Modeling of Temperature-Dependent Hardness for Pure FCC and HCP Metals

Author:

Xu Niandong1,Li Weiguo1,Ma Jianzuo1,Deng Yong1,Kou Haibo1,Li Ying1,Yang Mengqing1,Zhang Xuyao1,Zhang Xin1

Affiliation:

1. College of Aerospace Engineering, State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400030, P. R. China

Abstract

In this study, a theoretical model is developed to characterize the quantitative effect of temperature on the hardness of pure FCC and HCP metals. The model is verified by comparison with the available experimental results of Cu, Al, Zn, Mg, Be, Zr, Ni, Ir, Rh, and Ti at different temperatures. Compared with the widely quoted Westbrook model and Ito–Shishokin model which need piecewise fitting to describe experimental values, the present model merely needs two hardness values at different temperatures to predict the experimental results, reducing reliance on conducting lots of experiments. This work provides a convenient method to predict temperature-dependent hardness of pure metals, and it is worth noting that it can be applied to a wide temperature range from absolute zero to melting point.

Funder

National Natural Science Foundation of China

graduate scientific research and innovation foundation of Chongqing, China

The Fundamental Research Funds for the Central Universities

Chongqing Natural Science Foundation

Publisher

World Scientific Pub Co Pte Lt

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

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