| Experimental investigation of a Portevin-Le Chatelier band in Ni-Co-based superalloys in relation to gamma' precipitates at 500 degrees C | |
| Liu, Yanke1; Cai, Yulong1; Tian, Chenggang2; Zhang, Guoliang2; Han, Guoming3; Fu, Shihua1,4; Cui, Chuanyong2; Zhang, Qingchuan1 | |
| Corresponding Author | Cui, Chuanyong(chycui@imr.ac.cn) ; Zhang, Qingchuan(zhangqc@ustc.edu.cn) |
| 2020-07-15 | |
| Source Publication | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| ISSN | 1005-0302 |
| Volume | 49Pages:35-41 |
| Abstract | The macroscopically localized deformation behaviors of Ni-Co-based superalloys with different gamma' precipitate content were investigated at 500 degrees C and 1 x 10(-4) s(-1) via an in situ method namely, digital image correlation (DIC). The DIC results showed that the serrated flow of the stress-strain curves was accompanied by localized deformation of the specimens. The fracture morphology was characterized mainly by transgranular fracture with numerous dimples in the low gamma' content alloy, and intergranular fracture with large fracture section in the high gamma' content alloy. The Portevin-Le Chatelier (PLC) effect occurred in the investigated Ni-Co-based superalloys. Furthermore, the localized deformation of the high gamma' content alloy was more severe than that of the low gamma' content alloy, and the band width was slightly larger. Moreover, for the first-time ever, a special propagation feature, namely +/- 60 degrees zigzag bands characterized by head-to-tail connections, was observed in the high gamma' content alloy. (C) 2020 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| Keyword | gamma' Precipitate Ni-Co-based superalloy Dynamic strain aging Portevin-Le Chatelier effect Digital image correlation |
| Funding Organization | National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences |
| DOI | 10.1016/j.jmst.2020.02.001 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[11335010] ; National Natural Science Foundation of China[51271174] ; National Natural Science Foundation of China[11802080] ; National Natural Science Foundation of China[11627803] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040502] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000537326300005 |
| Publisher | JOURNAL MATER SCI TECHNOL |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/139190 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Cui, Chuanyong; Zhang, Qingchuan |
| Affiliation | 1.Univ Sci & Technol China, CAS Key Lab Mech Behav & Design Mat, Hefei 230027, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Superalloy Div, Shenyang 110016, Peoples R China 3.AVIC Commercial Aircraft Engine Co Ltd, Shanghai 201108, Peoples R China 4.Hainan Univ, Haikou 570228, Hainan, Peoples R China |
| Recommended Citation GB/T 7714 | Liu, Yanke,Cai, Yulong,Tian, Chenggang,et al. Experimental investigation of a Portevin-Le Chatelier band in Ni-Co-based superalloys in relation to gamma' precipitates at 500 degrees C[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2020,49:35-41. |
| APA | Liu, Yanke.,Cai, Yulong.,Tian, Chenggang.,Zhang, Guoliang.,Han, Guoming.,...&Zhang, Qingchuan.(2020).Experimental investigation of a Portevin-Le Chatelier band in Ni-Co-based superalloys in relation to gamma' precipitates at 500 degrees C.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,49,35-41. |
| MLA | Liu, Yanke,et al."Experimental investigation of a Portevin-Le Chatelier band in Ni-Co-based superalloys in relation to gamma' precipitates at 500 degrees C".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 49(2020):35-41. |
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