Microstructures and mechanical properties of 25Cr duplex stainless steel
DOI:
https://doi.org/10.55713/jmmm.v29i4.550คำสำคัญ:
Duplex stainless steel, Mechanical properties, Precipitatesบทคัดย่อ
Recently, the demand of duplex stainless steels has been continuously increased in different types of application, especially, tubing of heat exchanger, thermal generator, vessels and pumps. The duplex steel grades exhibit high strength property and excellent corrosion resistance. However, after welding and heat treatment their toughness and corrosion resistance could be significantly decreased due to the occurrences of various detrimental intermetallic phases like sigma phase. In this work, effect of heat treatment on microstructure and mechanical behavior of super duplex stainless steel grade SAF 2507 were investigated. Firstly, samples of the examined steel were heat-treated at the temperature of 850°C for different holding times. Then, microstructure evolutions of heat-treated samples were characterized by an optical and scanning electron microscopy. The emerged phases were identified, their phase fractions were determined and the Vickers hardness tests were performed for the different phase constituents. In addition, tensile tests and Charpy impact tests of heat-treated specimens were carried out. The steel samples subjected to the holding time of 90 min exhibited significantly deteriorated toughness property. This was caused by large amount of occurred brittle intermetallic precipitates.Downloads
เอกสารอ้างอิง
G. C. Chail and P. Kangas, “Super and hyper duplex stainless steels: structures, properties and applications,” Procedia Structural Integrity, vol. 2, pp. 1755-1762, 2016. DOI: https://doi.org/10.1016/j.prostr.2016.06.221
I. Weibull, “Duplex stainless steels and their application, particularly in centrifugal separators. Part A History & Development,” Materials and Design, vol. 8 (1), pp. 35-40, 1987. DOI: https://doi.org/10.1016/0261-3069(87)90058-6
C. C. Hsieh and W. Wu, “Overview of intermetallic sigma (σ) phase precipitation in stainless steels,” ISRN Metallurgy, vol. 2012, article ID 732471, 2012. DOI: https://doi.org/10.5402/2012/732471
F. Tehovnik, B. Arzensek, B. Arh, D. Skobir, B. Pirnar, and B. Zuzek, “Microstructure evolution in SAF 2507 super duplex stainless steel,” Materials and Technology, vol. 45, pp. 339-345, 2011.
J. O. Nilsson, “Super duplex stainless steels,” Materials Science and Technology, vol. 8, pp. 685-700, 1992. DOI: https://doi.org/10.1179/mst.1992.8.8.685
Z. H. Zhu, W. D. Zhang, X. H. Tu, X. J. Wang, and W. Li, “Effect of sigma phase precipitation on microstructure and properties of cast ZG0Cr26Ni5Mo3Cu3 duplex stainless steel under different heat treatments,” China Foundry, vol. 15 (3), pp. 182-188, 2018. DOI: https://doi.org/10.1007/s41230-018-7226-z
V. A. Hosseini, L. Karlsson, S. Wessman, and N. Fuertes, “Effect of sigma phase morphology on the degradation of properties in a super duplex stainless steel,” Materials (Basel), vol. 11 (6), pp. 933, 2018. DOI: https://doi.org/10.3390/ma11060933
N. Llorca-Isern, H. Lopez-Luque, and I. Lopez-Jiménez, M.V. Biezma, “Identification of sigma and chi phases in duplex stainless steels,” Materials Characterization, vol. 112, pp. 20-29, 2016. DOI: https://doi.org/10.1016/j.matchar.2015.12.004
J. Ding, E. H. Han, Z. Zhang, S. Wang, and J. Wang, “Influence of sigma phase on corrosion behavior of 316L stainless steel in high temperature and high pressure water,” Materials at high temperature, vol. 34(1), pp. 78-86, 2017. DOI: https://doi.org/10.1080/09603409.2016.1245470
