Hot deformation behaviour and optimization of process parameters for an as-cast Cu–20Ni–20Mn alloy
The hot deformation behaviour of an as-cast Cu–20Ni–20Mn alloy was investigated by isothermal compression tests in a TA-DIL 805 phase change thermal expansion instrument with a temperature ranging from 800 to 950 °C and a strain-rate ranging from 0.001 s−1 to 1 s−1. The results showed that Cu–20Ni–2...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-09-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423023906 |
| _version_ | 1827780359113146368 |
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| author | Jing Xu Xuemao Dong Zhongxue Feng Jialiang Dong Caiju Li Jianhong Yi |
| author_facet | Jing Xu Xuemao Dong Zhongxue Feng Jialiang Dong Caiju Li Jianhong Yi |
| author_sort | Jing Xu |
| collection | DOAJ |
| description | The hot deformation behaviour of an as-cast Cu–20Ni–20Mn alloy was investigated by isothermal compression tests in a TA-DIL 805 phase change thermal expansion instrument with a temperature ranging from 800 to 950 °C and a strain-rate ranging from 0.001 s−1 to 1 s−1. The results showed that Cu–20Ni–20Mn presented a stress drop at the beginning of the strain, and the flow stress decreased with increasing temperature and decreasing of strain rate. In particular, the hot deformation activation energy was determined to be 277.958 kJ/mol. The hot compression constitutive equation was established, and the processing maps of the alloy were constructed. The stress-strain values predicted by the proposed model were coincident with the experimental results, which confirmed that the deformation principal equation gives an accurate and precise estimate of the flow stress in Cu–20Ni–20Mn. The established processing maps and microstructure analysis determined the rolling process parameters in which the optimum range of temperature for the hot-working deformation of the as-cast Cu–20Ni–20Mn alloy is 810–900 °C with a strain rate of 0.001–0.002 s−1. |
| first_indexed | 2024-03-11T15:04:26Z |
| format | Article |
| id | doaj.art-15f37feb14424e58abd43c6e280f9d9f |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-11T15:04:26Z |
| publishDate | 2023-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-15f37feb14424e58abd43c6e280f9d9f2023-10-30T06:05:03ZengElsevierJournal of Materials Research and Technology2238-78542023-09-012693469356Hot deformation behaviour and optimization of process parameters for an as-cast Cu–20Ni–20Mn alloyJing Xu0Xuemao Dong1Zhongxue Feng2Jialiang Dong3Caiju Li4Jianhong Yi5Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093 ChinaFaculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093 ChinaFaculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093 China; Key Laboratory of Nonferrous and Rare Precious Materials of the Ministry of Education, Kunming 650093 China; Key Laboratory of Advanced Materials of Yunnan Province, Kunming 650093 China; Yunnan Engineering Research Center of Metallic Powder Materials, Kunming 650093 China; Corresponding author. Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093 China.School of Materials Science and Engineering, Guizhou Minzu University, Guiyang 550025 China; Corresponding author. School of Materials Science and Engineering, Guizhou Minzu University, Guiyang 550025, ChinaFaculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093 China; Key Laboratory of Nonferrous and Rare Precious Materials of the Ministry of Education, Kunming 650093 China; Key Laboratory of Advanced Materials of Yunnan Province, Kunming 650093 China; Yunnan Engineering Research Center of Metallic Powder Materials, Kunming 650093 ChinaFaculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093 China; Key Laboratory of Nonferrous and Rare Precious Materials of the Ministry of Education, Kunming 650093 China; Key Laboratory of Advanced Materials of Yunnan Province, Kunming 650093 China; Yunnan Engineering Research Center of Metallic Powder Materials, Kunming 650093 ChinaThe hot deformation behaviour of an as-cast Cu–20Ni–20Mn alloy was investigated by isothermal compression tests in a TA-DIL 805 phase change thermal expansion instrument with a temperature ranging from 800 to 950 °C and a strain-rate ranging from 0.001 s−1 to 1 s−1. The results showed that Cu–20Ni–20Mn presented a stress drop at the beginning of the strain, and the flow stress decreased with increasing temperature and decreasing of strain rate. In particular, the hot deformation activation energy was determined to be 277.958 kJ/mol. The hot compression constitutive equation was established, and the processing maps of the alloy were constructed. The stress-strain values predicted by the proposed model were coincident with the experimental results, which confirmed that the deformation principal equation gives an accurate and precise estimate of the flow stress in Cu–20Ni–20Mn. The established processing maps and microstructure analysis determined the rolling process parameters in which the optimum range of temperature for the hot-working deformation of the as-cast Cu–20Ni–20Mn alloy is 810–900 °C with a strain rate of 0.001–0.002 s−1.http://www.sciencedirect.com/science/article/pii/S2238785423023906Cu–20Ni–20Mn alloyHot compression deformationConstitutive equationProcessing maps |
| spellingShingle | Jing Xu Xuemao Dong Zhongxue Feng Jialiang Dong Caiju Li Jianhong Yi Hot deformation behaviour and optimization of process parameters for an as-cast Cu–20Ni–20Mn alloy Journal of Materials Research and Technology Cu–20Ni–20Mn alloy Hot compression deformation Constitutive equation Processing maps |
| title | Hot deformation behaviour and optimization of process parameters for an as-cast Cu–20Ni–20Mn alloy |
| title_full | Hot deformation behaviour and optimization of process parameters for an as-cast Cu–20Ni–20Mn alloy |
| title_fullStr | Hot deformation behaviour and optimization of process parameters for an as-cast Cu–20Ni–20Mn alloy |
| title_full_unstemmed | Hot deformation behaviour and optimization of process parameters for an as-cast Cu–20Ni–20Mn alloy |
| title_short | Hot deformation behaviour and optimization of process parameters for an as-cast Cu–20Ni–20Mn alloy |
| title_sort | hot deformation behaviour and optimization of process parameters for an as cast cu 20ni 20mn alloy |
| topic | Cu–20Ni–20Mn alloy Hot compression deformation Constitutive equation Processing maps |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423023906 |
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