L245NS钢在湿硫化氢环境下腐蚀行为研究  

Corrosion Behavior of L245NS Steel in Wet Hydrogen Sulfide Environment

作　　者：任艳辉[1] 黄继超[1] 蒲哲 刘永良[1] 刘建[1] 曾云帆 REN Yan-hui;HUANG Ji-chao;PU Zhe;LIU Yong-liang;LIU Jian;ZENG Yun-fan(Northeast Sichuan Gasfield,Petrochina Southwest Oil and Gas Field Company,Dazhou 63500,China;Xi'an Maurer Petroleum Engineering Laboratory Co.,Ltd.Xi'an 710065,China)

机构地区：[1]中国石油西南油气田分公司川东北气矿,四川达州635000 [2]西安摩尔石油工程实验室股份有限公司,陕西西安710065

出　　处：《全面腐蚀控制》2022年第7期109-113,共5页Total Corrosion Control

摘　　要：为了研究某地采用的L245NS管线钢在日益增高的湿H_(2)S浓度下的服役状态,参考GB/T9711-2017、GB/T8650-2015、GB/T4157-2017及NACETM0177-2016对L245NS材料管线(母材)及焊管段的性能进行评价。结果表明:实验所用L245NS材料在饱和H_(2)S状态下,仍具有较好的抗氢致开裂(HIC)及应力腐蚀(SCC)能力,并讨论了其腐蚀机理。In order to study the material adaptability of L245NS pipeline steel in wet H_(2)S environment,the properties of l245NS pipeline(base metal) and weld Welded pipe section evaluated with reference to GB/T 9711-2017,GB/T 8650-2015,GB/T 4157-2017 and NACE tm0177-2016.The results show that l245ns material used in the experiment has good resistance to hydrogen induced cracking(HIC) and stress corrosion(SCC),and its corrosion mechanism is discussed.

关 键 词：L245 裂纹 硫化氢 非金属夹杂 HIC SCC 

分 类 号：TE89[石油与天然气工程—油气储运工程]