Precipitation behavior of a new Cu-Ni-Co-Si-Fe-Mg alloy designed with low cobalt content
A new Cu-1.5Ni-0.7Co-0.7Si-0.3Fe-0.1Mg alloy with low cobalt content was designed. Multi-stage thermo-mechanical treatment (MTT) was used to produce the high-performance alloy with hardness of 286 HV, yield strength of 858 MPa, tensile strength of 910 MPa and electrical conductivity of 45.4 % IACS....
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-04-01
|
| Series: | Materials & Design |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127524002053 |
| _version_ | 1797214972683485184 |
|---|---|
| author | Liu-xin Qin Tao Zhou Xu Wang Yan-bin Jiang Feng Liu Zhu Xiao Qian Lei Yan-lin Jia Yi Luo Zhou Li |
| author_facet | Liu-xin Qin Tao Zhou Xu Wang Yan-bin Jiang Feng Liu Zhu Xiao Qian Lei Yan-lin Jia Yi Luo Zhou Li |
| author_sort | Liu-xin Qin |
| collection | DOAJ |
| description | A new Cu-1.5Ni-0.7Co-0.7Si-0.3Fe-0.1Mg alloy with low cobalt content was designed. Multi-stage thermo-mechanical treatment (MTT) was used to produce the high-performance alloy with hardness of 286 HV, yield strength of 858 MPa, tensile strength of 910 MPa and electrical conductivity of 45.4 % IACS. The addition of 0.3 wt% Fe element dissolved in (Ni,Co)2Si resulted in the formation of the orthorhombic δ-(Ni,Co,Fe)2Si. During MTT, the δ-(Ni,Co,Fe)2Si, (Ni,Co)2Si, β-Ni3Si, and Fe2Si precipitated successively near the deformation microstructure. Transmission electron microscope observations indicated that the δ-(Ni,Co,Fe)2Si precipitates showed disc-like and rod-like shapes at different orientations, respectively. A new resource-saving, high-strength and medium-conductivity Cu-Ni-Co-Si-Fe-Mg alloy was prepared by replacing an equal amount of Co element with 0.3 wt% Fe element, reducing the amount of scarce metal Co in the alloy. |
| first_indexed | 2024-04-24T11:22:40Z |
| format | Article |
| id | doaj.art-a35b990282a049a9bad8b5b51a2b639b |
| institution | Directory Open Access Journal |
| issn | 0264-1275 |
| language | English |
| last_indexed | 2024-04-24T11:22:40Z |
| publishDate | 2024-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj.art-a35b990282a049a9bad8b5b51a2b639b2024-04-11T04:40:41ZengElsevierMaterials & Design0264-12752024-04-01240112833Precipitation behavior of a new Cu-Ni-Co-Si-Fe-Mg alloy designed with low cobalt contentLiu-xin Qin0Tao Zhou1Xu Wang2Yan-bin Jiang3Feng Liu4Zhu Xiao5Qian Lei6Yan-lin Jia7Yi Luo8Zhou Li9School of Materials Science and Engineering, Central South University, Changsha 410083, ChinaSchool of Materials Science and Engineering, Central South University, Changsha 410083, ChinaSchool of Materials Science and Engineering, Central South University, Changsha 410083, ChinaSchool of Materials Science and Engineering, Central South University, Changsha 410083, China; State Key Lab for Powder Metallurgy, Central South University, Changsha 410083, China; Corresponding author at: State Key Lab for Powder Metallurgy, Central South University, Changsha 410083, China.Ning Bo XingYe ShengTai Group Co., Ltd., Ningbo 315336, ChinaSchool of Materials Science and Engineering, Central South University, Changsha 410083, ChinaState Key Lab for Powder Metallurgy, Central South University, Changsha 410083, ChinaState Key Lab for Powder Metallurgy, Central South University, Changsha 410083, ChinaNing Bo XingYe ShengTai Group Co., Ltd., Ningbo 