Affiliation:
1. Northeastern University
Abstract
Anti-H2S X70 pipeline steel was developed. The microstructure of X70 pipeline steel was studied by the analysis of OM, SEM and TEM. The precipitation behavior was discussed. The comprehensive mechanical properties, HIC and SCC performance were systematically studied. The results indicated that the microstructure of the experimental steel was mainly acicular ferrite and granular bainite. The second phase precipitates dispersedly distributed in the matrix. The experimental steel possessed excellent strength, plasticity, low temperature toughness and low yield ratio. And therefore, the X70 pipeline steel in the study is suitable for sour service with the high strength, excellent toughness and low HIC&SSC susceptibility.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Reference10 articles.
1. Glover A, Application of grade 550 (X80) and grade 690 (X100) in arctic climates, Proceeding of the International Pipe Dreamerps Conference, Yokohama: Scientific Surveys Ltd , UK, 2002, 33-52.
2. Palmiere E J, Garcia C I, De Ardo A J, The influence of niobium supersaturation in austenite on the static recrystallization behavior of low carbon microalloyed steels, Metallurgical and Materials Transactions, 1996, 27(4): 951-960.
3. Dutta B, valdes E, Sellars C M, Mechanism and kinetics of strain induced precipitation of Nb(C, N) in austenite, Acta Metallurgica et Materialia, 1992, 40(4): 653-662.
4. De Ardo A J, Microalloyed strip steels for the 21st century, Materials Science Forum, Donostia, Proceedings of the international conference on microalloying in steels , 1998, 284(2): 15-26.
5. Jdutta B, Sellars C M, Effect of composition and process variables on Nb(C, N) precipitation in niobium microalloyed austenite, Materials Science and Technology, 1987, 3(3): 197-206.
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献