Effect of temperature on the microstructure and mechanical properties of TiC/Fe matrix composites fabricated by spark plasma sintering
The effects of sintering temperatures on the microstructures and mechanical properties of titanium carbide particles reinforced iron matrix composites (TiC/Fe MCs) fabricated by the spark plasma sintering (SPS) process with pure element powders have been systematically investigated. Scanning electro...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-11-01
|
| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424021264 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1846107853063979008 |
|---|---|
| author | Chuan Wang Yong Li Wanpeng Zhang Tianwen Zhao Huiqiao Du |
| author_facet | Chuan Wang Yong Li Wanpeng Zhang Tianwen Zhao Huiqiao Du |
| author_sort | Chuan Wang |
| collection | DOAJ |
| description | The effects of sintering temperatures on the microstructures and mechanical properties of titanium carbide particles reinforced iron matrix composites (TiC/Fe MCs) fabricated by the spark plasma sintering (SPS) process with pure element powders have been systematically investigated. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), electron back scattering diffractometer (EBSD), and energy dispersive spectroscopy (EDS) have been conducted for microstructural analysis. The results show that with increasing sintering temperatures, the porosity of the composites initially decreases and then increases. Simultaneously, the grain size gradually diminishes while element diffusion becomes more uniform. Upon reaching a critical sintering temperature (1120 °C), the original grain size disappears and carbides undergo decomposition and reprecipitation to reach an equilibrium state, with which optimal comprehensive properties can be achieved (porosity decreases to a minimum of 3.85%, grain size of 2.69 μm, Vickers hardness reaches 595 HV0.5, bending strength is at 662 MPa, coefficient of friction is at 0.74, and wear loss to 0.21 mg). These property enhancements have been attributed to reduced porosity in the composites, decreased grain size, and improved anchoring effect of carbides within the matrix. Additionally, the primary fracture mechanisms and wear mechanisms of TiC/Fe MCs with different process parameters have been analyzed. When the temperature is below 1080 °C, intergranular fracture predominates, whereas transgranular and ductile fractures become predominant above this threshold. When the temperature is below 1120 °C, fatigue wear, oxidation wear, and abrasive wear are predominantly observed. Conversely, when the temperature exceeds 1120 °C, oxidation wear and abrasive wear become the primary mechanisms. |
| format | Article |
| id | doaj-art-5c06a89aa72f4674aa3cceb58623c81f |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-5c06a89aa72f4674aa3cceb58623c81f2024-12-26T08:53:46ZengElsevierJournal of Materials Research and Technology2238-78542024-11-013310321047Effect of temperature on the microstructure and mechanical properties of TiC/Fe matrix composites fabricated by spark plasma sinteringChuan Wang0Yong Li1Wanpeng Zhang2Tianwen Zhao3Huiqiao Du4School of Mechanical Engineering and Automation, Beihang University, Beijing, 100191, ChinaSchool of Mechanical Engineering and Automation, Beihang University, Beijing, 100191, China; Corresponding author.School of Mechanical Engineering and Automation, Beihang University, Beijing, 100191, ChinaSchool of Mechanical Engineering and Automation, Beihang University, Beijing, 100191, ChinaSchool of Mechanical Engineering and Automation, Beihang University, Beijing, 100191, China; Beijing Spacecrafts, Beijing, 100094, ChinaThe effects of sintering temperatures on the microstructures and mechanical properties of titanium carbide particles reinforced iron matrix composites (TiC/Fe MCs) fabricated by the spark plasma sintering (SPS) process with pure element powders have been systematically investigated. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), electron back scattering diffractometer (EBSD), and energy dispersive spectroscopy (EDS) have been conducted for microstructural analysis. The results show that with increasing sintering temperatures, the porosity of the composites initially decreases and then increases. Simultaneously, the grain size gradually diminishes while element diffusion becomes more uniform. Upon reaching a critical sintering temperature (1120 °C), the original grain size disappears and carbides undergo decomposition and reprecipitation to reach an equilibrium state, with which optimal comprehensive properties can be achieved (porosity decreases to a minimum of 3.85%, grain size of 2.69 μm, Vickers hardness reaches 595 HV0.5, bending strength is at 662 MPa, coefficient of friction is at 0.74, and wear loss to 0.21 mg). These property enhancements have been attributed to reduced porosity in the composites, decreased grain size, and improved anchoring effect of carbides within the matrix. Additionally, the primary fracture mechanisms and wear mechanisms of TiC/Fe MCs with different process parameters have been analyzed. When the temperature is below 1080 °C, intergranular fracture predominates, whereas transgranular and ductile fractures become predominant above this threshold. When the temperature is below 1120 °C, fatigue wear, oxidation wear, and abrasive wear are predominantly observed. Conversely, when the temperature exceeds 1120 °C, oxidation wear and abrasive wear become the primary mechanisms.http://www.sciencedirect.com/science/article/pii/S2238785424021264TiC/Fe matrix compositesSintering temperatureFabricateMechanical propertiesWear resistance |
| spellingShingle | Chuan Wang Yong Li Wanpeng Zhang Tianwen Zhao Huiqiao Du Effect of temperature on the microstructure and mechanical properties of TiC/Fe matrix composites fabricated by spark plasma sintering Journal of Materials Research and Technology TiC/Fe matrix composites Sintering temperature Fabricate Mechanical properties Wear resistance |
| title | Effect of temperature on the microstructure and mechanical properties of TiC/Fe matrix composites fabricated by spark plasma sintering |
| title_full | Effect of temperature on the microstructure and mechanical properties of TiC/Fe matrix composites fabricated by spark plasma sintering |
| title_fullStr | Effect of temperature on the microstructure and mechanical properties of TiC/Fe matrix composites fabricated by spark plasma sintering |
| title_full_unstemmed | Effect of temperature on the microstructure and mechanical properties of TiC/Fe matrix composites fabricated by spark plasma sintering |
| title_short | Effect of temperature on the microstructure and mechanical properties of TiC/Fe matrix composites fabricated by spark plasma sintering |
| title_sort | effect of temperature on the microstructure and mechanical properties of tic fe matrix composites fabricated by spark plasma sintering |
| topic | TiC/Fe matrix composites Sintering temperature Fabricate Mechanical properties Wear resistance |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424021264 |
| work_keys_str_mv | AT chuanwang effectoftemperatureonthemicrostructureandmechanicalpropertiesofticfematrixcompositesfabricatedbysparkplasmasintering AT yongli effectoftemperatureonthemicrostructureandmechanicalpropertiesofticfematrixcompositesfabricatedbysparkplasmasintering AT wanpengzhang effectoftemperatureonthemicrostructureandmechanicalpropertiesofticfematrixcompositesfabricatedbysparkplasmasintering AT tianwenzhao effectoftemperatureonthemicrostructureandmechanicalpropertiesofticfematrixcompositesfabricatedbysparkplasmasintering AT huiqiaodu effectoftemperatureonthemicrostructureandmechanicalpropertiesofticfematrixcompositesfabricatedbysparkplasmasintering |