Design and Application of Micro Spherical Indentation Testing Device for High Temperature
In order to integrate the"dual carbon"concept into experimental teaching and cultivate"dual carbon"talents,a micro spherical indentation testing device for high temperature has been developed and built.The testing device includes three parts:a room temperature indentation testing module,a heating temperature control system,and an insulation structure,it can achieve indentation testing from room temperature to 300 ℃.After heating the temperature control system and maintaining a constant temperature,multiple loading and unloading cycles are performed to obtain the corresponding compression load displacement curve at the corresponding temperature.The stress-strain curve is fitted using calculation software and the yield strength and tensile strength are calculated,achieving correlation with conventional high-temperature tensile experiments.After conducting tests on Q345 steel block specimens at room temperature to 300 ℃,the corresponding yield strength and tensile strength are obtained.The results are compared with the standard tensile curve,and the errors are within a reasonable range.
high temperatureindentationtesting devicemechanical property
万方数据
维普
