高温微米球压痕测试装置的设计与应用  

Design and Application of Micro Spherical Indentation Testing Device for High Temperature

作　　者：杨滨[1] 宋慧伟 蒋文春[1] YANG Bin;SONG Huiwei;JIANG Wenchun(College of New Energy,China University of Petroleum(East China),Qingdao 266580,Shandong,China)

机构地区：[1]中国石油大学(华东)新能源学院,山东青岛266580

出　　处：《实验室研究与探索》2024年第3期41-45,共5页Research and Exploration In Laboratory

基　　金：国家自然科学基金项目(52275168)。

摘　　要：为了将“双碳”理念融入实验教学,搭建了高温微米球压痕测试装置。该测试装置包括常温压痕测试模块、加热温控系统、隔热结构3个部分,可实现室温至300℃下的压痕测试。通过温控系统加热升温并保持温度恒定后,多次加卸载循环下获得相应温度的压入载荷-位移曲线,利用计算软件拟合得到应力-应变曲线并计算屈服强度及抗拉强度,实现与常规高温拉伸实验的关联。在对Q345钢块状试样进行室温至300℃下的测试后,获得了相应的屈服强度与抗拉强度,与标准拉伸曲线进行对比,误差均在合理范围内。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.

关 键 词：高温 压痕 测试装置 力学性能 

分 类 号：TH879[机械工程—仪器科学与技术]