Study on Microstructure, Mechanical Performance and Thermal Shock Resistance of Diffusion Welded Joint of ODS-W and TZC Alloy
The diffusion welded joint of oxide dispersion strengthened tungsten (ODS-W) and Mo-Ti-Zr-C alloy (TZC) was successfully fabricated with the use of spark plasma sintering (SPS) at a vacuum level of 10 Pa. This study systematically investigates the microstructure, mechanical performance, and thermal...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-10-01
|
| Series: | Metals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-4701/13/11/1802 |
| _version_ | 1797458450047827968 |
|---|---|
| author | Dongguang Liu Siwei Zhou Zequn Li Jinxin Zou Chongfei Ruan Lin Meng Chunfu Hong Xuepeng Liu |
| author_facet | Dongguang Liu Siwei Zhou Zequn Li Jinxin Zou Chongfei Ruan Lin Meng Chunfu Hong Xuepeng Liu |
| author_sort | Dongguang Liu |
| collection | DOAJ |
| description | The diffusion welded joint of oxide dispersion strengthened tungsten (ODS-W) and Mo-Ti-Zr-C alloy (TZC) was successfully fabricated with the use of spark plasma sintering (SPS) at a vacuum level of 10 Pa. This study systematically investigates the microstructure, mechanical performance, and thermal shock resistance of the ODS-W/TZC connector at four different temperatures, ranging from 1300 to 1600 °C. The diffusion distance between the W and Mo atoms at the interface of ODS-W/TZC joint raises as the sintering temperature increases, with a maximum diffusion distance of up to 2 μm at 1500 °C, but then slightly decreases at 1600 °C. The ODS-W/TZC connector bonded at 1500 °C exhibits the best tensile performance, with tensile strengths of 459 MPa and 786 MPa at room temperature and 500 °C, respectively. A maximum hardness of 446 HV is obtained at the interface when the sample is sintered at 1600 °C. Thermal shock tests are conducted on the surface and interface of the ODS-W/TZC connector sintered at various temperatures. ODS-W/TZC samples prepared below 1500 °C were severely damaged, leading to exfoliation after laser thermal shock, while samples prepared above 1500 °C produced fewer damage cracks. Confocal laser scanning microscope (CLSM) analysis demonstrated that the ODS-W/TZC joint fabricated at 1500 °C exhibited substantially reduced height perturbation of both its surface and interface compared to that of ODS-W, providing evidence for its superior thermal shock resistance. |
| first_indexed | 2024-03-09T16:37:17Z |
| format | Article |
| id | doaj.art-820655f8efd6439c885acc32cb79b91b |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T16:37:17Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-820655f8efd6439c885acc32cb79b91b2023-11-24T14:55:38ZengMDPI AGMetals2075-47012023-10-011311180210.3390/met13111802Study on Microstructure, Mechanical Performance and Thermal Shock Resistance of Diffusion Welded Joint of ODS-W and TZC AlloyDongguang Liu0Siwei Zhou1Zequn Li2Jinxin Zou3Chongfei Ruan4Lin Meng5Chunfu Hong6Xuepeng Liu7Anhui Province Key Lab of Aerospace Structural Parts Forming Technology and Equipment, Industry & Equipment Technology, Hefei University of Technology, Hefei 230009, ChinaAnhui Province Key Lab of Aerospace Structural Parts Forming Technology and Equipment, Industry & Equipment Technology, Hefei University of Technology, Hefei 230009, ChinaAnhui Province Key Lab of Aerospace Structural Parts Forming Technology and Equipment, Industry & Equipment Technology, Hefei University of Technology, Hefei 230009, ChinaAnhui Province Key Lab of Aerospace Structural Parts Forming Technology and Equipment, Industry & Equipment Technology, Hefei University of Technology, Hefei 230009, ChinaAnhui Province Key Lab of Aerospace Structural Parts Forming Technology and Equipment, Industry & Equipment Technology, Hefei University of Technology, Hefei 230009, ChinaSchool of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, ChinaFujian Provincial Key Laboratory of Advanced Materials Processing and Application, Fujian University of Technology, Fuzhou 350118, ChinaAnhui Province Key Lab of Aerospace Structural Parts Forming Technology