铌离子注入锆-4合金的高压釜蒸汽腐蚀行为(英文)  

Autoclave Steam Corrosion Performance of Nb^+ Implanted Zircaloy-4

作　　者：薛祥义[1] 白新德[1] 周青山[2] 田振业[2] 

机构地区：[1]清华大学材料科学与工程系,北京100084 [2]西北有色金属研究院,陕西西安710016

出　　处：《稀有金属材料与工程》2006年第1期34-38,共5页Rare Metal Materials and Engineering

摘　　要：本文研究了铌离子注入对锆-4合金在 400℃和500℃、10.3MPa高压釜中蒸汽腐蚀行为的影响。试验结果表明:铌离子注入能够改善锆-4合金抗 400℃和500℃高压蒸汽腐蚀性能,并且,比较而言对500℃蒸汽腐蚀性能提高的程度更为显著。为了理解铌离子注入影响的机理,应用SEM、XRD、XPS等分析手段分析了氧化膜的形貌、相结构、注入元素的价态及组成。The influences of niobium ion implantation on autoclave steam corrosion performance were studied at temperatures of 400℃ and 500℃, pressure of 10.3 MPa respectively. Experimental results prove that blb ion implantation can improve the corrosion resistance of Zircaloy-4 against 400℃ and 500℃ high pressure steam. The improving extent of corrosion resistance at 500℃ was much more remarkable compared with that of 400℃. In order to understand the influencing mechanism, scanning electron microscope （SEM）, X-ray diffraction （XRD）, X-ray photoemission spectroscopy （XPS） were employed to analyze the morphology, phase structure of the surface oxide film, composition and valence of implanted element, respectively.

关 键 词：锆-4合金 铌离子注入 蒸汽腐蚀 

分 类 号：TG172[金属学及工艺—金属表面处理]