The Influence of Strain Rate on the Tensile Properties of a Nb-Ti/Cu Superconducting Composite Wire Under Variable Cryogenic Temperature
文献类型：期刊论文
| 作者 | Guan, Mingzhi1,2; Wang, Xingzhe1; Zhou, Youhe1 |
| 刊名 | IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
 |
| 出版日期 | 2016-03-01 |
| 卷号 | 26页码:5 |
| 关键词 | Mechanical characteristic strain rate superconducting composite wire tensile response variable cryogenic temperature |
| ISSN号 | 1051-8223 |
| DOI | 10.1109/TASC.2015.2510608 |
| 英文摘要 | The tensile properties of superconducting wires usually play an essential role in practical applications. The effect of strain rate on the tension responses of commercial superconducting composite wires consisting of niobium-47wt.% Ti filaments in a copper matrix (Nb-Ti/Cu) with a Cu: superconductor ratio of similar to 4.3, under variable cryogenic temperature, is experimentally investigated in this paper. A variable temperature cryostat system is employed, which provides the cooling environment from room temperature to liquid nitrogen temperature, and a compact-scale cryogenic-type extensometer is utilized to measure the tensile strains on the superconducting wires. Under a range of cryogenic temperatures, the corresponding stress and strains are recorded during the elongation of the wire with a broad range of strain rates (10(-1) to 10(-4) s(-1)). The cryogenic mechanical behaviors of the Nb-Ti/Cu composite wires, including the tensile strength and elongation at fracture, as well as the yield stress, are captured experimentally. It is shown that the ultimate tensile strength and the yield strength of the Nb-Ti/Cu superconducting wires increased linearly with cryogenic temperature for the lower strain rates, while notable nonlinear features appear at a higher strain rate. The elongations always increased nonlinearly with decreasing temperature for each tested strain rate, but the elongations decreased with higher strain rate. The Young's modulus approximately increases linearly with decreasing temperature for each strain rate. Additionally, the effect of strain hardening rate derived from the stress and strain relations for the superconducting wires at different cryogenic temperatures and strain rates is discussed. |
| 资助项目 | National Natural Science Foundation of China (NSFC)[11302225] ; Foundation for Innovative Research Groups of NSFC[11421062] ; National Key Project of Magneto-Constrained Fusion Energy Development Program[2013GB110002B] ; China Postdoctoral Science Foundation[2014M560820] ; National Scholarship Foundation of China[201404910172] |
| WOS研究方向 | Engineering ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000369077900001 |
| 出版者 | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
| 资助机构 | National Natural Science Foundation of China (NSFC) ; Foundation for Innovative Research Groups of NSFC ; National Key Project of Magneto-Constrained Fusion Energy Development Program ; China Postdoctoral Science Foundation ; National Scholarship Foundation of China |
| 源URL | [http://119.78.100.186/handle/113462/41579]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Wang, Xingzhe |
| 作者单位 | 1.Lanzhou Univ, Key Lab Mech Environm & Disaster Western China, Minist Educ China, Coll Civil Engn & Mech, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guan, Mingzhi,Wang, Xingzhe,Zhou, Youhe. The Influence of Strain Rate on the Tensile Properties of a Nb-Ti/Cu Superconducting Composite Wire Under Variable Cryogenic Temperature[J]. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,2016,26:5. |
| APA | Guan, Mingzhi,Wang, Xingzhe,&Zhou, Youhe.(2016).The Influence of Strain Rate on the Tensile Properties of a Nb-Ti/Cu Superconducting Composite Wire Under Variable Cryogenic Temperature.IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,26,5. |
| MLA | Guan, Mingzhi,et al."The Influence of Strain Rate on the Tensile Properties of a Nb-Ti/Cu Superconducting Composite Wire Under Variable Cryogenic Temperature".IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 26(2016):5. |
入库方式： OAI收割
来源：近代物理研究所
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