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Physical properties of WSTi3515S burn-resistant titanium alloy

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Abstract

Development of burn-resistant titanium alloys is the most direct way of mitigating the ignition and propagation of titanium fires in jet engines. WSTi3515S alloy (Ti–35V–15Cr–0.3Si–0.1C) is a new high alloying beta type burn-resistant titanium alloy, belonging to Ti–V–Cr type alloys which have been made significant progress in engineering technology in the past 5 years. The physical properties of WSTi3515S burn-resistant titanium alloy such as the elastic properties and thermal properties were measured and analyzed in different conditions. The results show that both the Young’s modulus and shear modulus of WSTi3515S alloy decrease slightly with the temperature increasing at the tested temperature range. The Poisson’s ratio of WSTi3515S alloy is around 0.36. However, the thermal properties such as the specific heat, thermal diffusivity, thermal conductivity and thermal expansion increase with the temperature increasing, which results from the strengthening of lattice heat vibration at elevated temperature. And the room temperature density of WSTi3515S alloy is 5.295 g·cm−3.

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Acknowledgments

This study was financially supported by the International Science and Technology Cooperation Program of China (No. ISTCP 2013DFR50090), the National Natural Science Foundation of China (No. 51504037), and the Special Fund for Basic Scientific Research of Central Colleges, Chang’an University (No. 2014G1311088).

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Authors and Affiliations

  1. State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an, 710072, China

    Yun-Jin Lai, Ping-Xiang Zhang, Hong-Chao Kou & Wei-Dong Zeng

  2. Western Superconducting Technologies Co., Ltd., Xi’an, 710018, China

    Yun-Jin Lai, Xiang-Hong Liu, Yong Feng & Fan-Jiao Ma

  3. School of Materials Science and Engineering, Chang’an University, Xi’an, 710064, China

    Xue-Min Zhang

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  1. Yun-Jin Lai
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  2. Ping-Xiang Zhang
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  6. Hong-Chao Kou
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  8. Wei-Dong Zeng
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Correspondence to Yun-Jin Lai.

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Lai, YJ., Zhang, PX., Zhang, XM. et al. Physical properties of WSTi3515S burn-resistant titanium alloy. Rare Met. 35, 361–366 (2016). https://doi.org/10.1007/s12598-016-0705-8

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  • DOI: https://doi.org/10.1007/s12598-016-0705-8

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