315336, ChinaSchool of Materials Science and Engineering, Central South University, Changsha 410083, China; State Key Lab for Powder Metallurgy, Central South University, Changsha 410083, ChinaA new Cu-1.5Ni-0.7Co-0.7Si-0.3Fe-0.1Mg alloy with low cobalt content was designed. Multi-stage thermo-mechanical treatment (MTT) was used to produce the high-performance alloy with hardness of 286 HV, yield strength of 858 MPa, tensile strength of 910 MPa and electrical conductivity of 45.4 % IACS. The addition of 0.3 wt% Fe element dissolved in (Ni,Co)2Si resulted in the formation of the orthorhombic δ-(Ni,Co,Fe)2Si. During MTT, the δ-(Ni,Co,Fe)2Si, (Ni,Co)2Si, β-Ni3Si, and Fe2Si precipitated successively near the deformation microstructure. Transmission electron microscope observations indicated that the δ-(Ni,Co,Fe)2Si precipitates showed disc-like and rod-like shapes at different orientations, respectively. A new resource-saving, high-strength and medium-conductivity Cu-Ni-Co-Si-Fe-Mg alloy was prepared by replacing an equal amount of Co element with 0.3 wt% Fe element, reducing the amount of scarce metal Co in the alloy.http://www.sciencedirect.com/science/article/pii/S0264127524002053Resource-saving alloyCobalt alternative(Ni,Co,Fe)2SiPrecipitation behaviorThermodynamic analysisMicrostructure and properties |
| spellingShingle | Liu-xin Qin Tao Zhou Xu Wang Yan-bin Jiang Feng Liu Zhu Xiao Qian Lei Yan-lin Jia Yi Luo Zhou Li Precipitation behavior of a new Cu-Ni-Co-Si-Fe-Mg alloy designed with low cobalt content Materials & Design Resource-saving alloy Cobalt alternative (Ni,Co,Fe)2Si Precipitation behavior Thermodynamic analysis Microstructure and properties |
| title | Precipitation behavior of a new Cu-Ni-Co-Si-Fe-Mg alloy designed with low cobalt content |
| title_full | Precipitation behavior of a new Cu-Ni-Co-Si-Fe-Mg alloy designed with low cobalt content |
| title_fullStr | Precipitation behavior of a new Cu-Ni-Co-Si-Fe-Mg alloy designed with low cobalt content |
| title_full_unstemmed | Precipitation behavior of a new Cu-Ni-Co-Si-Fe-Mg alloy designed with low cobalt content |
| title_short | Precipitation behavior of a new Cu-Ni-Co-Si-Fe-Mg alloy designed with low cobalt content |
| title_sort | precipitation behavior of a new cu ni co si fe mg alloy designed with low cobalt content |
| topic | Resource-saving alloy Cobalt alternative (Ni,Co,Fe)2Si Precipitation behavior Thermodynamic analysis Microstructure and properties |
| url | http://www.sciencedirect.com/science/article/pii/S0264127524002053 |
| work_keys_str_mv | AT liuxinqin precipitationbehaviorofanewcunicosifemgalloydesignedwithlowcobaltcontent AT taozhou precipitationbehaviorofanewcunicosifemgalloydesignedwithlowcobaltcontent AT xuwang precipitationbehaviorofanewcunicosifemgalloydesignedwithlowcobaltcontent AT yanbinjiang precipitationbehaviorofanewcunicosifemgalloydesignedwithlowcobaltcontent AT fengliu precipitationbehaviorofanewcunicosifemgalloydesignedwithlowcobaltcontent AT zhuxiao precipitationbehaviorofanewcunicosifemgalloydesignedwithlowcobaltcontent AT qianlei precipitationbehaviorofanewcunicosifemgalloydesignedwithlowcobaltcontent AT yanlinjia precipitationbehaviorofanewcunicosifemgalloydesignedwithlowcobaltcontent AT yiluo precipitationbehaviorofanewcunicosifemgalloydesignedwithlowcobaltcontent AT zhouli precipitationbehaviorofanewcunicosifemgalloydesignedwithlowcobaltcontent |