Microstructure and Strengthening Model of Cu–Fe In-Situ Composites
The tensile strength evolution and strengthening mechanism of Cu–Fe in-situ composites were investigated using both experiments and theoretical analysis. Experimentally, the tensile strength evolution of the in-situ composites with a cold deformation strain was studied using the model alloys Cu–11Fe...
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MDPI AG
2020-08-01
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| Online Access: | https://www.mdpi.com/1996-1944/13/16/3464 |
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| author | Keming Liu Xiaochun Sheng Qingpeng Li Mengcheng Zhang Ningle Han Guangyu He Jin Zou Wei Chen Andrej Atrens |
| author_facet | Keming Liu Xiaochun Sheng Qingpeng Li Mengcheng Zhang Ningle Han Guangyu He Jin Zou Wei Chen Andrej Atrens |
| author_sort | Keming Liu |
| collection | DOAJ |
| description | The tensile strength evolution and strengthening mechanism of Cu–Fe in-situ composites were investigated using both experiments and theoretical analysis. Experimentally, the tensile strength evolution of the in-situ composites with a cold deformation strain was studied using the model alloys Cu–11Fe, Cu–14Fe, and Cu–17Fe, and the effect of the strain on the matrix of the in-situ composites was studied using the model alloys Cu–3Fe and Cu–4.3Fe. The tensile strength was related to the microstructure and to the theoretical strengthening mechanisms. Based on these experimental data and theoretical insights, a mathematical model was established for the dependence of the tensile strength on the cold deformation strain. For low cold deformation strains, the strengthening mechanism was mainly work hardening, solid solution, and precipitation strengthening. Tensile strength can be estimated using an improved rule of mixtures. For high cold deformation strains, the strengthening mechanism was mainly filament strengthening. Tensile strength can be estimated using an improved Hall–Petch relation. |
| first_indexed | 2024-03-10T17:54:06Z |
| format | Article |
| id | doaj.art-b2a4086c31644216b1cde647339c8c61 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T17:54:06Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-b2a4086c31644216b1cde647339c8c612023-11-20T09:16:42ZengMDPI AGMaterials1996-19442020-08-011316346410.3390/ma13163464Microstructure and Strengthening Model of Cu–Fe In-Situ CompositesKeming Liu0Xiaochun Sheng1Qingpeng Li2Mengcheng Zhang3Ningle Han4Guangyu He5Jin Zou6Wei Chen7Andrej Atrens8Jiangxi Key Laboratory for Precision Actuation and Control, Nanchang Institute of Technology, Nanchang 330099, ChinaJiangxi Key Laboratory for Precision Actuation and Control, Nanchang Institute of Technology, Nanchang 330099, ChinaNanchang Electric Power Supply Company, State Grid, Nanchang 330012, ChinaJiangxi Key Laboratory for Precision Actuation and Control, Nanchang Institute of Technology, Nanchang 330099, ChinaJiangxi Key Laboratory for Precision Actuation and Control, Nanchang Institute of Technology, Nanchang 330099, ChinaJiangxi Key Laboratory for Precision Actuation and Control, Nanchang Institute of Technology, Nanchang 330099, ChinaInstitute of Applied Physics, Jiangxi Academy of Sciences, Nanchang 330096, ChinaInstitute of Applied Physics, Jiangxi Academy of Sciences, Nanchang 330096, ChinaCentre for Advanced Materials Processing and Manufacturing, The University of Queensland, Brisbane, QLD 4072, AustraliaThe tensile strength evolution and strengthening mechanism of Cu–Fe in-situ composites were investigated using both experiments and theoretical analysis. Experimentally, the tensile strength evolution of the in-situ composites with a cold deformation strain was studied using the model alloys Cu–11Fe, Cu–14Fe, and Cu–17Fe, and the effect of the strain on the matrix of the in-situ composites was studied using the model alloys Cu–3Fe and Cu–4.3Fe. The tensile strength was related to the microstructure and to the theoretical strengthening mechanisms. Based on these experimental data and theoretical insights, a mathematical model was established for the dependence of the tensile strength on the cold deformation strain. For low cold deformation strains, the strengthening mechanism was mainly work hardening, solid solution, and precipitation strengthening. Tensile strength can be estimated using an improved rule of mixtures. For high cold deformation strains, the strengthening mechanism was mainly filament strengthening. Tensile strength can be estimated using an improved Hall–Petch relation.https://www.mdpi.com/1996-1944/13/16/3464microstructurestrengthevolutionmodelin-situ compositeCu–Fe |
| spellingShingle | Keming Liu Xiaochun Sheng Qingpeng Li Mengcheng Zhang Ningle Han Guangyu He Jin Zou Wei Chen Andrej Atrens Microstructure and Strengthening Model of Cu–Fe In-Situ Composites Materials microstructure strength evolution model in-situ composite Cu–Fe |
| title | Microstructure and Strengthening Model of Cu–Fe In-Situ Composites |
| title_full | Microstructure and Strengthening Model of Cu–Fe In-Situ Composites |
| title_fullStr | Microstructure and Strengthening Model of Cu–Fe In-Situ Composites |
| title_full_unstemmed | Microstructure and Strengthening Model of Cu–Fe In-Situ Composites |
| title_short | Microstructure and Strengthening Model of Cu–Fe In-Situ Composites |
| title_sort | microstructure and strengthening model of cu fe in situ composites |
| topic | microstructure strength evolution model in-situ composite Cu–Fe |
| url | https://www.mdpi.com/1996-1944/13/16/3464 |
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