Mechanical properties of TiB/Ti-6Al-4V alloy composites fabricated by spark plasma sintering
Ti-6Al-4V alloy exhibits a good combination of excellent properties, such as high specific strength, high fatigue strength, good ductility and weldability. However, Ti-6Al-4V alloy shows low stiffness and poor wear resistance. To further increase the strength properties and improve the stiffness and...
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| Format: | Article |
| Language: | English |
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The Japan Society of Mechanical Engineers
2017-10-01
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| Series: | Mechanical Engineering Journal |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/mej/4/6/4_17-00267/_pdf/-char/en |
| _version_ | 1818827075413344256 |
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| author | Hiroshi IZUI Tsubasa SHINOHARA |
| author_facet | Hiroshi IZUI Tsubasa SHINOHARA |
| author_sort | Hiroshi IZUI |
| collection | DOAJ |
| description | Ti-6Al-4V alloy exhibits a good combination of excellent properties, such as high specific strength, high fatigue strength, good ductility and weldability. However, Ti-6Al-4V alloy shows low stiffness and poor wear resistance. To further increase the strength properties and improve the stiffness and wear resistance, TiB reinforced Ti-6Al-4V alloy matrix (TiB/Ti-6Al-4V) composites were fabricated by a spark plasma sintering (SPS) process. The TiB/Ti-6Al-4V alloy composites with 4.2 vol.% TiB, which were fabricated at a sintering temperature of 900 °C and for a holding time of 30 min, had the highest tensile strength of 1174 MPa. The Young’s modulus and Vickers microhardness of the composites increased with increasing TiB volume fraction, and the composite with 16.7 vol.% TiB exhibited values of 159 GPa and 517 HV, respectively. The tensile strength of the composite with 4.2 vol.% TiB at 400 °C was higher than that of the mild annealed Ti-6Al-4V alloy. The fatigue limits (over 107 cycles) at room temperature and 600 °C of the composites with 4.2 vol.% TiB were 350 MPa and 200 MPa, respectively. The creep strains at room temperature of the composites with 1.4 and 4.2 vol.% TiB did not increase with increasing creep time. |
| first_indexed | 2024-12-19T00:37:47Z |
| format | Article |
| id | doaj.art-2faa03db6e084ae988e57c48dbaa56a6 |
| institution | Directory Open Access Journal |
| issn | 2187-9745 |
| language | English |
| last_indexed | 2024-12-19T00:37:47Z |
| publishDate | 2017-10-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Mechanical Engineering Journal |
| spelling | doaj.art-2faa03db6e084ae988e57c48dbaa56a62022-12-21T20:44:43ZengThe Japan Society of Mechanical EngineersMechanical Engineering Journal2187-97452017-10-014617-0026717-0026710.1299/mej.17-00267mejMechanical properties of TiB/Ti-6Al-4V alloy composites fabricated by spark plasma sinteringHiroshi IZUI0Tsubasa SHINOHARA1Department of Aerospace Engineering, Nihon UniversityDepartment of Aerospace Engineering, Nihon UniversityTi-6Al-4V alloy exhibits a good combination of excellent properties, such as high specific strength, high fatigue strength, good ductility and weldability. However, Ti-6Al-4V alloy shows low stiffness and poor wear resistance. To further increase the strength properties and improve the stiffness and wear resistance, TiB reinforced Ti-6Al-4V alloy matrix (TiB/Ti-6Al-4V) composites were fabricated by a spark plasma sintering (SPS) process. The TiB/Ti-6Al-4V alloy composites with 4.2 vol.% TiB, which were fabricated at a sintering temperature of 900 °C and for a holding time of 30 min, had the highest tensile strength of 1174 MPa. The Young’s modulus and Vickers microhardness of the composites increased with increasing TiB volume fraction, and the composite with 16.7 vol.% TiB exhibited values of 159 GPa and 517 HV, respectively. The tensile strength of the composite with 4.2 vol.% TiB at 400 °C was higher than that of the mild annealed Ti-6Al-4V alloy. The fatigue limits (over 107 cycles) at room temperature and 600 °C of the composites with 4.2 vol.% TiB were 350 MPa and 200 MPa, respectively. The creep strains at room temperature of the composites with 1.4 and 4.2 vol.% TiB did not increase with increasing creep time.https://www.jstage.jst.go.jp/article/mej/4/6/4_17-00267/_pdf/-char/entitanium matrix compositesti-6al-4v alloytibspark plasma sinteringtib volume fractiontensile propertiesfatigue strengthroom-temperature creep behavior |
| spellingShingle | Hiroshi IZUI Tsubasa SHINOHARA Mechanical properties of TiB/Ti-6Al-4V alloy composites fabricated by spark plasma sintering Mechanical Engineering Journal titanium matrix composites ti-6al-4v alloy tib spark plasma sintering tib volume fraction tensile properties fatigue strength room-temperature creep behavior |
| title | Mechanical properties of TiB/Ti-6Al-4V alloy composites fabricated by spark plasma sintering |
| title_full | Mechanical properties of TiB/Ti-6Al-4V alloy composites fabricated by spark plasma sintering |
| title_fullStr | Mechanical properties of TiB/Ti-6Al-4V alloy composites fabricated by spark plasma sintering |
| title_full_unstemmed | Mechanical properties of TiB/Ti-6Al-4V alloy composites fabricated by spark plasma sintering |
| title_short | Mechanical properties of TiB/Ti-6Al-4V alloy composites fabricated by spark plasma sintering |
| title_sort | mechanical properties of tib ti 6al 4v alloy composites fabricated by spark plasma sintering |
| topic | titanium matrix composites ti-6al-4v alloy tib spark plasma sintering tib volume fraction tensile properties fatigue strength room-temperature creep behavior |
| url | https://www.jstage.jst.go.jp/article/mej/4/6/4_17-00267/_pdf/-char/en |
| work_keys_str_mv | AT hiroshiizui mechanicalpropertiesoftibti6al4valloycompositesfabricatedbysparkplasmasintering AT tsubasashinohara mechanicalpropertiesoftibti6al4valloycompositesfabricatedbysparkplasmasintering |