Friction and high temperature oxidation resistance of laser cladding NiCrCoAlY-Cr3C2 composite coating on TC4 titanium alloy
In order to improve the surface friction, wear and high temperature oxidation resistance of TC4 titanium alloy, NiCrCoAlY+20%(mass fraction) Cr3C2 mixed powder was selected as the cladding powder to prepare NiCrCoAlY-Cr3C2 composite coating on the surface of TC4 titanium alloy by using laser claddin...
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| Format: | Article |
| Language: | zho |
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Journal of Materials Engineering
2021-12-01
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| Series: | Cailiao gongcheng |
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| Online Access: | http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2020.000989 |
| _version_ | 1797969593212338176 |
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| author | QIN Xin QI Wen-jun ZUO Xiao-gang |
| author_facet | QIN Xin QI Wen-jun ZUO Xiao-gang |
| author_sort | QIN Xin |
| collection | DOAJ |
| description | In order to improve the surface friction, wear and high temperature oxidation resistance of TC4 titanium alloy, NiCrCoAlY+20%(mass fraction) Cr3C2 mixed powder was selected as the cladding powder to prepare NiCrCoAlY-Cr3C2 composite coating on the surface of TC4 titanium alloy by using laser cladding technology. The microstructure and phase composition of the coating were analyzed by OM, SEM, XRD, EDS, etc.The microhardness of the coating was measured by HXD-1000TB tester. MMG-500 three-body wear tester and WS-G150 smart muffle furnace were used to test the friction, wear and high temperature oxidation resistance of the coating and substrate. The results show that the laser cladding technology can be used to prepare the good composite coating on the surface of TC4 titanium alloy without cracks and pores. The microstructure of the cladding zone is dense, mostly needle-like crystals and dendrites.The microstructure of the bonding zone is mainly composed of planar crystals, cellular crystals and dendrites, which generates a variety of products including the carbides, oxides and intermetallic compounds that can improve wear resistance and high temperature oxidation resistance. The maximum microhardness of the composite coating is 1344HV, which is about 3.8 times of the 350HV of the titanium alloy substrate.The friction factor of the composite coating is 0.2-0.3, which is significantly lower than the friction factor of the titanium alloy substrate of 0.6-0.7. Under the same conditions, the wear mass loss of the composite coating is 0.00060 g, which is 0.9% of that of 0.06508 g of titanium alloy substrate. After oxidation at 850℃ for 100 h, the oxidation mass gain of the composite coating is 6.01 mg·cm-2, which is about 24% of that of 25.10 mg·cm-2 of titanium alloy substrate. Laser cladding technology effectively improves the friction and wear performance and high temperature oxidation resistance of the TC4 titanium alloy surface. |
| first_indexed | 2024-04-11T03:04:46Z |
| format | Article |
| id | doaj.art-309840a1ff934d5a848f0c78d767cef2 |
| institution | Directory Open Access Journal |
| issn | 1001-4381 |
| language | zho |
| last_indexed | 2024-04-11T03:04:46Z |
| publishDate | 2021-12-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj.art-309840a1ff934d5a848f0c78d767cef22023-01-02T13:24:54ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43812021-12-01491210711410.11868/j.issn.1001-4381.2020.0009891639966364356-180678231Friction and high temperature oxidation resistance of laser cladding NiCrCoAlY-Cr3C2 composite coating on TC4 titanium alloyQIN Xin0QI Wen-jun1ZUO Xiao-gang2School of Mechanical Engineering, Xinjiang University, Urumqi 830017, ChinaSchool of Mechanical Engineering, Xinjiang University, Urumqi 830017, ChinaXinjiang Joinworld Company Limited, Urumqi 830013, ChinaIn order to improve the surface friction, wear and high temperature oxidation resistance of TC4 titanium alloy, NiCrCoAlY+20%(mass fraction) Cr3C2 mixed powder was selected as the cladding powder to prepare NiCrCoAlY-Cr3C2 composite coating on the surface of TC4 titanium alloy by using laser cladding technology. The microstructure and phase composition of the coating were analyzed by OM, SEM, XRD, EDS, etc.The microhardness of the coating was measured by HXD-1000TB tester. MMG-500 three-body wear tester and WS-G150 smart muffle furnace were used to test the friction, wear and high temperature oxidation resistance of the coating and substrate. The results show that the laser cladding technology can be used to prepare the good composite coating on the surface of TC4 titanium alloy without cracks and pores. The microstructure of the cladding zone is dense, mostly needle-like crystals and dendrites.The microstructure of the bonding zone is mainly composed of planar crystals, cellular crystals and dendrites, which generates a variety of products including the carbides, oxides and intermetallic compounds that can improve wear resistance and high temperature oxidation resistance. The maximum microhardness of the composite coating is 1344HV, which is about 3.8 times of the 350HV of the titanium alloy substrate.The friction factor of the composite coating is 0.2-0.3, which is significantly lower than the friction factor of the titanium alloy substrate of 0.6-0.7. Under the same conditions, the wear mass loss of the composite coating is 0.00060 g, which is 0.9% of that of 0.06508 g of titanium alloy substrate. After oxidation at 850℃ for 100 h, the oxidation mass gain of the composite coating is 6.01 mg·cm-2, which is about 24% of that of 25.10 mg·cm-2 of titanium alloy substrate. Laser cladding technology effectively improves the friction and wear performance and high temperature oxidation resistance of the TC4 titanium alloy surface.http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2020.000989tc4 titanium alloylaser claddingmicrostructurewear propertyhigh temperature oxid-ation resistance |
| spellingShingle | QIN Xin QI Wen-jun ZUO Xiao-gang Friction and high temperature oxidation resistance of laser cladding NiCrCoAlY-Cr3C2 composite coating on TC4 titanium alloy Cailiao gongcheng tc4 titanium alloy laser cladding microstructure wear property high temperature oxid-ation resistance |
| title | Friction and high temperature oxidation resistance of laser cladding NiCrCoAlY-Cr3C2 composite coating on TC4 titanium alloy |
| title_full | Friction and high temperature oxidation resistance of laser cladding NiCrCoAlY-Cr3C2 composite coating on TC4 titanium alloy |
| title_fullStr | Friction and high temperature oxidation resistance of laser cladding NiCrCoAlY-Cr3C2 composite coating on TC4 titanium alloy |
| title_full_unstemmed | Friction and high temperature oxidation resistance of laser cladding NiCrCoAlY-Cr3C2 composite coating on TC4 titanium alloy |
| title_short | Friction and high temperature oxidation resistance of laser cladding NiCrCoAlY-Cr3C2 composite coating on TC4 titanium alloy |
| title_sort | friction and high temperature oxidation resistance of laser cladding nicrcoaly cr3c2 composite coating on tc4 titanium alloy |
| topic | tc4 titanium alloy laser cladding microstructure wear property high temperature oxid-ation resistance |
| url | http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2020.000989 |
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