On the Microstructure of Plate Steels for API-5L X120 Applications
-
Published:2012-01
Issue:
Volume:706-709
Page:17-23
-
ISSN:1662-9752
-
Container-title:Materials Science Forum
-
language:
-
Short-container-title:MSF
Author:
Garcia C. Isaac1, Hua Ming Jian1, Liang X.1, Suikannen P.2, DeArdo Anthony J.1
Affiliation:
1. University of Pittsburgh 2. University of Oulu
Abstract
The very high strength now achievable in low carbon HSLA steel plates is caused by the formation of bainite or martensite during the post-hot rolling cooling in interrupted direct quenching. Modern electron optical examination, especially FEG-SEM, has allowed the microstructural features such as packet, block and lath dimensions and crystallography to be quantitatively determined. Several recent studies have attempted to relate the strength and toughness to these features, with limited success. However, one observation is clear, these microstructural features scale with the prior-austenite grain size and state of recrystallization. The role of microalloying, beyond grain refinement, remains inconclusive. This paper will discuss these microstructures and suggest possible ways of further refining them.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Reference25 articles.
1. H. Asahi et al., Development and Properties of Ultra High-strength UOE Pipeline, Proc. IPC 2004, International Pipeline Conference, Oct. 4-8, 2004, Calgary, Alberta, Canada, (ASME 2004), paper # IPC04-0230. 2. D. Bai, L. Collins, F. Hamad, X. Chen, and R. Klein, Microstructure and Mechanical Properties of High Strength Linepipe Steels, Materials Science & Technology 2007 Conference and Exhibition (MS&T '07), Sept. 16-20, 2007, COBO Center, Detroit, Michigan USA, Proceedings, Steel Product Metallurgy and Applications, Organized by Brian D. Nelson, Product Metallurgy I, 355. 3. K. Cho et al., Development of the 590 - 780 - 980 Nb-Bearing Dual-Phase Steels for Production on Continuous Galvanizing Lines, Proc. International Conference on Microalloyed Steels: Processing, Microstructure, Properties and Performance, July 16-19, 2007, Pittsburgh, PA, (Edited by DeArdo A J and Garcia C I, AIST, Warrendale, PA, 2007), 313. 4. M. Gomez, C. I. Garcia, D. M. Haezebrouck, and A. J. DeArdo, Microstructural Evolution During Continuous Galvanizing and Final Mechanical Properties of High Al-Low Si TRIP Steels, Materials Science & Technology 2007 (MS&T '07), Sept. 16-20, 2007, COBO Center, Detroit, Michigan USA, Automotive: Advanced High-Strength and Other Specialty Sheet Steel Products for the Automotive Industry, Organized by J. Fekete, C. I. Garcia, J. Speer and M. Walp, Processing and Properties of TRIP Steels, 1. 5. F.B. Pickering: Physical Metallurgy and the Design of Steels, Applied Science Publishers Ltd., Barking, Essex, United Kingdom, (1978).
Cited by
3 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
|
|