文章信息/Info

Title:

Mechanical Behavior of Nano-Laminated Metal Matrix Composites

文章編號:

1674-3962(2022)05-0371-12

作者:

鄭思婷; 趙蕾; 郭強

（上海交通大學 金屬基復合材料國家重點實驗室，上海 200240）

Author(s):

ZHENG Siting;  ZHAO Lei;  GUO Qiang

(State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China)

關鍵詞:

金屬基復合材料; 納米疊層構(gòu)型; 微納力學測試; 強韌化機制; 變形機制

Keywords:

metal matrix composites;  nano-laminated structure;  micro-/nano-mechanical tests;  strengthening and toughening mechanism;  deformation mechanism

分類號:

TB331

DOI:

10.7502/j.issn.1674-3962.202011021

文獻標志碼:

A

摘要:

納米疊層金屬基復合材料（nano-laminated metal matrix composites, NLMMCs）由金屬和增強材料（陶瓷、非晶以及納米碳材料）以層狀形式交替疊加組成，是構(gòu)型化金屬基復合材料的一種典型代表。由于組分相的納米尺度、疊層構(gòu)型以及大量的異質(zhì)界面，NLMMCs表現(xiàn)出優(yōu)異的綜合力學和功能性能，成為近年來材料科學的研究熱點。以金屬-陶瓷型、金屬-非晶型和金屬-納米碳型NLMMCs為主要對象，重點綜述了NLMMCs的常見制備工藝及相應的特點，并聚焦于采用微納力學方法探究內(nèi)在和外在特征尺度、疊層取向以及界面特性等對其強韌化和變形機制影響的研究新進展。最后展望了NLMMCs的發(fā)展趨勢，指出了NLMMCs在特定服役條件下的力學響應機制有待進一步研究，提出了需要開發(fā)適用于在多物理場下工作的微納尺度材料表征和測試系統(tǒng)，以便更精準地探究NLMMCs的使役行為。

Abstract:

Nano-laminated metal matrix composites (NLMMCs) are composed of metal and reinforcement (such as ceramic, amorphous and nanocarbon materials) alternately stacked in layers, which is a typical representative of “architectured” metal matrix composites. Due to the presence of the nano-scale of component phases, laminated configuration and abundant heterogeneous interfaces, NLMMCs are widely reported to have excellent mechanical and functional properties. Taking metal-ceramic, metal-amorphous and metal-nanocarbon NLMMCs as the objects, this article reviews the recent development on the common fabrication processing and the corresponding features of the composites. Particular emphasis is given to the effect of internal and external dimensions, nanolaminate orientation and interface feature on the strengthening, toughening and deformation mechanisms. To meet the requirements of engineering application, the study on the mechanical behavior under special service conditions is to be carried out and a micro-/nano-scale material characterization and testing system suitable for working in multiple physical fields should be developed.