Development of a physical simulation method of steel welds for fatigue crack propagation studies, on heat affected zones
Keywords:fatigue crack propagation, HAZ microstructural variation, HAZ physical simulation, structural steel welding
AbstractIn order to study the fatigue crack propagation in the Highly Affected Zone (HAZ) of structural steel weld joints, test specimens of 90 mm x 49.5 mm x 7 mm in size were used to carry out the simulations, for which a special procedure was required to be developed in the Gleeble system. By doing so, the fine grain zone, the coarse grain zone and the multi-pass zone of a weld joint were successfully reproduced separately, on different samples of the corresponding base metal, produced by FCAW. The simulated zones were reproducible, homogeneous, defect-free, residual-stress-free and large enough, besides their microstructural characteristics (such as grain size and phase percentage) were very close to their real counterparts, which made it possible to study the actual effect of HAZ microstructure on the fatigue crack propagation rate in these zones for the first time. Therefore, the development enabled to significantly applications and the advantages increase, that this technique may have, while allowing to improve the understanding of fatigue behavior in steel weld joints.
J. Barsom and S. Rolfe, Fracture and fatigue control in structures: applications of fracture mechanics. United Kingdom: Butterworth-Heinemann, 1999.
D. F. Atehortua-López, “Propagación de grietas por fatiga en uniones soldadas por FCAW de aceros de bajo carbono y aceros de baja aleación y la aplicabilidad del ultrasonido como herramienta de monitoreo en este tipo de estudios”. Tesis de doctorado, Facultad de Ingeniería, Universidad del Valle, Cali, Colombia, 2016.
T. Lassen and N. Recho, Fatigue Life Analyses of Welded Structures: Flaws. London: Wiley-ISTE, 2006.
ASM International Handbook Committee, ASM Handbook: Fatigue and Fracture, vol. 19, ASM International, 1996.
Y. Adonyi, “Heat-Affected Zone Characterization by Physical Simulations”, Welding Journal, vol. 85 (10), pp. 42-47, Oct. 2006.
J. A. Gianetto, F. Fazeli, Y. Chen et al., “Microstructure and Toughness of Simulated Grain Coarsened Heat Affected Zones in X80 Pipe Steels”, 10th International Pipeline Conference, Calgary, Canada, 2014.
A. Polyakov, D. Gunderov, V. Sitdikov et al., “Physical Simulation of Hot Rolling of Ultrafine Grained Pure Titanium”, Metallurgical and Materials Transactions B, vol. 45 (6), pp. 2315-2326, Dec. 2014. DOI: http://dx.doi.org/10.1007/s11663-014-0133-9.
M. Rahimian, S. Milenkovic, L. Maestro et al., “Physical Simulation of Investment Casting of Complex Shape Parts”, Metallurgical and Materials Transactions A, vol. 46 (5), pp. 2227-2237, May. 2015.
Z. Gao and J. Niu, “Study on microstructure and impact ductility of simulated weld HAZ of high-strength wear-resistant steel NM360”, Reviews on advanced materials science, vol. 33 (3), pp. 232-237, Nov. 2013.
B. Liu, J. Qu and W. Sun, “Effects of thermal cycle on mechanical properties and fractography in HAZ of HQ130 steel”, Acta Metallurgica Sinica, vol. 17 (3), pp. 274-278, Jun. 2004.
C. Zhou and C. D. Lundin, “A Comparison of Published Haz Thermal Simulation Methods Used to Derive Weld Haz Thermal Cycles”, Acta Metallurgica Sinica, vol. 13 (1), pp. 223-232, Feb. 2000.
G. Atkins, D. Thiessen, N. Nissley and Y. Adonyi, “Welding Process Effects in Weldability Testing of Steels”, Welding Journal, vol. 81 (4), pp. 61s-68s, Apr. 2002.
R. Blondeau, Metallurgy and Mechanics of Welding: Processes and Industrial Applications. London: ISTE Ltd. and John Wiley & Sons, Inc., 2008.
G. E. Dieter, Mechanical Metallurgy: SI Metric Edition. Boston: McGraw-Hill, 1988.
How to Cite
All articles included in the Revista Facultad de Ingeniería are published under the Creative Commons (BY) license.
Authors must complete, sign, and submit the Review and Publication Authorization Form of the manuscript provided by the Journal; this form should contain all the originality and copyright information of the manuscript.
The authors who publish in this Journal accept the following conditions:
a. The authors retain the copyright and transfer the right of the first publication to the journal, with the work registered under the Creative Commons attribution license, which allows third parties to use what is published as long as they mention the authorship of the work and the first publication in this Journal.
b. Authors can make other independent and additional contractual agreements for the non-exclusive distribution of the version of the article published in this journal (eg, include it in an institutional repository or publish it in a book) provided they clearly indicate that the work It was first published in this Journal.
c. Authors are allowed and recommended to publish their work on the Internet (for example on institutional or personal pages) before and during the process.
review and publication, as it can lead to productive exchanges and a greater and faster dissemination of published work.
d. The Journal authorizes the total or partial reproduction of the content of the publication, as long as the source is cited, that is, the name of the Journal, name of the author (s), year, volume, publication number and pages of the article.
e. The ideas and statements issued by the authors are their responsibility and in no case bind the Journal.