应用数学和力学2026，Vol.47Issue(1)：57-67,11.DOI:10.21656/1000-0887.460044
纳米颗粒增强金属基复合材料温度相关性屈服强度理论表征模型
A Theoretical Characterization Model for Temperature-Dependent Yield Strengths of Metal Matrix Composites Reinforced With Nanoparticles
摘要
Abstract
Through quantitative characterization of the effects of various strengthening mechanisms on the yield strengths of nanoparticle-reinforced metal matrix composites(NRMMCs)within a wide temperature range,as well as the impacts of grain boundary sliding on the yield strength of the metal matrix,a theoretical character-ization model for the temperature-dependent yield strengths of NRMMCs without fitting parameters was estab-lished.This model only requires the yield strength of the metal matrix at any one reference temperature and rel-evant material parameters such as the specific heat capacity,the thermal expansion coefficient,and the melting point,etc.,to predict the yield strengths of the NRMMCs at any temperature.The predicted results of the mod-el are in good agreement with all the 4 sets of experimental data currently available,achieving a reasonable pre-diction of the yield strengths of the NRMMCs within a wide temperature range.On this basis,the effects of the main strengthening mechanisms on the yield strengths of the NRMMCs and their evolution laws with the temper-ature and the particle size were discussed,to provide a theoretical basis and effective suggestions for the design and development of NRMMCs applicable to a wide temperature range.关键词
纳米颗粒增强金属基复合材料/温度相关性/屈服强度/理论表征模型/强化机制Key words
nanoparticle reinforced metal matrix composite/temperature dependence/yield strength/theoret-ical characterization model/reinforcement mechanism分类
数理科学引用本文复制引用
王翊霖,李卫国,麻建坐..纳米颗粒增强金属基复合材料温度相关性屈服强度理论表征模型[J].应用数学和力学,2026,47(1):57-67,11.基金项目
中央高校基本科研业务费(2024IAIS-ZD008) （2024IAIS-ZD008）
国家自然科学基金(面上项目)(12272073) （面上项目）
