首页|激光增材制造网状结构金属基复合材料的研究进展

激光增材制造网状结构金属基复合材料的研究进展

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
  • 维普
相较于传统增强相呈均匀分布的金属基复合材料,网状结构金属基复合材料因其独特的"机械互锁""位错钉扎"等组织结构特征,具有更优异的室温强度、高温强度、弹性模量和断裂韧性,在航天、航空等领域上具有广泛的应用前景.激光增材制造技术可实现对网状结构的精细化调控,为网状结构金属基复合材料的进一步发展提供了新的途径.本文综述了高能量激光束诱导马兰戈尼对流作用下网状结构金属基复合材料的形成机理、影响网状结构形成的因素、不同类型网状结构的显微组织结构特征,分析了网状结构金属基复合材料的多段弯曲断裂、微孔聚集断裂等断裂机制,阐述了在霍尔-佩奇、奥罗万、泰勒、载荷传递等强化机制共同作用下的强化机理,以及独特的增强相贫、富区协同作用下的韧化机理,并对其未来的研究方向进行了展望.
Research progress on metal matrix composite with network structure fabricated by laser additive manufacturing
Compared with the conventional enhanced phase with uniform distribution of metal matrix composite,the metal matrix composite with network structure owes the higher room temperature and high temperature strength and elastic modulus,as well as excellent fracture toughness,it has a wide application prospect in aviation,aerospace and other fields,due to its unique characteristics of organization structure,such as"mechanically interlocked structure"and"dislocation locking".Due to the advantages of integrated near net shape manufacturing of complex components,high efficiency and energy saving,fine control and good metallurgical interface,the laser additive manufacturing technology has become a hot topic to fabricate metal matrix composite with network structure in recent years.The formation mechanism of metal matrix composite with network structure under high-energy laser-induced Maragroni convection,the factors affecting the formation of metal matrix composite with network structure,and the microstructure characteristics of network structures formed by different types of reinforcements were reviewed,the multi-stage bending fracture and microporous aggregation fracture of the metal matrix composite with network structure were analyzed,the strengthening mechanism of the network structure under the combined action of Hall-Petch strengthening,Orowan strengthening,Taylor strengthening and load transfer strengthening,and the fracture toughening mechanism under the synergistic action of the unique enhanced phase-rich and phase-poor regions were described,and the prospect of its development was prospected.

network structurelaser additive manufacturingmetal matrix compositefracture mechanismstrengthening and toughening mechanism

伍子纯、刘阳、李海尊、谭振国、唐楠、宋宇峰、刘筱、陈宇强

展开 >

湖南科技大学 机电工程学院,湘潭 411201

湖南科技大学 高功效轻合金构件成形技术及耐损伤性能评价湖南省工程研究中心,湘潭 411201

湖南西交智造科技有限公司,湘潭 411100

网状结构 激光增材制造 金属基复合材料 断裂机制 强韧化机理

国家自然科学基金湖南省科技创新项目湖南省科技创新项目湖南省科技创新项目湖南省教育厅科研项目国家级大学生创新创业训练计划

521053342021JJ402062022JJ200252022RC113421B0472202210534127

2024

10.11817/j.ysxb.1004.0609.2023-44178

中国有色金属学报
中国有色金属学会

中国有色金属学报

CSTPCD北大核心
影响因子：1.108
ISSN：1004-0609
年,卷(期)：2024.34(4)
  • 61