and Equipment, Industry & Equipment Technology, Hefei University of Technology, Hefei 230009, ChinaThe diffusion welded joint of oxide dispersion strengthened tungsten (ODS-W) and Mo-Ti-Zr-C alloy (TZC) was successfully fabricated with the use of spark plasma sintering (SPS) at a vacuum level of 10 Pa. This study systematically investigates the microstructure, mechanical performance, and thermal shock resistance of the ODS-W/TZC connector at four different temperatures, ranging from 1300 to 1600 °C. The diffusion distance between the W and Mo atoms at the interface of ODS-W/TZC joint raises as the sintering temperature increases, with a maximum diffusion distance of up to 2 μm at 1500 °C, but then slightly decreases at 1600 °C. The ODS-W/TZC connector bonded at 1500 °C exhibits the best tensile performance, with tensile strengths of 459 MPa and 786 MPa at room temperature and 500 °C, respectively. A maximum hardness of 446 HV is obtained at the interface when the sample is sintered at 1600 °C. Thermal shock tests are conducted on the surface and interface of the ODS-W/TZC connector sintered at various temperatures. ODS-W/TZC samples prepared below 1500 °C were severely damaged, leading to exfoliation after laser thermal shock, while samples prepared above 1500 °C produced fewer damage cracks. Confocal laser scanning microscope (CLSM) analysis demonstrated that the ODS-W/TZC joint fabricated at 1500 °C exhibited substantially reduced height perturbation of both its surface and interface compared to that of ODS-W, providing evidence for its superior thermal shock resistance.https://www.mdpi.com/2075-4701/13/11/1802diffusion weldingODS-W/TZC connectormicrostructuremechanical performancethermal shock resistance |
| spellingShingle | Dongguang Liu Siwei Zhou Zequn Li Jinxin Zou Chongfei Ruan Lin Meng Chunfu Hong Xuepeng Liu Study on Microstructure, Mechanical Performance and Thermal Shock Resistance of Diffusion Welded Joint of ODS-W and TZC Alloy Metals diffusion welding ODS-W/TZC connector microstructure mechanical performance thermal shock resistance |
| title | Study on Microstructure, Mechanical Performance and Thermal Shock Resistance of Diffusion Welded Joint of ODS-W and TZC Alloy |
| title_full | Study on Microstructure, Mechanical Performance and Thermal Shock Resistance of Diffusion Welded Joint of ODS-W and TZC Alloy |
| title_fullStr | Study on Microstructure, Mechanical Performance and Thermal Shock Resistance of Diffusion Welded Joint of ODS-W and TZC Alloy |
| title_full_unstemmed | Study on Microstructure, Mechanical Performance and Thermal Shock Resistance of Diffusion Welded Joint of ODS-W and TZC Alloy |
| title_short | Study on Microstructure, Mechanical Performance and Thermal Shock Resistance of Diffusion Welded Joint of ODS-W and TZC Alloy |
| title_sort | study on microstructure mechanical performance and thermal shock resistance of diffusion welded joint of ods w and tzc alloy |
| topic | diffusion welding ODS-W/TZC connector microstructure mechanical performance thermal shock resistance |
| url | https://www.mdpi.com/2075-4701/13/11/1802 |
| work_keys_str_mv | AT dongguangliu studyonmicrostructuremechanicalperformanceandthermalshockresistanceofdiffusionweldedjointofodswandtzcalloy AT siweizhou studyonmicrostructuremechanicalperformanceandthermalshockresistanceofdiffusionweldedjointofodswandtzcalloy AT zequnli studyonmicrostructuremechanicalperformanceandthermalshockresistanceofdiffusionweldedjointofodswandtzcalloy AT jinxinzou studyonmicrostructuremechanicalperformanceandthermalshockresistanceofdiffusionweldedjointofodswandtzcalloy AT chongfeiruan studyonmicrostructuremechanicalperformanceandthermalshockresistanceofdiffusionweldedjointofodswandtzcalloy AT linmeng studyonmicrostructuremechanicalperformanceandthermalshockresistanceofdiffusionweldedjointofodswandtzcalloy AT chunfuhong studyonmicrostructuremechanicalperformanceandthermalshockresistanceofdiffusionweldedjointofodswandtzcalloy AT xuepengliu studyonmicrostructuremechanicalperformanceandthermalshockresistanceofdiffusionweldedjointofodswandtzcalloy |