Theoretical prediction method of Young's modulus and yield strength of micron particle reinforced metal matrix composites at different temperatures

被引：15

作者：

Dong, Pan ^{[1
,2
]}

Ma, Yanli ^{[2
]}

Zhang, Xuyao ^{[2
]}

He, Yi ^{[2
]}

Zhao, Ziyuan ^{[2
]}

Ma, Jianzuo ^{[3
]}

Li, Weiguo ^{[1
,2
]}

Li, Yile ^{[4
]}

机构：

[1] Chongqing Univ, State Key Lab Coal Mine Disaster Dynam & Control, Chongqing 400044, Peoples R China

[2] Chongqing Univ, Coll Aerosp Engn, Chongqing Key Lab Heterogeneous Mat Mech, Chongqing 400044, Peoples R China

[3] Chongqing Ind Polytech Coll, Coll Mech Engn & Automation, Chongqing 401120, Peoples R China

[4] Southwest Univ, High Sch, Chongqing 400045, Peoples R China

来源：

COMPOSITE STRUCTURES | 2023年 / 316卷

关键词：

Micron particle reinforced metal matrix; composites; Temperature dependent; Porosity; Grain boundary slip; Young 's modulus and yield strength; Prediction model; MECHANICAL-PROPERTIES; FRACTURE-TOUGHNESS; ALUMINUM; BEHAVIOR; NANOCOMPOSITES; MICROSTRUCTURE; TENSILE; MODEL; PERFORMANCE; EVOLUTION;

D O I：

10.1016/j.compstruct.2023.117051

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

To begin with, a theoretical characterization model of temperature and porosity dependent Young's modulus for micron particle reinforced metal matrix composites is established by considering the evolution of properties of reinforced particles and metal matrix with temperature. Additionally, combining the existing strengthening mechanism theory and incorporating the influence of grain boundary slip on the related strengthening mecha-nism and the yield strength of metal matrix, a temperature dependent yield strength analysis model of micron particle reinforced metal matrix composites is proposed. These models only require material parameters at room temperature and temperature dependent specific heat capacity at constant pressure for application. In addition, the predicted results from these models are reasonable and consistent with measured results. Moreover, based on the established models, the effects of key material parameters and main mechanisms on Young's modulus and yield strength of composites and their variation with temperature are explored. Furthermore, the variation of various control mechanisms with the particle size and temperature is clarified. It lays a theoretical foundation for the development of micron particle reinforced metal matrix composites that are suitable for high-temperature environments and for the optimization of their key parameters.

引用

页数：11

共 41 条

[41] Friction Stir Welding of Al-Cu Alloy Metal Matrix Composites Reinforced with B4C and Graphite Particle Fabricated by Stir Casting and Thixoforming Method [J].

Sekar, K. ;

Vasanthakumar, P. .

ADVANCES IN ADDITIVE MANUFACTURING AND JOINING, AIMTDR 2018, 2020, :507-519

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