0Cr18Ni5和AF1410高强度钢的腐蚀行为研究  

Corrosion Behavior of High Strength Steels 0Cr18Ni5 and AF1410

作　　者：刘建华[1] 尚海波[2] 陶斌武[1] 李松梅[1] 

机构地区：[1]北京航空航天大学材料科学与工程学院,北京100083 [2]沈阳飞机制造公司,沈阳110041

出　　处：《材料工程》2004年第8期29-31,共3页Journal of Materials Engineering

摘　　要：采用失重法和 XRD法研究了 0 Cr18Ni5钢和 AF14 10钢在中性盐雾环境中的耐蚀性能。结果发现 0 Cr18Ni5钢由于高含量的 Cr元素而只发生了轻微的点蚀 ,而 AF14 10钢则发生了严重的全面腐蚀 ,腐蚀产物主要由 Fe OOH和Fe3O4 组成。采用恒载荷应力腐蚀拉伸和剩余力学性能测试法 ,并结合 SEM断口形貌分析 ,研究了两种高强钢在3.5 % Na Cl (质量分数 )水溶液中应力腐蚀行为。结果表明 ,0 Cr18Ni5钢和 AF14 10钢在该环境中都表现出应力腐蚀敏感性。最后 ,结合实验结果提出了一种简易快速评价材料抗应力腐蚀性能的方法。Corrosion resistance of two high strength steels in neutral salt spray test (NSST) was studied by mass loss and X-ray diffraction (XRD) .Pitting corrosion was found on the surface of 0Cr18Ni5 steel, and severe general corrosion on the surface of AF1410 steel. The susceptibility to stress corrosion cracking (SCC) of the two steels in 3.5% NaCl (mass fraction) solutions was studied by constant load tensile and loss of strength and ductility. Both of the steels exhibited susceptibility to SCC. A simple method for evaluating SCC resistance of materials was put forward.

关 键 词：高强钢 力学性能 应力腐蚀(SCC) 恒载荷拉伸法 

分 类 号：TG172.9[金属学及工艺—金属表面处理]