Study on aging strengthening and nano precipitates of Cu–Ni–Mn–Fe alloy
This paper presents a systematic study of the precipitation strengthening mechanism in polybasic Cu–Ni–Mn–Fe alloy. The effect of aging treatment on the microstructure, morphologies and phase transition of the Cu–Ni–Mn–Fe alloy were analyzed and discussed using scanning electron microscope (SEM), tr...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2020-01-01
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| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/ab8b1d |
| _version_ | 1797746424230707200 |
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| author | Juntao Zou Lin Shi Hao Shi Qiaoli Feng Shuhua Liang |
| author_facet | Juntao Zou Lin Shi Hao Shi Qiaoli Feng Shuhua Liang |
| author_sort | Juntao Zou |
| collection | DOAJ |
| description | This paper presents a systematic study of the precipitation strengthening mechanism in polybasic Cu–Ni–Mn–Fe alloy. The effect of aging treatment on the microstructure, morphologies and phase transition of the Cu–Ni–Mn–Fe alloy were analyzed and discussed using scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray diffraction (XRD) and differential scanning calorimeter (DSC), respectively. The θ-MnNi precipitates with a size of 50–100 nm, mainly formed during aging, were considered as the source of the aging strengthening. In addition, there is a semi-coherent between the plane (111) of the θ-MnNi precipitates and the plane (200) of the α -Cu matrix. The density of θ-MnNi precipitates increases with the increase of the aging time. The hardness, yield strength and ultimate tensile strength of the aged alloy increase from 127 to 366HB, 217 to 788 MPa, and 433 to 842 MPa, respectively, which is attributed to precipitation strengthening. |
| first_indexed | 2024-03-12T15:36:36Z |
| format | Article |
| id | doaj.art-b2eaa591b6654c5e9323c1fe91c50fec |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:36:36Z |
| publishDate | 2020-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-b2eaa591b6654c5e9323c1fe91c50fec2023-08-09T16:12:01ZengIOP PublishingMaterials Research Express2053-15912020-01-017505650410.1088/2053-1591/ab8b1dStudy on aging strengthening and nano precipitates of Cu–Ni–Mn–Fe alloyJuntao Zou0https://orcid.org/0000-0002-0117-2854Lin Shi1Hao Shi2Qiaoli Feng3Shuhua Liang4Shaanxi Key Laboratory of Electrical Materials and Infiltration Technology, School of Materials Science and Engineering, Xi’an University of Technology , Xi’an 710048, People’s Republic of ChinaShaanxi Key Laboratory of Electrical Materials and Infiltration Technology, School of Materials Science and Engineering, Xi’an University of Technology , Xi’an 710048, People’s Republic of ChinaShaanxi Key Laboratory of Electrical Materials and Infiltration Technology, School of Materials Science and Engineering, Xi’an University of Technology , Xi’an 710048, People’s Republic of ChinaShaanxi Key Laboratory of Electrical Materials and Infiltration Technology, School of Materials Science and Engineering, Xi’an University of Technology , Xi’an 710048, People’s Republic of ChinaShaanxi Key Laboratory of Electrical Materials and Infiltration Technology, School of Materials Science and Engineering, Xi’an University of Technology , Xi’an 710048, People’s Republic of ChinaThis paper presents a systematic study of the precipitation strengthening mechanism in polybasic Cu–Ni–Mn–Fe alloy. The effect of aging treatment on the microstructure, morphologies and phase transition of the Cu–Ni–Mn–Fe alloy were analyzed and discussed using scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray diffraction (XRD) and differential scanning calorimeter (DSC), respectively. The θ-MnNi precipitates with a size of 50–100 nm, mainly formed during aging, were considered as the source of the aging strengthening. In addition, there is a semi-coherent between the plane (111) of the θ-MnNi precipitates and the plane (200) of the α -Cu matrix. The density of θ-MnNi precipitates increases with the increase of the aging time. The hardness, yield strength and ultimate tensile strength of the aged alloy increase from 127 to 366HB, 217 to 788 MPa, and 433 to 842 MPa, respectively, which is attributed to precipitation strengthening.https://doi.org/10.1088/2053-1591/ab8b1dCu–Ni–Mn–Fe alloyaging strengtheningmechanical propertiesθ-MnNi precipitates |
| spellingShingle | Juntao Zou Lin Shi Hao Shi Qiaoli Feng Shuhua Liang Study on aging strengthening and nano precipitates of Cu–Ni–Mn–Fe alloy Materials Research Express Cu–Ni–Mn–Fe alloy aging strengthening mechanical properties θ-MnNi precipitates |
| title | Study on aging strengthening and nano precipitates of Cu–Ni–Mn–Fe alloy |
| title_full | Study on aging strengthening and nano precipitates of Cu–Ni–Mn–Fe alloy |
| title_fullStr | Study on aging strengthening and nano precipitates of Cu–Ni–Mn–Fe alloy |
| title_full_unstemmed | Study on aging strengthening and nano precipitates of Cu–Ni–Mn–Fe alloy |
| title_short | Study on aging strengthening and nano precipitates of Cu–Ni–Mn–Fe alloy |
| title_sort | study on aging strengthening and nano precipitates of cu ni mn fe alloy |
| topic | Cu–Ni–Mn–Fe alloy aging strengthening mechanical properties θ-MnNi precipitates |
| url | https://doi.org/10.1088/2053-1591/ab8b1d |
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