CAJ | 학술논문

利用等离子喷涂方法在不锈钢基体上喷涂铁铝混合粉获得了铁铝涂层，并对涂层的组织进行了分析。研究结果表明，Fe粉和Al粉熔化后由喷枪高速喷出，沉积在基体上可发生部分化合反应，生成少量的铁铝金属间化合物，涂层与基体结合良好。600℃扩散处理后，涂层中的铁铝金属间化合物增多。800℃和1000℃扩散处理后，Al全部反应，Fe有剩余，涂层由Fe、铁铝金属间化合物和氧化物组成。
이용등리자분도방법재불수강기체상분도철려혼합분획득료철려도층，병대도층적조직진행료분석。연구결과표명，Fe분화Al분용화후유분창고속분출，침적재기체상가발생부분화합반응，생성소량적철려금속간화합물，도층여기체결합량호。600℃확산처리후，도층중적철려금속간화합물증다。800℃화1000℃확산처리후，Al전부반응，Fe유잉여，도층유Fe、철려금속간화합물화양화물조성。
The coatings of mixed iron aluminides and oxide phases on 18-8 stainless steel substrates were obtained by air plasma spraying mixed powder of iron and aluminium．Microstructures of coatings were investigated by optical microscope，SEM and XRD．The results show that reactions between iron and aluminium sprayed through plasma torch in high speed take place when melted spray of iron and aluminium impinge on the 18-8 stainless steel substrates．Microstructure observations also find the joint of the coatings and substrates is fine and no cracks have been observed．The amount of iron aluminides in coatings increases after the diffusion treatment at 600℃．After the coatings were diffusionally treated at 800℃ and 1000℃，pure Al in coatings disappears completely，but pure Fe still remains，the coatings consist of pure Fe，iron aluminides and oxide phases．