Enhanced strength and corrosion resistance in as-cast TA10 alloys via interstitial carbon solute
The addition of interstitial elements generally has a significant impact on the macroscopic performances of structural alloys. Here, we report a systematic study on the microstructure, corrosion behaviors and mechanical properties of a series of as-cast Ti-0.3Mo-0.8Ni- x C ( x = 0.09, 0.12 and 0.15...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2022-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/ac639d |
| _version_ | 1797746522891223040 |
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| author | Yong Yang Binbin Wang Yanjie Li Baoxian Su Liangshun Luo Liang Wang Haiguang Huang Yanqing Su Jingjie Guo |
| author_facet | Yong Yang Binbin Wang Yanjie Li Baoxian Su Liangshun Luo Liang Wang Haiguang Huang Yanqing Su Jingjie Guo |
| author_sort | Yong Yang |
| collection | DOAJ |
| description | The addition of interstitial elements generally has a significant impact on the macroscopic performances of structural alloys. Here, we report a systematic study on the microstructure, corrosion behaviors and mechanical properties of a series of as-cast Ti-0.3Mo-0.8Ni- x C ( x = 0.09, 0.12 and 0.15 wt.%) alloys. A typical basket-weave microstructure appears in all specimens, characterized by the lamellar α -phase and intergranular retained β -phase without TiC precipitates within the prior β grain boundary. Based on the electrochemical and immersion tests, doping with C element can significantly improve the corrosion resistance of TA10 alloys; with increasing the carbon content, the passivation current density decreases from 5.750 to 4.938 μ A·cm ^−2 , the breakdown potential increases from −1.115 to −1.223 V versus SCE, the corrosion rate reduces from 15 mm/a to 7.5 mm/a. Moreover, the mechanical properties of TA10 alloys, such as the strength and hardness, can also be enhanced via C alloying. Our results indicate that the addition of interstitial elements should be a potential effective mean to accommodate the comprehensive performances of TA10 alloys. |
| first_indexed | 2024-03-12T15:38:58Z |
| format | Article |
| id | doaj.art-287aaa24f60543888062bd40025d99d8 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:38:58Z |
| publishDate | 2022-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-287aaa24f60543888062bd40025d99d82023-08-09T16:04:57ZengIOP PublishingMaterials Research Express2053-15912022-01-019404651010.1088/2053-1591/ac639dEnhanced strength and corrosion resistance in as-cast TA10 alloys via interstitial carbon soluteYong Yang0Binbin Wang1Yanjie Li2Baoxian Su3Liangshun Luo4https://orcid.org/0000-0003-3919-938XLiang Wang5Haiguang Huang6Yanqing Su7Jingjie Guo8National Key Laboratory for Precision Hot Processing of Metals, School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, People’s Republic of ChinaNational Key Laboratory for Precision Hot Processing of Metals, School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, People’s Republic of ChinaNational Key Laboratory for Precision Hot Processing of Metals, School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, People’s Republic of ChinaNational Key Laboratory for Precision Hot Processing of Metals, School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, People’s Republic of ChinaNational Key Laboratory for Precision Hot Processing of Metals, School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, People’s Republic of ChinaNational Key Laboratory for Precision Hot Processing of Metals, School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, People’s Republic of ChinaSchool of Materials Science and Engineering, Kunming University of Science and Technology , Kunming 650093, People’s Republic of China; Yunnan Titanium Industry Co., Ltd, Chuxiong 651209, People’s Republic of ChinaNational Key Laboratory for Precision Hot Processing of Metals, School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, People’s Republic of ChinaNational Key Laboratory for Precision Hot Processing of Metals, School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, People’s Republic of ChinaThe addition of interstitial elements generally has a significant impact on the macroscopic performances of structural alloys. Here, we report a systematic study on the microstructure, corrosion behaviors and mechanical properties of a series of as-cast Ti-0.3Mo-0.8Ni- x C ( x = 0.09, 0.12 and 0.15 wt.%) alloys. A typical basket-weave microstructure appears in all specimens, characterized by the lamellar α -phase and intergranular retained β -phase without TiC precipitates within the prior β grain boundary. Based on the electrochemical and immersion tests, doping with C element can significantly improve the corrosion resistance of TA10 alloys; with increasing the carbon content, the passivation current density decreases from 5.750 to 4.938 μ A·cm ^−2 , the breakdown potential increases from −1.115 to −1.223 V versus SCE, the corrosion rate reduces from 15 mm/a to 7.5 mm/a. Moreover, the mechanical properties of TA10 alloys, such as the strength and hardness, can also be enhanced via C alloying. Our results indicate that the addition of interstitial elements should be a potential effective mean to accommodate the comprehensive performances of TA10 alloys.https://doi.org/10.1088/2053-1591/ac639dtitaniumcarbonmicrostructurecorrosion behaviormechanical property |
| spellingShingle | Yong Yang Binbin Wang Yanjie Li Baoxian Su Liangshun Luo Liang Wang Haiguang Huang Yanqing Su Jingjie Guo Enhanced strength and corrosion resistance in as-cast TA10 alloys via interstitial carbon solute Materials Research Express titanium carbon microstructure corrosion behavior mechanical property |
| title | Enhanced strength and corrosion resistance in as-cast TA10 alloys via interstitial carbon solute |
| title_full | Enhanced strength and corrosion resistance in as-cast TA10 alloys via interstitial carbon solute |
| title_fullStr | Enhanced strength and corrosion resistance in as-cast TA10 alloys via interstitial carbon solute |
| title_full_unstemmed | Enhanced strength and corrosion resistance in as-cast TA10 alloys via interstitial carbon solute |
| title_short | Enhanced strength and corrosion resistance in as-cast TA10 alloys via interstitial carbon solute |
| title_sort | enhanced strength and corrosion resistance in as cast ta10 alloys via interstitial carbon solute |
| topic | titanium carbon microstructure corrosion behavior mechanical property |
| url | https://doi.org/10.1088/2053-1591/ac639d |
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