10.3969/j.issn.1003-8620.2004.03.020
JT345耐大气腐蚀塔桅高强度结构钢的耐腐蚀性能
对JT345耐大气腐蚀塔桅结构钢(最大值%:0.16C,0.45Si,1.40Mn,0.035P,0.030S,0.4Cu,0.8Cr,0.02Nb)进行室内快速腐蚀、电化学腐蚀和室外大气曝晒腐蚀试验以及钢表面锈层分析.试验结果表明,JT345钢盐雾(0.5%NaCl,35 ℃)和干湿交替(0.3%NaCl+0.1 g/L Na2SO4+0.1 g/L Na2SO3,室温)年腐蚀速率均小于0.6 mm,室外大气曝晒腐蚀速率为0.025~0.046 mm/a,达到Corten A钢(%:0.10C, 0.40Si, 0.48Mn, 0.094P, 0.019S, 0.52Cr, 0.34Ni, 0.32Cu)的实物水平.JT345钢的强度σb 630 MPa,σs 465 MPa,高于Corten A钢的强度(σb 495 MPa,σs 345 MPa,δ5 31%),并具有良好的塑性(δ5 21%).
耐大气腐蚀钢、高强度、盐雾腐蚀、电化学腐蚀
25
TG1(金属学与热处理)
2004-06-11(万方平台首次上网日期,不代表论文的发表时间)
共3页
56-58