国产X80管线钢的H_2S应力腐蚀开裂行为_奚运涛.pdfVIP

27 2 腐蚀科学与防护技术 V o.l 19 N o. 2 2007 3 CORROSION SCIENCE AND PROTECTION TECHNOLOGY M ar. 2007 X80H S 2 1 1 2 2 1 奚运涛, 刘道新 , 蔡杭平 , 樊明峰 , 鲜宁 1 , 710072; 2, 065000 : , X80 H S ( SSCC) . 2 , ( HA Z ) , HA Z, , SSCCH 2 S, H2 S . : X80; ; ; H S; 2 : TG1729 : A : 2007) 020 10303 STRESS CORROSION CRACKING BEHAVIOR OF DOMESTIC X80 PIPELINE STEEL IN H S ENVIRONMENT 2 1 1 2 2 1 X I Y unao , L IU Daox in , CA I H angp ing , FAN M ingfeng , X IAN N ing 1Corro sion and P rotection R esearch L ab. , N orthw estern P oly techn ical Un iv ers ity, X ian 7 10072; 2Ch ina Petroleum P pi eline E ng ineering C orp oration, L ang ang 065000 Abstra t: T he su lfide induced s ress corrosion crack ing ( SSCC) behavior o f he w e ld seam and base m e al of pipe line s ee l X 80 was inves iga ed by using he 3po in bend load ing m e hod in H S env ironm en . 2 The resu l s show ha he hea affec ed zone ( HAZ ) is he m os sensi ive area o s ress corrosion cracking due o i s high hardness and coarse gra ined m icros ruc ure. T he rolling direc ion o f he base m e al has li le influence on he SSCC behav ior of he s eel show s liffle angular dependence of he samp les on he roll ing direc ion o f he s ee l p la e. The SSCC resis ance o