Cryogenic temperature toughening and strengthening due to gradient phase structure
文献类型：期刊论文
| 作者 | Ma ZW ; Ren Y; Li RG; Wang YD; Zhou LL; Wu XL(武晓雷); Wei YJ(魏宇杰); Gao HJ(高华健)
|
| 刊名 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| 出版日期 | 2018-01-18 |
| 卷号 | 712页码:358-364 |
| 关键词 | Cryogenic Toughening Strengthening Gradient Synchrotron high-energy X-ray diffraction |
| ISSN号 | 0921-5093 |
| DOI | 10.1016/j.msea.2017.11.107 |
| 英文摘要 | Cold embrittlement is one of the primary concerns challenging the usage of steels in infrastructures like pipelines and ocean platforms. This challenge is also compounded by the limited selection of materials for application in a cold and corrosive environment. Inspired by recent progresses in developing gradient structured materials with extraordinary properties, here we report a class of stainless steels with gradient phase structures achieving a superb combination of strength (1753 MPa) and tensile ductility (> 25%) at the cryogenic temperature of 77 K. A set of cylindrical steel samples acquire a graded mixture of hard martensitic and soft austenitic phases through pre-torsion, which results in an optimal stress partition in the material - the hard martensitic structures showing a positive density gradient from core to edge carry higher stress near the edge, while the soft austenitic phase showing a negative density gradient from core to edge serves to retain substantial tensile ductility. The phase transformation at low temperature in gradient structures and the resulted work-hardening could be adopted to enhance the ductility and strength of widely used engineering materials for their applications in harsh environment. |
| 分类号 | 一类 |
| URL标识 | 查看原文 |
| WOS关键词 | METALLIC MATERIALS ; STAINLESS-STEEL ; DEFORMATION ; DUCTILITY ; ALLOY ; DEPENDENCE ; RESISTANCE ; TOUGHNESS ; GLASSES |
| WOS研究方向 | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000423892500039 |
| 资助机构 | National Natural Science Foundation of China (NSFC) [11425211, 51231002] ; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357] |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/77793]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China 2.Argonne Natl Lab, Adv Photon Source, 9700 S Cass Ave, Argonne, IL 60439 USA 3.Univ Sci & Technol, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China 4.Brown Univ, Sch Engn, Providence, RI 02912 USA 5.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma ZW,Ren Y,Li RG,et al. Cryogenic temperature toughening and strengthening due to gradient phase structure[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2018,712:358-364. |
| APA | Ma ZW.,Ren Y.,Li RG.,Wang YD.,Zhou LL.,...&高华健.(2018).Cryogenic temperature toughening and strengthening due to gradient phase structure.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,712,358-364. |
| MLA | Ma ZW,et al."Cryogenic temperature toughening and strengthening due to gradient phase structure".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 712(2018):358-364. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。