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Materials 2018, 11(1), 34; doi:10.3390/ma11010034

FEM Modeling of the Relationship between the High-Temperature Hardness and High-Temperature, Quasi-Static Compression Experiment

1
Institute of Manufacturing Engineering, National Huaqiao University, Xiamen 361021, China
2
College of Mechanical Engineering and Automation, National Huaqiao University, Xiamen 361021, China
*
Author to whom correspondence should be addressed.
Received: 27 November 2017 / Revised: 25 December 2017 / Accepted: 25 December 2017 / Published: 26 December 2017
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Abstract

The high-temperature hardness test has a wide range of applications, but lacks test standards. The purpose of this study is to develop a finite element method (FEM) model of the relationship between the high-temperature hardness and high-temperature, quasi-static compression experiment, which is a mature test technology with test standards. A high-temperature, quasi-static compression test and a high-temperature hardness test were carried out. The relationship between the high-temperature, quasi-static compression test results and the high-temperature hardness test results was built by the development of a high-temperature indentation finite element (FE) simulation. The simulated and experimental results of high-temperature hardness have been compared, verifying the accuracy of the high-temperature indentation FE simulation.The simulated results show that the high temperature hardness basically does not change with the change of load when the pile-up of material during indentation is ignored. The simulated and experimental results show that the decrease in hardness and thermal softening are consistent. The strain and stress of indentation were analyzed from the simulated contour. It was found that the strain increases with the increase of the test temperature, and the stress decreases with the increase of the test temperature. View Full-Text
Keywords: high temperature hardness; high temperature quasi-static compression experiment; FE simulation; thermal softening; stress distribution; strain distribution high temperature hardness; high temperature quasi-static compression experiment; FE simulation; thermal softening; stress distribution; strain distribution
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Zhang, T.; Jiang, F.; Yan, L.; Xu, X. FEM Modeling of the Relationship between the High-Temperature Hardness and High-Temperature, Quasi-Static Compression Experiment. Materials 2018, 11, 34.

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