摘要
采用敲击共振、激光脉冲、比较法、非稳态法、顶杆法等研究了Ti45Nb合金的热物理性能。结果表明,从室温~300℃,Ti45Nb合金的泊松比受温度的影响较小,杨氏模量和剪切模量随温度的升高而迅速下降,热扩散率和热导率随着温度的升高呈线性增加,比热容随温度升高呈抛物线增加,线热膨胀量在50℃以前呈抛物线增加,50℃以后呈线性增加;瞬时线膨胀系数在100℃前随着温度的升高呈线性增加,100℃后趋于稳态。
Thermo-physical behavior of Ti45Nb titanium alloy was described by nondestructive test, laser pulse, comparative analysis, non-steady method and ejector pins. The results reveal that the Poisson＇s ratio of Ti45Nb alloy is affected slightly by temperature in the range from room temperature to 300 ℃, while the Young＇s modulus and shear modulus are decreased rapidly with the increase of temperature. In addition, the thermal diffusivity and thermal conductivity are increased linearly with increasing in ten：- perature. The specific heat is increased in form of the parabola as the temperature increase. The linear thermal expansion curve is increased in form of parabolia before 50 ℃ and increased linearly after 50 ℃. The instantaneous linear expansion curve is increased linearly with the increase of temperature before 100 ℃, and stabilized after 100 ℃.
出处
《特种铸造及有色合金》
CAS
CSCD
北大核心
2017年第7期774-776,共3页
Special Casting & Nonferrous Alloys
基金
国家国际科技合作专项基金资助项目(2015DFR50010)
陕西省科技统筹创新工程计划基金资助项目(2016KTCQ01-100)
关键词
Ti45Nb合金
热物理性能
弹性性能
Ti45Nb alloy, Thermo-physical Properties,Elasticity Properties
