Solute segregation and nanoparticle dispersion induced super high stability in a bulk nanocrystalline W-based alloy
Improvement of the stability of nanocrystalline (NC) materials is always a challenge. In this paper, the high thermal stability is achieved in a representative NC W alloy by combining nano-segregation of Ti solute to W grain boundary (GBs), and in-situ formation of nano Ti–Zr–O particles, which prov...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-09-01
|
| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423017660 |
| _version_ | 1797646754053619712 |
|---|---|
| author | T. Zhang H.W. Deng Z.M. Xie Y.W. Zhuang S.Y. Peng G. Hu H. Lin |
| author_facet | T. Zhang H.W. Deng Z.M. Xie Y.W. Zhuang S.Y. Peng G. Hu H. Lin |
| author_sort | T. Zhang |
| collection | DOAJ |
| description | Improvement of the stability of nanocrystalline (NC) materials is always a challenge. In this paper, the high thermal stability is achieved in a representative NC W alloy by combining nano-segregation of Ti solute to W grain boundary (GBs), and in-situ formation of nano Ti–Zr–O particles, which provide both thermodynamic and kinetic stabilization effects through solute dragging and particle pinning. The recrystallization temperature of this bulk NC W alloy reaches up to 1600 °C, and these nanometric microstructures maintain stable under a long-time and high-temperature ordeal up to 1200 °C for 120 h. And its microhardness and micro-compressive yield strength are ∼17.0 and 5.14 GPa, respectively. In addition, this bulk NC W alloy has high irradiation stability due to the high densities of stabled GBs and phase boundaries. This work demonstrates the possibility of attaining high-stability bulk NC materials in terms of segregation of solutes at GBs and in-situ formation of ultrafine nanoparticles with a coherent interface with the W matrix. |
| first_indexed | 2024-03-11T15:07:19Z |
| format | Article |
| id | doaj.art-eac62fee43a0411984301753250968a1 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-11T15:07:19Z |
| publishDate | 2023-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-eac62fee43a0411984301753250968a12023-10-30T06:02:53ZengElsevierJournal of Materials Research and Technology2238-78542023-09-012622422253Solute segregation and nanoparticle dispersion induced super high stability in a bulk nanocrystalline W-based alloyT. Zhang0H.W. Deng1Z.M. Xie2Y.W. Zhuang3S.Y. Peng4G. Hu5H. Lin6School of Physics and Material Sciences, GuangZhou University, Guangzhou, Guangdong, China; Corresponding author.School of Physics and Material Sciences, GuangZhou University, Guangzhou, Guangdong, ChinaKey Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China; Corresponding author.School of Physics and Material Sciences, GuangZhou University, Guangzhou, Guangdong, ChinaSchool of Physics and Material Sciences, GuangZhou University, Guangzhou, Guangdong, ChinaSchool of Physics and Material Sciences, GuangZhou University, Guangzhou, Guangdong, ChinaSchool of Physics and Material Sciences, GuangZhou University, Guangzhou, Guangdong, ChinaImprovement of the stability of nanocrystalline (NC) materials is always a challenge. In this paper, the high thermal stability is achieved in a representative NC W alloy by combining nano-segregation of Ti solute to W grain boundary (GBs), and in-situ formation of nano Ti–Zr–O particles, which provide both thermodynamic and kinetic stabilization effects through solute dragging and particle pinning. The recrystallization temperature of this bulk NC W alloy reaches up to 1600 °C, and these nanometric microstructures maintain stable under a long-time and high-temperature ordeal up to 1200 °C for 120 h. And its microhardness and micro-compressive yield strength are ∼17.0 and 5.14 GPa, respectively. In addition, this bulk NC W alloy has high irradiation stability due to the high densities of stabled GBs and phase boundaries. This work demonstrates the possibility of attaining high-stability bulk NC materials in terms of segregation of solutes at GBs and in-situ formation of ultrafine nanoparticles with a coherent interface with the W matrix.http://www.sciencedirect.com/science/article/pii/S2238785423017660Super high thermal stabilityIrradiation resistance stabilityGrain boundary segregationIn-situ formation of nanoprecipitationW-based alloys |
| spellingShingle | T. Zhang H.W. Deng Z.M. Xie Y.W. Zhuang S.Y. Peng G. Hu H. Lin Solute segregation and nanoparticle dispersion induced super high stability in a bulk nanocrystalline W-based alloy Journal of Materials Research and Technology Super high thermal stability Irradiation resistance stability Grain boundary segregation In-situ formation of nanoprecipitation W-based alloys |
| title | Solute segregation and nanoparticle dispersion induced super high stability in a bulk nanocrystalline W-based alloy |
| title_full | Solute segregation and nanoparticle dispersion induced super high stability in a bulk nanocrystalline W-based alloy |
| title_fullStr | Solute segregation and nanoparticle dispersion induced super high stability in a bulk nanocrystalline W-based alloy |
| title_full_unstemmed | Solute segregation and nanoparticle dispersion induced super high stability in a bulk nanocrystalline W-based alloy |
| title_short | Solute segregation and nanoparticle dispersion induced super high stability in a bulk nanocrystalline W-based alloy |
| title_sort | solute segregation and nanoparticle dispersion induced super high stability in a bulk nanocrystalline w based alloy |
| topic | Super high thermal stability Irradiation resistance stability Grain boundary segregation In-situ formation of nanoprecipitation W-based alloys |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423017660 |
| work_keys_str_mv | AT tzhang solutesegregationandnanoparticledispersioninducedsuperhighstabilityinabulknanocrystallinewbasedalloy AT hwdeng solutesegregationandnanoparticledispersioninducedsuperhighstabilityinabulknanocrystallinewbasedalloy AT zmxie solutesegregationandnanoparticledispersioninducedsuperhighstabilityinabulknanocrystallinewbasedalloy AT ywzhuang solutesegregationandnanoparticledispersioninducedsuperhighstabilityinabulknanocrystallinewbasedalloy AT sypeng solutesegregationandnanoparticledispersioninducedsuperhighstabilityinabulknanocrystallinewbasedalloy AT ghu solutesegregationandnanoparticledispersioninducedsuperhighstabilityinabulknanocrystallinewbasedalloy AT hlin solutesegregationandnanoparticledispersioninducedsuperhighstabilityinabulknanocrystallinewbasedalloy |