CAJ | 학술논문

采用不同的喷涂工艺参数，分别在45钢基体上制备了电弧喷涂铁铝涂层，采用电子探针(EPMA)、X射线衍射(XRD)、光学显微镜和显微硬度计等仪器研究了气体爆燃铁铝涂层的表面形貌、显微硬度、涂层的成分和相结构，结果表明，喷涂工艺的改变明显影响喷涂层的相组成，随着单位时间内提供给粉末能量的减少，得到黑白相间的片层状结构，黑色相是Fe4Al13，白色相是FeAl；增加单位时间内提供给粉末的能量，可以得到均匀的微观组织，成分为FeAl。
채용불동적분도공예삼수，분별재45강기체상제비료전호분도철려도층，채용전자탐침(EPMA)、X사선연사(XRD)、광학현미경화현미경도계등의기연구료기체폭연철려도층적표면형모、현미경도、도층적성분화상결구，결과표명，분도공예적개변명현영향분도층적상조성，수착단위시간내제공급분말능량적감소，득도흑백상간적편층상결구，흑색상시Fe4Al13，백색상시FeAl；증가단위시간내제공급분말적능량，가이득도균균적미관조직，성분위FeAl。
Microstructure and phases of Fe-A1binary alloy coating sprayed on 1045 steel sheet bythe detonation spraying with different process parameters were investigated by metallography,electron probe and x-ray diffraction (XRD) methods.The results of analyses showed that the compositionof the coating, which included Fe-A1, Fe4Al13 and afew A12O3 phases, was different from the pristinepowder of Fe4Al13. The content of FeA1 decreasedwith the rising of the proportion of oxygen andacetylene and the decreasing of frequency of thegun firing. Micro-hardness tests indicated that itchanged inhomogeneously with the variation ofcontent of FeAl lamellar structure.