| Microstructural evolution during aging of Ti-10V-2Fe-3Al titanium alloy |
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| 引用本文： | Bo Wang Ziquan Liu Yuan Gao Shangzhou Zhang Xiaoyan Wang. Microstructural evolution during aging of Ti-10V-2Fe-3Al titanium alloy[J]. 北京科技大学学报(英文版), 2007, 14(4): 335-340. DOI: 10.1016/S1005-8850(07)60066-8 |
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| 作者姓名： | Bo Wang Ziquan Liu Yuan Gao Shangzhou Zhang Xiaoyan Wang |
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| 作者单位： | [1]School of Environmental and Materials Engineering, Yantai University, Yantai 264005, China [2]Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China |
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| 摘 要： | The development of microstructure during the aging of Ti-10V-2Fe-3A1 alloy in the β and (α β) solution-treated and quenched conditions was investigated. The results showed that the isothermal holding below 400℃ yielded homogeneously distributed, spherical ω-phase particles. Fine α aggregates are formed uniformly within β grains by nucleating at ω particles or β/ω interfaces. At higher temperatures, thin martensite plates decomposed in water-quenched condition. The formation of ω phase was avoided and coarse α-phase plates directly precipitated from the β matrix. The highest hardness values were found when the alloys were aged at 400℃ for 8 h. The significance of the observations was discussed in terms of the effect of aging on the precipitations and property.
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| 关 键 词： | 贝它钛合金 显微结构 时效 脱溶 性质 |
| 收稿时间： | 20 March 2007. |
| 修稿时间： | 2007-03-20 |
Microstructural evolution during aging of Ti-10V-2Fe-3Al titanium alloy |
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| Bo Wang,Ziquan Liu,Yuan Gao,Shangzhou Zhang,Xiaoyan Wang. Microstructural evolution during aging of Ti-10V-2Fe-3Al titanium alloy[J]. Journal of University of Science and Technology Beijing, 2007, 14(4): 335-340. DOI: 10.1016/S1005-8850(07)60066-8 |
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| Authors: | Bo Wang Ziquan Liu Yuan Gao Shangzhou Zhang Xiaoyan Wang |
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| Affiliation: | 1. School of Environmental and Materials Engineering, Yantai University, Yantai 264005, China
2. Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China |
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| Abstract: | The development of microstructure during the aging of Ti-10V-2Fe-3A1 alloy in the β and (α+β) solution-treated and quenched conditions was investigated. The results showed that the isothermal holding below 400℃ yielded homogeneously distributed, spherical ω-phase particles. Fine α aggregates are formed uniformly within β grains by nucleating at ω particles or β/ω interfaces. At higher temperatures, thin martensite plates decomposed in water-quenched condition. The formation of ω phase was avoided and coarse α-phase plates directly precipitated from the β matrix. The highest hardness values were found when the alloys were aged at 400℃ for 8 h. The significance of the observations was discussed in terms of the effect of aging on the precipitations and property. |
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| Keywords: | beta titanium alloy microstructure aging precipitation property |
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