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		Cr对Q420钢在高盐度大气环境下耐蚀性的影响
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			Effect of Cr on Corrosion Resistance of Q420 Steel in Atmosphere with High Salinity
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| 图3. 4种钢腐蚀72和360 h后的锈层截面SEM像 | 
| Fig.3. Cross sections of rust layers formed on Q420 (a, b), 2Cr (c, d), 5Cr (e, f) and 9Cr (g, h) steels after corrosion for 72 h (a, c, e, g) and 360 h (b, d, f, h) | 
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