金属力学性能的温升率效应研究概述

Brief overview of effects of temperature rising rate on mechanical properties of metals

总结了快速加热下金属力学性能温升率效应研究的有关工作和结果,包括二战刚结束的几年中美国的研究者采用材料宏观性能测试方法进行的研究和近十余年国内的研究者采用将宏观实验测试与材料微观组织观察相结合的方法进行的研究;指出在温升率效应方面应进一步进行更准确、系统的宏-微观实验和从时-空多尺度角度进行热-力-材料耦合的理论建模和数值模拟,获得更明确的规律性认识并归纳出工程可用的数学描述。

Researches into effects of temperature rising rate on mechanical properties of metals under rapid heating are reviewed, including those carried out by American researchers using methods of macroscopic tensile-heating experiments in 1950 or so and those by domestic researchers employing combined methods of macroscopic property measurements and microscopic constitution observations in recent years. It is mentioned that, as far as effects of temperature rising rate on mechanical properties of metals is concerned, more accurate and systematical macroscopic-microscopic experiments and theoretical modeling and numerical simulation of multi-scale thermo-mechanical-material coupling should be performed, clearer laws should be understood, and available mathematical formula in engineering should be developed in the future.