Research progress on metal matrix composite with network structure fabricated by laser additive manufacturing

被引：0

作者：

Wu Z. ^{[1
,2
]}

Liu Y. ^{[1
,3
]}

Li H. ^{[2
]}

Tan Z. ^{[3
]}

Tang N. ^{[2
]}

Song Y. ^{[2
]}

Liu X. ^{[1
]}

Chen Y. ^{[2
]}

机构：

[1] School of Mechanical Engineering, Hunan University of Science and Technology, Xiangtan

[2] Hunan Engineering Research Center of Forming Technology, Damage Resistance Evaluation for High Efficiency Light Alloy Components, Hunan University of Science and Technology, Xiangtan

[3] Hunan Xijiao Zhizao Technology Co., Ltd., Xiangtan

来源：

Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals | 2024年 / 34卷 / 04期

基金：

中国国家自然科学基金;

关键词：

fracture mechanism; laser additive manufacturing; metal matrix composite; network structure; strengthening and toughening mechanism;

D O I：

10.11817/j.ysxb.1004.0609.2023-44178

中图分类号：

学科分类号：

摘要：

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. © 2024 Central South University of Technology. All rights reserved.

引用

页码：1052 / 1070

页数：18

共 61 条

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