广州化工
廣州化工
엄주화공
Guangzhou Chemical Industry
2015年
21期
107-109
,共3页
1Cr13不锈钢%混合碳酸盐%腐蚀机理%不锈钢腐蚀
1Cr13不鏽鋼%混閤碳痠鹽%腐蝕機理%不鏽鋼腐蝕
1Cr13불수강%혼합탄산염%부식궤리%불수강부식
1 Cr13 stainless steel%mixed carbonate%corrosion mechanism%corrosion of stainless steel
通过分析1Cr13不锈钢在750℃ Li-Na-K三种混合碳酸熔融盐中的腐蚀动力学曲线和热腐蚀后的形貌和物相组成,讨论了1Cr13不锈钢在这三种熔盐中的腐蚀机理,并进行了对比,分析了不同组成的Li-Na-K碳酸盐熔盐体系对不锈钢腐蚀的影响。结果表明: Li2 CO3能够减缓腐蚀,阻止腐蚀的进一步进行,具有保护性,减缓表面裂纹出现的可能性;而K2 CO3能够增大氧化膜的溶解性,具有一定的破坏性。
通過分析1Cr13不鏽鋼在750℃ Li-Na-K三種混閤碳痠鎔融鹽中的腐蝕動力學麯線和熱腐蝕後的形貌和物相組成,討論瞭1Cr13不鏽鋼在這三種鎔鹽中的腐蝕機理,併進行瞭對比,分析瞭不同組成的Li-Na-K碳痠鹽鎔鹽體繫對不鏽鋼腐蝕的影響。結果錶明: Li2 CO3能夠減緩腐蝕,阻止腐蝕的進一步進行,具有保護性,減緩錶麵裂紋齣現的可能性;而K2 CO3能夠增大氧化膜的溶解性,具有一定的破壞性。
통과분석1Cr13불수강재750℃ Li-Na-K삼충혼합탄산용융염중적부식동역학곡선화열부식후적형모화물상조성,토론료1Cr13불수강재저삼충용염중적부식궤리,병진행료대비,분석료불동조성적Li-Na-K탄산염용염체계대불수강부식적영향。결과표명: Li2 CO3능구감완부식,조지부식적진일보진행,구유보호성,감완표면렬문출현적가능성;이K2 CO3능구증대양화막적용해성,구유일정적파배성。
The phase composition and morphology of the 1 Cr13 stainless steel in 750℃ Li-Na-K on three combined carbonate molten salt corrosion and hot corrosion kinetics were analyzed. The corrosion mechanism of 1 Cr13 stainless steel in these three kinds of molten salt was discussed, and the effects of different composition of Li-Na-K carbonate molten salt corrosion were compared. The results showed that Li2 CO3 can slow corrosion, prevent further corrosion and protective possibility of surface cracks mitigation, K2 CO3 was capable of increasing the solubility of the oxide film, could destructive the surface.