采用扫描电镜(SEM)、能谱仪(EDS)、X射线结构衍射仪(XRD)及拉伸实验等方法,研究了铀(U)上磁控溅射Al镀层在480℃,2小时,60 MPa条件下热等静压(HIP)处理对界面特性以及膜基结合强度的影响.结果表明：经HIP处理后,镀层密度达到了其理论密度；镀层由柱状晶转变为致密的层状结构,在界面处Al、U元素形成了互扩散,并生成了金属间化合物UAl2和UAl3；膜基结合形成了冶金结合,结合强度有所增强.
The effect of hot isostatic pressing(HIP)on interface characteristics and adhesion strength of aluminum coating on uranium substrate were investigated by scanning electron microscopy(SEM),energy dispersive spectrometer(EDS),X-ray diffraction(XRD)and tensile tests.The aluminum coating was prepared by magnetron sputtering on uranium and then HIP-treated under 60MPa at 480℃ for 2 h.The results show that after HIP treatment,the density of the coating reaches its theory value,and the microstructure of which changes from a columnar structure to a lamellar one.Intermetallic compounds UAl3 and UAl2 were grown at the interface due to the interdiffusion of uranium and aluminum,forming a metallurgical bonding between the coating and substrate therefore the adhension strength increases.
参考文献
| [1] | |
| [2] | |
| [3] | |
| [4] | |
| [5] | |
| [6] | |
| [7] | |
| [8] | |
| [9] | |
| [10] | |
| [11] | |
| [12] | |
| [13] | |
| [14] | |
| [15] | |
| [16] | |
| [17] | |
| [18] | |
| [19] | |
| [20] | |
| [21] | |
| [22] | |
| [23] | |
| [24] | |
| [25] | |
| [26] | |
| [27] | |
| [28] |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%