Physical properties of WSTi3515S burn-resistant titanium alloy
来源期刊：Rare Metals2016年第5期
论文作者：Yun-Jin Lai Ping-Xiang Zhang Xue-Min Zhang Xiang-Hong Liu Yong Feng Hong-Chao Kou Fan-Jiao Ma Wei-Dong Zeng
文章页码：361 - 366
摘 要：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 gácm-3.
Yun-Jin Lai1,2，Ping-Xiang Zhang1，Xue-Min Zhang3，Xiang-Hong Liu2，Yong Feng2，Hong-Chao Kou1，Fan-Jiao Ma2，Wei-Dong Zeng1
1. State Key Laboratory of Solidification Processing, Northwestern Polytechnical University2. Western Superconducting Technologies Co., Ltd.3. School of Materials Science and Engineering, Chang’an University
摘 要：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 gácm-3.
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