采用热模拟实验机、场发射扫描电子显微镜、电化学测试等试验方法,研究了开轧温度、终轧温度和卷取温度对氧化铁皮组织和耐蚀性能的影响规律.研究表明:热轧钢板表面氧化铁皮由3层结构组成,即最外层Fe2O3、中间层Fe3O4和最内层FeO.随着开轧温度和终轧温度的降低,FeO先共析转变的驱动力增大,FeO在整个氧化铁皮层中的含量逐渐减少,Fe2O3和Fe3O4含量逐渐增多.随着卷取温度由650℃降低到500℃,在FeO层中析出的Fe3O4粒子数量不断增加,粒子尺寸越来越细小.析出的Fe3O4越多,氧化铁皮的耐蚀性能越高.当卷取温度降低至450 ℃时,FeO发生了共析转变,生成片层状Fe+Fe3O4的共析组织,这些片层状组织形成微电池,使氧化铁皮的耐蚀性能急剧降低.
参考文献
| [1] | CHENRY;YUENWY D .Review of the high-temperature oxidation of iron and carbon steels in air or oxygen[J].Oxidation of Metals,2003,59(5/6):433-468. |
| [2] | R. Y. CHEN;W. Y. D. YUEN .Examination of oxide scales of hot rolled steel products[J].ISIJ International,2005(1):52-59. |
| [3] | 周贤良,朱敏,余慧燕,华小珍,叶志国.热处理工艺对热轧带钢氧化皮结构及其耐蚀性的影响[J].材料热处理学报,2011(07):139-144. |
| [4] | Weihua Sun;A. K. Tieu;Zhengyi Jiang;Cheng Lu .High temperature oxide scale characteristics of low carbon steel in hot rolling[J].Journal of Materials Processing Technology,2004(0):1307-1312. |
| [5] | BAUD J;FERRIER A;MANENC J .Study of magnetite film formation at metal-scale interface during cooling of steel produce[J].Oxidation of Metals,1978,12(04):331-342. |
| [6] | Kiyoshi KUSABIRAKI;Ryoko WATANABE;Tomoharu IKEHATA .high-temperature Oxidation Behavior and Scale Morphology of Si-containing Steels[J].ISIJ International,2007(9):1329-1334. |
| [7] | Gleeson B.;Hadavi S.M.M. .Isothermal transformation behavior of thermally-grown wustite[J].Materials at High Temperatures,2000(2):311-319. |
| [8] | CHEN RY;YUEN WYD .Oxidation of low-carbon steel in 17H2O-N2 at 900 ℃[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,2009,40A:3091-3107. |
| [9] | West GD;Birosca S;Higginson RL .Phase determination and microstructure of oxide scales formed on steel at high temperature.[J].Journal of Microscopy,2005(Pt.2):122-129. |
| [10] | Hiroshi TANEI;Yasumitsu KONDO .Effects of Initial Scale Structure on Transformation Behavior of Wustite[J].ISIJ International,2012(1):105-109. |
| [11] | CHEN RY;YUEN WYD .Oxidation of low-carbon,low-silicon mild steel at 450 ～ 900 ℃ under conditions relevant to hot-strip processing[J].Oxidation of Metals,2002,57(1/2):53-79. |
| [12] | 孙兆栋,杜敏,张静,蒋斌.316L不锈钢在海水中的阴极极化行为研究[J].材料科学与工艺,2011(01):36-40. |
| [13] | 聂向晖,李晓刚,杜翠薇,沈庆红.Q235碳钢在滨海盐土中腐蚀的电极过程特点[J].材料科学与工艺,2010(01):38-42. |
| [14] | KONDO Y .Effect of atmospheric conditions on copper behavior during high temperature oxidation of a steel containing copper[J].ISIJ International,2007,47(09):1309-1314. |
| [15] | H. OKADA;T. FUKAGAWA;H. ISHIHARA .Prevention of red scale formation during hot rolling of steels[J].ISIJ International,1995(7):886-891. |
| [16] | 张林,杜敏,刘吉飞,李妍,刘培林.海水中极化电位对X70钢氢脆敏感性的影响[J].材料科学与工艺,2011(05):96-101. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%