CAJ | 학술논문

　　制备了一种以 FeCrAl 合金为芯层、PdY 合金为覆层的复合材料丝材。用金相显微镜、X射线衍射仪和电子探针仪观察、分析了复合丝材在850℃大气退火不同时间后的界面结构和界面扩散。由于各元素的扩散和相互作用，界面层中有3种新相生成，新相对各元素的界面扩散有很大的影响。Fe、Cr、Al、Pd的扩散层深度ξ和退火时间t遵循如下关系：ξ=k?3 t (k是元素的扩散速度常数)。
　　제비료일충이 FeCrAl 합금위심층、PdY 합금위복층적복합재료사재。용금상현미경、X사선연사의화전자탐침의관찰、분석료복합사재재850℃대기퇴화불동시간후적계면결구화계면확산。유우각원소적확산화상호작용，계면층중유3충신상생성，신상대각원소적계면확산유흔대적영향。Fe、Cr、Al、Pd적확산층심도ξ화퇴화시간t준순여하관계：ξ=k?3 t (k시원소적확산속도상수)。
A PdY/FeCrAl composite wire was prepared. After heating the composite wire in atmosphere at 850℃, its interface structure and interface diffusion were observed and analyzed by the metallographic microscope, X-ray diffraction and electron probe. Owing to the elemental diffusion and interaction, three new phases were appeared in the interface, which greatly influence on the elements diffusion. The relationship of the diffusion layer depth (ξ) of Fe, Cr, Al and Pd with the heating time(t) obeys the following rule: ξ=k?3 t (k is the diffusion constants of the elements).