【摘要】：采用真空非自耗熔煉法制備Ti-36Nb-2Ta-3Zr-xO(x=0,0.1,0.3,0.5,質(zhì)量分數(shù),%)合金,通過X射線衍射(XRD)儀、萬能試驗機、動態(tài)熱機械分析(DMA)儀等測試方法研究了氧含量對固溶態(tài)Ti-36Nb-2Ta-3Zr-xO合金組織、力學性能和阻尼行為的影響。結(jié)果表明:氧元素對α″相具有抑制作用。合金呈現(xiàn)Snoek弛豫型阻尼特征并具有良好的高溫阻尼性能,其阻尼值隨著氧含量的增加而提高,而峰溫無明顯變化。測試頻率為1.0 Hz時,合金的阻尼值從0.0283(x=0)提高到0.0355(x=0.5),峰溫在230℃左右。
[Abstract]:The Ti-36Nb-2Ta-3Zr-xO alloy was prepared by vacuum nonconsumptive melting method. The effect of oxygen content on the structure of solid solution Ti-36Nb-2Ta-3Zr-xO alloy was studied by means of X-ray diffraction (XRD), universal testing machine and dynamic thermomechanical analysis (DMA). The influence of mechanical properties and damping behavior. The results show that oxygen can inhibit 偽 "phase. The alloy exhibits the characteristics of Snoek relaxation type damping and has good high temperature damping property. The damping value of the alloy increases with the increase of oxygen content, but the peak temperature does not change obviously. When the test frequency is 1.0 Hz, the damping value of the alloy is increased from 0.0283 (XN 0) to 0.0355 (XN 0.5), and the peak temperature is about 230 鈩，

本文編號：2235145