| 题名 | Ultrahigh cycle fatigue of nanocrystalline NiTi tubes for elastocaloric cooling |
| 作者 | |
| 通讯作者 | Hua，Peng |
| 发表日期 | 2022-03-01
|
| DOI | |
| 发表期刊 | |
| ISSN | 2352-9407
|
| EISSN | 2352-9407
|
| 卷号 | 26 |
| 摘要 | Elastocaloric cooling using superelastic NiTi shape memory alloy with reversible phase transformation is a promising environmentally friendly technology, but the limited fatigue life of conventional coarse-grained NiTi remains a crucial bottleneck. Here, we report the ultrahigh fatigue life of nanocrystalline NiTi tubes, exceeding 120 million cycles under a compressive stress of 800 MPa. The NiTi tubes demonstrate stable cyclic stress-strain responses and a stable adiabatic temperature drop of 6.6 K in the lifespan. The material coefficient of performance increases from the initial 8.8 to 11.6 of the 10th compressive cycle. The high resistance to nucleation and growth of compression-parallel cracks results in the ultrahigh fatigue life of the tubes. Our research shows the great potentials of nanocrystalline NiTi tubes with both stable thermomechanical properties and long compressive fatigue lives for reliable elastocaloric cooling. |
| 关键词 | |
| 相关链接 | [Scopus记录] |
| 收录类别 | |
| 语种 | 英语
|
| 学校署名 | 其他
|
| 资助项目 | Hong Kong Research Grant Council (GRF Project)[16206119]
; Project of Hetao Shenzhen-Hong Kong Science and Technology Innovation Cooperation Zone[HZQB-KCZYB-2020083]
; Science, Technology and Innovation Commission of Shenzhen Municipality of China[SGDX2019081623360564]
; National Natural Science Foundation of China[52122102]
; Natural Science Foundation of Guangdong[2019A1515011755]
; [C2M3]
|
| WOS研究方向 | Materials Science
|
| WOS类目 | Materials Science, Multidisciplinary
|
| WOS记录号 | WOS:000783906400007
|
| 出版者 | |
| EI入藏号 | 20220511576718
|
| EI主题词 | Binary alloys
; Cooling
; Martensitic transformations
; Nanocrystalline alloys
; Nanocrystals
; Shape-memory alloy
; Titanium alloys
; Tubes (components)
|
| EI分类号 | Metallography:531.2
; Titanium and Alloys:542.3
; Pipe, Piping and Pipelines:619.1
; Heat Transfer:641.2
; Nanotechnology:761
; Crystalline Solids:933.1
; Materials Science:951
|
| Scopus记录号 | 2-s2.0-85123798468
|
| 来源库 | Scopus
|
| 引用统计 |
被引频次[WOS]：37
|
| 成果类型 | 期刊论文 |
| 条目标识符 | http://sustech.caswiz.com/handle/2SGJ60CL/277824 |
| 专题 | 工学院_材料科学与工程系 |
| 作者单位 | 1.Department of Mechanical and Aerospace Engineering,The Hong Kong University of Science and Technology,Clear Water Bay,China 2.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China 3.HKUST Shenzhen-Hong Kong Collaborative Innovation Research Institute,FutianShenzhen,China 4.Department of Engineering Mechanics,School of Civil Engineering,Wuhan University,Wuhan,430070,China |
| 第一作者单位 | 材料科学与工程系 |
| 推荐引用方式 GB/T 7714 |
Liang，Dingshan,Wang，Qiuhong,Chu，Kangjie,et al. Ultrahigh cycle fatigue of nanocrystalline NiTi tubes for elastocaloric cooling[J]. Applied Materials Today,2022,26.
|
| APA |
Liang，Dingshan.,Wang，Qiuhong.,Chu，Kangjie.,Chen，Junyu.,Hua，Peng.,...&Sun，Qingping.(2022).Ultrahigh cycle fatigue of nanocrystalline NiTi tubes for elastocaloric cooling.Applied Materials Today,26.
|
| MLA |
Liang，Dingshan,et al."Ultrahigh cycle fatigue of nanocrystalline NiTi tubes for elastocaloric cooling".Applied Materials Today 26(2022).
|
| 条目包含的文件 | 条目无相关文件。 | |||||
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