耐H_2S腐蚀的稀土合金钢(09Cr2AlMoRE)  

H_2S-resisting Rare Earth Alloy (09Cr2AlMoRE)

作　　者：束润涛 朱启鹏 章晓浒[2] 卜华金 陆戴丁[2] 徐鹏程[2] 冉高举[3] 

机构地区：[1]湖北长江石化设备制造厂,湖北省洪湖市433226 [2]合肥通用机械研究所,安徽省合肥市230031 [3]荆门石化总厂防腐蚀研究所,湖北省荆门市448039

出　　处：《石油化工腐蚀与防护》2001年第4期21-25,共5页Corrosion & Protection In Petrochemical Industry

摘　　要：在原抗H2 S应力腐蚀专用钢 12Cr2AlMoV的基础上进行元素优化 ,用稀土 (RE)元素代替钒 (V) ,同时降低C、S、P的含量 ,制得的稀土合金钢 0 9Cr2AlMoRE的冲击韧性、焊接性能和耐腐蚀性能明显优于12Cr2AlMoV ,经 72 0小时H2 S恒载应力腐蚀试验 ,0 9Cr2AlMoRE基体及焊缝的恒负荷拉伸应力腐蚀试验临界拉伸断裂应力σth分别为 0 .75σs 和 0 .70σs,远高于美国腐蚀工程师协会NACEMRO175 - 97中规定的σth≥ 0 .45σs的要求 ,适合在H2The rare earth alloy was produced by elemental optimization of the special 12Cr2AlMoV steel resisting H 2S, replacement of V with RE and reduction of C, S and P. The impact ductility, weldability and corrosion resistance of 09Cr2AlMoRE were markedly superior to those of 12Cr2AlMoV. After 72 hours' constant load-rate H 2S stress corrosion testing, the critical tensile cracking stress σ th of the base of 09Cr2AlMoRE and weld seam was 0.75σ s and 0.70σ s respectively which were much higher than σ th ≥0.45σ s as specified in NACE MRO175-97. This material has performed well in corrosive H 2S environment.

关 键 词：耐腐蚀 稀土合金钢 试验 耐硫化氢腐蚀 09CR2ALMORE 

分 类 号：TE980.1[石油与天然气工程—石油机械设备]