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High-Temperature Deformation Behavior of Ti-6Al-4V Alloy without and with Hydrogenation Content of 0.27 wt.%

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Abstract

Isothermal compression of Ti-6Al-4V alloy without and with hydrogenation content of 0.27 wt.% was carried out on Gleeble-1500D thermal simulation machine at deformation temperature between 760 and 1000 °C and strain rate from 0.001 to 1 s−1. The experimental results show that hydrogenation can decrease the deformation temperature or increase the strain rate of Ti-6Al-4V alloy. The apparent activation energy was determined to be 667 kJ mol−1 for isothermal compression of the Ti-6Al-4V alloy without hydrogenation content of 0.27 wt.% in the α + β phase region (760-960 °C), and this value was about 655 and 199 kJ mol−1 for the alloy with 0.27 wt.% of hydrogenation content in the α + β phase region (760-840 °C) and β phase region (840-960 °C), respectively. Constitutive equation was developed for the high-temperature deformation of Ti-6Al-4V alloy both without and with hydrogenation content of 0.27 wt.%.

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Acknowledgments

The authors thank the financial supports from the National Natural Science Foundation of China with Grant No. 50371068, and the Aviation Scientific Foundation of AVIC with Grant No. 05H53058.

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Authors and Affiliations

  1. Northwestern Polytechnical University, Xi’an, 710072, P.R. China

    Yong Niu, Miaoquan Li & Yingying Lin

  2. Beijing Aeronautical Manufacturing Technology Research Institute, Beijing, 100024, P.R. China

    Hongliang Hou & Yaoqi Wang

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  1. Yong Niu
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  2. Miaoquan Li
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Correspondence to Miaoquan Li.

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Niu, Y., Li, M., Hou, H. et al. High-Temperature Deformation Behavior of Ti-6Al-4V Alloy without and with Hydrogenation Content of 0.27 wt.%. J. of Materi Eng and Perform 19, 59–63 (2010). https://doi.org/10.1007/s11665-009-9427-5

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