期刊论文

中文

核动力工程

0258-0926

2021

42

S1

121-127

10.13832/j.jnpe.2021.S1.0121

核反应堆系统设计技术重点实验室基金（HT-KFKT-10-2018002）；

本校为第一机构

采用电弧离子镀膜技术在Zr-4合金表面制备4组不同基体偏压的铬（Cr）涂层,研究基体偏压对Zr-4合金高温抗氧化性能的影响。利用扫描电子显微镜（SEM）和X射线衍射（XRD）技术对Cr涂层的微观结构和物相构成进行表征,分析基体偏压对Cr涂层高温氧化性能的影响。研究结果表明,基体偏压对Cr涂层晶体结构、表面和截面微观形貌、结合强度、抗高温氧化性能均有非常显著影响;Cr涂层经高温氧化后主要分化为3层结构:Cr2O3氧化层、残余Cr层和Cr-Zr扩散层;基体偏压为-100 V时涂层表面团聚物尺寸最小,表面未出现明显裂纹,涂层中仍留有残余Cr层,氧化增重最低,涂层致密性和结合性能最好。因此,基体偏压为-100 V时...

Four groups of Cr coatings with different substrate bias are prepared on the surface of Zr-4 alloy by using arc ion plating technology to study the effect of substrate bias on the high-temperature oxidation resistance of Zr-4 alloy. Scanning electron microscope (SEM) and X-ray diffraction (XRD) are used to characterize the microstructure, and the defects of Cr coating with different substrate bias after oxidation at 1200℃ are studied. The results showed that substrate bias had significant effect on the crystal structure, surface morphology, th...