材料低温力学性能测试技术研究进展  

Advances in mechanical property testing at cryogenic temperature

作　　者：吴英哲 赵钦宇[3] 甘智华[3] 郑津洋[1] 顾超华[1] 匡继勇[1] 刘宝庆[1] Wu Yingzhe;Zhao Qinyu;Gan Zhihua;Zheng Jinyang;Gu Chaohua;Kuang Jiyong;Liu Baoqing(Institute of Process Equipment,Zhejiang University,Hangzhou 310027,China;Shanghai HyMaster,Inc.,Shanghai 201400,China;Institute of Refrigeration and Cryogenic Engineering,Zhejiang University,Hangzhou 310027,China)

机构地区：[1]浙江大学化工机械研究所,杭州310027 [2]上海司氢科技有限公司,上海201400 [3]浙江大学制冷与低温工程研究所,杭州310027

出　　处：《低温工程》2021年第5期18-27,共10页Cryogenics

基　　金：国家重点研发计划项目(No.2018YFC0808802)。

摘　　要：介绍了材料低温力学性能测试装置的组成架构及工作原理,概述了测试装置研发及应用的国内外现状,分析了低温环境技术实现的4种方式并进行了多角度对比。结果表明,稳定低温环境系统及其测量控制系统是材料低温力学性能测试装置的核心,基于主动制冷机的无液冷却方式相对有液冷却方式,具有极限温度低、测试范围宽、低温液体依赖度小、运行成本低等优势,具有良好应用前景。This paper introduces the basic configuration and working principle of cryogenic testing setup for mechanical properties.Advances in such apparatus worldwide are reviewed,while different cryogenic cooling methods are compared and analyzed.The result shows that cryo-genic cooling associated with its measurement and control system is the key of such testing setup.Furthermore,comparing to the cryogen cooling,cryogen-free cooling method by using active cryo-coolers has many advantages such as lower testing temperature,wider testing temperature range,cryogen-free and lower operation cost.

关 键 词：低温 力学性能 测试技术 

分 类 号：TB64[一般工业技术—制冷工程]