Nb3Sn超导线材室温拉伸试验方法
Tensile Test Method of Nb3Sn Superconducting Wire at Room Temperature
摘 要
利用Zwick Z020型电子万能材料试验机和Zwick Laserxters 1000762型光学引伸计测试了Nb3Sn超导线材的力学性能，研究并制定了一套高精度、高稳定性的室温拉伸试验方法。为了验证该方法的可行性及稳定性，对其进行了多组数据测试，并计算了各性能的平均值X、标准方差s、相对标准偏差COV、相对标准不确定度URSU（N）。结果表明：该方法测试出的Nb3Sn超导线材力学性能的精确度及稳定性均很高，该试验方法可为高场磁体及加速器磁体的顺利研制提供有效保证。
拉伸试验
屈服强度
相对标准不确定度
Nb3Sn superconductor wire
tensile test
yield strength
relative standard uncertainty
Abstract
The mechanical properties of Nb3Sn superconducting wire were tested by Zwick Z020 electronic universal material testing machine and Zwick Laserxters 1000762 optical extensimeter. A set of high precision and high stability tensile test method at room temperature has been researched and formulated. In order to verify the feasibility and stability of the method, multiple sets of data were tested and the mean value X, the standard deviation s, the relative standard deviation COV and the relative standard uncertainty URSU (N) of each performance were calculated. The results show that the accuracy and stability of mechanical properties of Nb3Sn superconductor material tested by the method were very high. The test method could provide an effective guarantee for the smooth development of high field magnets and accelerator magnets.
中图分类号 TG143.2 DOI 10.11973/lhjy-wl201907001
所属栏目 试验与研究
基金项目 陕西省国际科技合作计划项目基金（2017KW-022）
收稿日期 2019/4/23
修改稿日期
网络出版日期
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备注郭强(1984-),男,高级工程师,硕士生导师,主要从事超导材料制备技术的研究,guoqiang@c-wst.com
引用该论文: GUO Qiang,FENG Ran,ZHANG Kailin,LIU Jianwei,LI Jianfeng,LIU Xianghong,FENG Yong,ZHANG Pingxiang. Tensile Test Method of Nb3Sn Superconducting Wire at Room Temperature[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2019, 55(7): 433～436
郭强,冯冉,张凯林,刘建伟,李建峰,刘向宏,冯勇,张平祥. Nb3Sn超导线材室温拉伸试验方法[J]. 理化检验－物理分册, 2019, 55(7): 433～436
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参考文献
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【2】LI J F, ZHANG K, SHI Y G, et al. New progress of Nb3Sn strand production for ITER in WST[J]. IEEE Transactions on Applied Superconductivity,2016,26(3):1235-1238.
【3】LIU S Y, WANG M, PAN C H, et al. Progress on TF and PF conductor for ITER in China[J]. IEEE Transactions on Applied Superconductivity,2014,24(3):1-4.
【4】BRUZZONE P, SEDLAK K, STEPANOV B, et al. Design, manufacture and test of a 82 kA react&wind TF conductor for DEMO[J]. IEEE Transactions on Applied Superconductivity,2016,26(4):1-2.
【5】QIN J G, WU Y, XIANG B L, et al. Manufacturing of Nb3Sn sample conductor for CFETR central solenoid model coil[J]. IEEE Transactions on Applied Superconductivity,2017,27(4):3-7.
【6】DEVRED A, BACKBIER I, BESSETTE D, et al. Status of ITER conductor development and production[J]. IEEE Transactions on Applied Superconductivity,2012,22(3):6-9.
【7】ZHENG J X, LIU X F, SONG Y T, et al. Concept design of CFETR superconducting magnet system based on different maintenance ports[J]. Fusion Engineering and Design,2013,88(11):2960-2966.
【8】LI J F, ZHANG K, SHI Y G, et al. Progress on internal-tin route Nb3Sn superconducting strand for ITER in China[J]. Materials Science,2013,745:158-162.
【9】刘鹏鹏,叶又,魏一凡,等. 金属材料高应变速率拉伸试验的应用及现状[J]. 理化检验(物理分册),2018,54(9):641-646.
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