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Microstructural evolution during aging of Ti-5Al-5Mo-5V-1Cr-1Fe alloy

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Abstract

The evolution of microstructure on aging of an (α+β) titanium alloy (Ti-5Al-5Mo-5V-1Cr-1Fe) in the β and (α+β) solution-treated and quenched conditions was investigated. The presence of very fine ω phase was detected by electron diffraction for samples aged below 400 °C. The fine α aggregates are uniformly formed within β grains by nucleating at the ω particles or β/ω interfaces. At higher temperature, the formation of ω phase is avoided and the α lamellae are precipitated at the preferred site of grain boundary and then within the matrix. The highest hardness values are found when the alloys are aged at 450 °C for β condition and 350 °C for (α+β) condition.

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Authors and Affiliations

  1. School of Environment and Materials Engineering, Yantai University, Yantai, 264005, China

    Shang-zhou Zhang  (张尚洲), Zi-quan Liu  (刘子全) & Guang-dong Wang  (王广东)

  2. State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang, 110004, China

    Li-qing Chen  (陈礼清) & Xiang-hua Liu  (刘相华)

  3. Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China

    Rui Yang  (杨锐)

Authors
  1. Shang-zhou Zhang  (张尚洲)
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  2. Zi-quan Liu  (刘子全)
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  3. Guang-dong Wang  (王广东)
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  4. Li-qing Chen  (陈礼清)
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  5. Xiang-hua Liu  (刘相华)
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  6. Rui Yang  (杨锐)
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Corresponding author

Correspondence to Shang-zhou Zhang  (张尚洲).

Additional information

Foundation item: Project (50634030) supported by the National Natural Science Foundation of China; Project (2007DS04014) supported by the Program of Science and Technology of Shandong Province, China; Project supported by the Open Research Fund from the State Key Laboratory of Rolling and Automation, Northeastern University, China

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Zhang, Sz., Liu, Zq., Wang, Gd. et al. Microstructural evolution during aging of Ti-5Al-5Mo-5V-1Cr-1Fe alloy. J. Cent. South Univ. Technol. 16, 354–359 (2009). https://doi.org/10.1007/s11771-009-0060-0

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  • DOI: https://doi.org/10.1007/s11771-009-0060-0

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