| Tensile Plasticity of Miniature Specimens for a Low Alloy Steel Investigated by Digital Image Correlation Technique | |
| Yang, Wen-Ke1,2; Wang, Li-Yi1,2; Song, Zhu-Man1; Luo, Xue-Mei1; Zhang, Guang-Ping1 | |
| Corresponding Author | Zhang, Guang-Ping(gpzhang@imr.ac.cn) |
| 2021-04-16 | |
| Source Publication | STEEL RESEARCH INTERNATIONAL
 |
| ISSN | 1611-3683 |
| Pages | 12 |
| Abstract | Miniature specimens are widely being used to determine tensile properties of various size-limited new materials, especially quickly evaluate or monitor changes in mechanical properties of in-service reactor components to ensure their continuous operation with large safe margins. Although tensile properties of the miniature specimens are investigated extensively, the basic mechanism on such size effects, especially tensile plasticity, is not understood well. Here, tensile properties of A588 low alloy steel specimens with different gauge lengths and thicknesses are systematically investigated in situ using the digital image correlation technique. The findings reveal that the increase in the post-necking elongation with decreasing the specimen gauge length and the decrease with decreasing the specimen thickness are due to the scale-dependent strain-rate sensitivity, whereas the constant uniform elongation is attributed to the stable strain hardening exponent. An empirical formula on the relationship between the total elongation and the strain-rate sensitivity is proposed to describe the basic mechanism behind the specimen size-dependent elongation. |
| Keyword | digital image correlation elongation size effects tensile properties |
| Funding Organization | National Natural Science Foundation of China (NSFC) ; Fundamental Research Project of Shenyang National Laboratory for Materials Science |
| DOI | 10.1002/srin.202000685 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China (NSFC)[51771207] ; Fundamental Research Project of Shenyang National Laboratory for Materials Science[L2019R18] |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000640713900001 |
| Publisher | WILEY-V C H VERLAG GMBH |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/162166 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Zhang, Guang-Ping |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Yang, Wen-Ke,Wang, Li-Yi,Song, Zhu-Man,et al. Tensile Plasticity of Miniature Specimens for a Low Alloy Steel Investigated by Digital Image Correlation Technique[J]. STEEL RESEARCH INTERNATIONAL,2021:12. |
| APA | Yang, Wen-Ke,Wang, Li-Yi,Song, Zhu-Man,Luo, Xue-Mei,&Zhang, Guang-Ping.(2021).Tensile Plasticity of Miniature Specimens for a Low Alloy Steel Investigated by Digital Image Correlation Technique.STEEL RESEARCH INTERNATIONAL,12. |
| MLA | Yang, Wen-Ke,et al."Tensile Plasticity of Miniature Specimens for a Low Alloy Steel Investigated by Digital Image Correlation Technique".STEEL RESEARCH INTERNATIONAL (2021):12. |
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