通过点蚀试验、缝隙腐蚀试验和盐雾试验，研究了904L不锈钢表面未涂覆、半涂覆和全涂覆EB104/EB202涂层试样在不同含量的FeCl₃溶液中的腐蚀行为。结果表明：随着FeCl₃含量的增加，未涂覆EB104/EB202涂层试样的点蚀程度和缝隙腐蚀程度不断加剧。对于半涂覆EB104/EB202涂层试样，其缝隙区、未涂覆区和涂覆区的腐蚀程度依次降低；缝隙区出现严重的点蚀和缝隙腐蚀，且腐蚀程度也随着FeCl₃含量的增加而加剧。全涂覆EB104/EB202涂层试样具有良好的耐点蚀、缝隙腐蚀和盐雾腐蚀性能。

Using pitting corrosion, crevice corrosion and salt-spray tests, the corrosion behavior of 904L stainless steel samples with the surfaces uncoated, half-coated and full-coated with EB104/EB202 was investigated in FeCl₃ solution with different FeCl₃ concentrations. The results show that the corrosion degree of the EB104/EB202 uncoated samples became worse with the increase of FeCl₃ concentration both in pitting corrosion and in crevice corrosion. For the EB104/EB202 half-coated samples, the corrosion degree declined in the crevice zone, uncoated zone and full-coated zone in sequence. Pitting and crevice corrosion appeared together in the crevice zone, and the corrosion degree of the half-coated samples also became worse with the increase of FeCl₃ concentration. The EB104/EB202 full-coated samples exhibited good resistance to pitting corrosion, crevice corrosion and salt-spray corrosion.