Y. Wang, H. Sun, N. Li, Y. Xiong, and H. Jing, “Effect of sigma phase precipitation on the pitting corrosion mechanism of duplex stainless steels,” International Journal of Electrochemical Science, vol. 13, pp. 9868- 9887, 2018. DOI: https://doi.org/10.20964/2018.10.38
Y. J. Kim, L. S. Chumbley, and B. Gleeson, “Determination of isothermal transformation diagrams for sigma-phase formation in cast duplex stainless steels CD3MN and CD3MWCuN,” Metallurgical and Materials Transactions A, vol. 35(11), pp. 3377-3386, 2004. DOI: https://doi.org/10.1007/s11661-004-0174-9
G. S. Fonseca, P. M. Oliveira, M. G. Diniz, D. V. Bubnoff, and J. A. Castro, “Sigma phase in super duplex stainless steel: formation, kinetics and microstructural path,” Materials Research, vol. 20(1), pp. 249-255, 2017. DOI: https://doi.org/10.1590/1980-5373-mr-2016-0436
I. V. Aguiar, D. P. Escobar, D. B. Santos, and P. J. Modenes, “Microstructure characterization of a duplex stainless steel weld by electron backscattering diffraction and orientation imaging microscopy techniques,” Revista Materia, vol. 20(1), pp. 212-226, 2015. DOI: https://doi.org/10.1590/S1517-707620150001.0022
S. N. Li, J. B. Liu, and B. X. Liu, “Phase stability and mechanical properties of sigma phase in Co-Mo system by first principles calculations” Computational Materials Science, vol. 98, pp. 424-429, 2015. DOI: https://doi.org/10.1016/j.commatsci.2014.11.049
A. Kisasoz, A. Karaaslan, Y. Bayrak, “Effect of etching methods in metallographic studies of duplex stainless steel 2205,” Metal Science and Heat Treatment, vol. 58, pp. 9-12, 2017. DOI: https://doi.org/10.1007/s11041-017-0081-5
K. D. Ramkumar, A. H. Dagur, A. A. Kartha, M. A. Subodh, C. Vishnu, D. Aruna, M. G. V. Kumar, W. S. Abraham, A. Chatterjee, J. Abraham, and J. Abraham, “Microstructure, mechanical properties and biocorrosion behavior of dissimilar welds of AISI 904L and UNS S32750,” Journal of Manufacturing Processes, vol. 30, pp. 27-40, 2017. DOI: https://doi.org/10.1016/j.jmapro.2017.09.001
S. K. Kim, K. Y. Kang, M. S. Kim, and J. M. Lee, “Low-temperature mechanical behavior of super duplex stainless steel with sigma precipitation,” Metals, vol. 5(3), pp.1732- 1745, 2015. DOI: https://doi.org/10.3390/met5031732
A. R. Akisanya, U. Obi, and N. C. Renton, “Effect of ageing on phase evolution and mechanical properties of a high tungsten superduplex stainless steel,” Materials Science and Engineering A, vol. 535, pp. 281-289, 2012. DOI: https://doi.org/10.1016/j.msea.2011.12.087
D. Zou, Y. Han, W. Zhang, and J. H. Yu, “Sigma phase precipitation and properties of super-duplex stainless steel UNS S32750 aged at the nose temperature,” Journal of Wuhan University of Technology-Mater. Sci. Ed., vol. 26(2), pp. 182-185, 2011. DOI: https://doi.org/10.1007/s11595-011-0193-5
G. Argandona, J. F. Palacio, C. Berlanga, M. V. Biezma, P. J. Rivero, J. Pena, and R. Rodriguez, “Effect of the temperature in the mechanical properties of austenite, ferrite and sigma phases of duplex stainless steels using hardness, microhardness and nanoindentation techniques. Metals, vol. 7(6), pp. 219, 2017. DOI: https://doi.org/10.3390/met7060219
ดาวน์โหลด
เผยแพร่แล้ว
วิธีการอ้างอิง
ฉบับ
บท
การอนุญาต
ลิขสิทธิ์ (c) 2019 Journal of Metals, Materials and Minerals
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Authors who publish in this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
