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題 名 | IF鋼在不同酸液中之腐蝕行為=Corrosion Behavior of IF Steel in Various Acid Solutions |
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作 者 | 黃聿明; 吳臺一; | 書刊名 | 鑛冶 |
卷 期 | 48:1=185 2004.03[民93.03] |
頁 次 | 頁136-142 |
分類號 | 440.365 |
關鍵詞 | IF鋼; 硫酸; 鹽酸; 硝酸; 腐蝕速率; 氧化鐵; SEM; FTIR; XRD; IF stell; H[feaf]SO[feb2]; Hcl; HNO[feb0]; Corrosion rate; Fe[feb0]O[feb2]; |
語 文 | 中文(Chinese) |
中文摘要 | 本文旨在研究IF鋼於不同酸液中之腐蝕行為,結果發現:IF鋼於鹽酸溶液中之腐蝕速率隨鹽酸濃度之增加而增加。12M之硝酸溶液對IF鋼具最強腐蝕性,而最低(0.1M)及最高(16M)濃度之硝酸溶液對IF鋼之腐蝕性則相對較弱。硫酸對IF鋼之腐蝕速率則由低濃度至高濃度呈現極大變化當硫酸濃度由0.1M漸增至3M時腐蝕速率亦隨之增加,爾後腐蝕速率減小,至硫酸濃度為8M時反而呈現極大之重量增加。以XRD分析表面腐蝕層未見明顯繞射峰,惟採用EDS結合FTIR分析得知H2SO4/8M-24hr.情況下試片表面之腐蝕層為Fe3O4。由SEM觀察發現腐蝕速率較大之條件,如HCl/12M-1mi.及HNO3/12M-min.處理過後,試片表面出現特定結晶方位之蝕孔。由本研究之初步成果發現:室溫下可以到用中等濃度(如8M)之硫酸液來處理鋼鐵,使之表面生成一緻密之氧化鐵(Fe3O4)被覆層,達到防蝕之效果。 |
英文摘要 | IF (interstitials free) steel was processed in various aqueous acid solutions to observe the corrosion behavior. The corrosion rate of IF steel in HCl(aq) increases with the concentration of HCl. HNO3(aq) with concentration of 12M was observed to be the most aggressive for IF steel. The corrosion rate of IF steel in H2SO4 solution increases as the concentration of H2SO4 increases from 0.1M to 3M and then decreases gradually with the concentration. A large amount of weight gain even observed when the concentration was 8M. the protective layer produced during H2SO4/8M-24hrs. treatment was analyzed to be Fe3O4 by using SEM (Scanning Electron Microscope), EDS (Energy Dispersive Spectroscopy) and FTIR (Fourier Transform Infrared). Etch pits with crystallographic symmetry were observed on the specimens treated with conditions HCl/12M-1min. and HNO3/12M-1min. Processing condition H2SO4/8M-24hrs. could be employed in corrosion prevention for IF steel under ambient conditions. |
本系統中英文摘要資訊取自各篇刊載內容。