【摘要】：為了研究溫度對(duì)修復(fù)層性能的影響,采用電子束物理氣相沉積(EB-PVD)技術(shù)在TC11平板試樣上制備了修復(fù)層,利用X射線衍射儀(XRD)、掃描電子顯微鏡(SEM)和能譜儀(EDS)研究了不同溫度下修復(fù)層的成分及組織形貌變化,并通過(guò)振動(dòng)疲勞試驗(yàn)等方法研究了溫度對(duì)修復(fù)層振動(dòng)疲勞壽命的影響。結(jié)果表明:在600~800℃進(jìn)行修復(fù)時(shí),修復(fù)層為柱狀晶組織。修復(fù)層的致密性隨溫度升高而變大,這種變化也會(huì)影響修復(fù)后試片的振動(dòng)疲勞性能,修復(fù)層柱狀晶結(jié)構(gòu)間隙處形成的裂紋源會(huì)造成試片疲勞性能的下降。
[Abstract]:In order to study the effect of temperature on the properties of the repair layer, the repair layer was prepared on the TC11 plate by electron beam physical vapor deposition (EB-PVD) technique. (XRD), scanning electron microscope (SEM) and energy dispersive spectrometer (EDS) were used to study the composition and microstructure of the repair layer at different temperatures. The effect of temperature on the vibration fatigue life of the repair layer was studied by means of vibration fatigue test. The results show that the repair layer is columnar structure at 600 鈩，

本文編號(hào)：2217812