合材料];
学科分类号:
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.
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页码:56 / 60
页数:5
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