Synergism between coherent precipitation strengthening and FCC-HCP type transformation-induced plasticity
It is becoming a trend that many strengthening methods are applied at the same time to overcome the strength-ductility trade-off. However, the combination of precipitation strengthening and transformation-induced plasticity (TRIP) is rarely used effectively because precipitates will hinder phase tra...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-11-01
|
| Series: | Materials & Design |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127522008346 |
| _version_ | 1797991337367175168 |
|---|---|
| author | Dong Huang Yanxin Zhuang |
| author_facet | Dong Huang Yanxin Zhuang |
| author_sort | Dong Huang |
| collection | DOAJ |
| description | It is becoming a trend that many strengthening methods are applied at the same time to overcome the strength-ductility trade-off. However, the combination of precipitation strengthening and transformation-induced plasticity (TRIP) is rarely used effectively because precipitates will hinder phase transformation. In this work, the coherent precipitation strengthening of L12 phase and Face-Centered Cubic (FCC) - Hexagonal Close-Packed (HCP) type martensitic transformation are combined in a single alloy. With the synergistic effect of both sides, the yield strength of aged Co52Cr30Ni12Al3Ti3 alloy is increased from 437 MPa (annealed alloy with TRIP effect only) to 715 MPa, while retaining a uniform elongation of more than 50% at room temperature. Further research shows that whether L12 phase exist will directly affect its deformation mode. In the tensile process of aged Co52Cr30Ni12Al3Ti3 alloy, the deformation mode of grains without L12 phase will change from previous stacking fault-predominant deformation to the final transformation-induced plasticity. For the regions where L12 phase exists, martensitic transformation is difficult to occur due to the blocking effect of L12 on stacking fault. |
| first_indexed | 2024-04-11T08:50:32Z |
| format | Article |
| id | doaj.art-49f1df6490a1499f8a5aa9d99b5c0795 |
| institution | Directory Open Access Journal |
| issn | 0264-1275 |
| language | English |
| last_indexed | 2024-04-11T08:50:32Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj.art-49f1df6490a1499f8a5aa9d99b5c07952022-12-22T04:33:35ZengElsevierMaterials & Design0264-12752022-11-01223111212Synergism between coherent precipitation strengthening and FCC-HCP type transformation-induced plasticityDong Huang0Yanxin Zhuang1Key Laboratory of Electromagnetic Processing of Materials (Ministry of Education), Northeastern University, Shenyang 110819, China; School of Materials Science and Engineering, Northeastern University, Shenyang 110819, ChinaCorresponding author.; Key Laboratory of Electromagnetic Processing of Materials (Ministry of Education), Northeastern University, Shenyang 110819, China; School of Materials Science and Engineering, Northeastern University, Shenyang 110819, ChinaIt is becoming a trend that many strengthening methods are applied at the same time to overcome the strength-ductility trade-off. However, the combination of precipitation strengthening and transformation-induced plasticity (TRIP) is rarely used effectively because precipitates will hinder phase transformation. In this work, the coherent precipitation strengthening of L12 phase and Face-Centered Cubic (FCC) - Hexagonal Close-Packed (HCP) type martensitic transformation are combined in a single alloy. With the synergistic effect of both sides, the yield strength of aged Co52Cr30Ni12Al3Ti3 alloy is increased from 437 MPa (annealed alloy with TRIP effect only) to 715 MPa, while retaining a uniform elongation of more than 50% at room temperature. Further research shows that whether L12 phase exist will directly affect its deformation mode. In the tensile process of aged Co52Cr30Ni12Al3Ti3 alloy, the deformation mode of grains without L12 phase will change from previous stacking fault-predominant deformation to the final transformation-induced plasticity. For the regions where L12 phase exists, martensitic transformation is difficult to occur due to the blocking effect of L12 on stacking fault.http://www.sciencedirect.com/science/article/pii/S0264127522008346High entropy alloysTransformation-induced plasticityPrecipitation strengtheningStacking fault energy |
| spellingShingle | Dong Huang Yanxin Zhuang Synergism between coherent precipitation strengthening and FCC-HCP type transformation-induced plasticity Materials & Design High entropy alloys Transformation-induced plasticity Precipitation strengthening Stacking fault energy |
| title | Synergism between coherent precipitation strengthening and FCC-HCP type transformation-induced plasticity |
| title_full | Synergism between coherent precipitation strengthening and FCC-HCP type transformation-induced plasticity |
| title_fullStr | Synergism between coherent precipitation strengthening and FCC-HCP type transformation-induced plasticity |
| title_full_unstemmed | Synergism between coherent precipitation strengthening and FCC-HCP type transformation-induced plasticity |
| title_short | Synergism between coherent precipitation strengthening and FCC-HCP type transformation-induced plasticity |
| title_sort | synergism between coherent precipitation strengthening and fcc hcp type transformation induced plasticity |
| topic | High entropy alloys Transformation-induced plasticity Precipitation strengthening Stacking fault energy |
| url | http://www.sciencedirect.com/science/article/pii/S0264127522008346 |
| work_keys_str_mv | AT donghuang synergismbetweencoherentprecipitationstrengtheningandfcchcptypetransformationinducedplasticity AT yanxinzhuang synergismbetweencoherentprecipitationstrengtheningandfcchcptypetransformationinducedplasticity |