Effect of Embrittlement on the Microstructure, Mechanical and Wear Properties of Aged Super Duplex Stainless Steel

Authors

  • Mahesh Davanageri SCEM, Mangaluru – 575007, India
  • D. Disha SCEM, Mangaluru – 575007, India
  • K. Raju SJEC, Mangaluru – 575028, India

DOI:

https://doi.org/10.15377/2410-4701.2020.07.6

Keywords:

Embrittlement, Microstructure, Hardness, Tensile strength, Heat treatment, Wear.

Abstract

In the present study, the effect of embrittlement on the microstructural features, mechanical and dry sliding wear properties of AISI 2507 super duplex stainless steel (SDSS) has been discussed. Prior to heat treatment the SDSS has been solution treated. Further, SDSS has been heat treated at 475°C for 60 min and then quenched in water and oil at room temperature. The heat treatment has led to the embrittlement in SDSS owing to the decomposition of ferrite phase by spinodal decomposition into two phases, Cr-rich (α΄) phase and Fe-rich (α) phase. Embrittlement of super duplex stainless steel resulted in significant improvement in ultimate tensile strength and hardness. However, a decrease in the impact energy has been observed. Oil quenched super duplex steel has better wear resistance compared to water quenched and solution treated steels.

Author Biographies

Mahesh Davanageri, SCEM, Mangaluru – 575007, India

Department of Mechanical Engineering

D. Disha, SCEM, Mangaluru – 575007, India

Department of Mechanical Engineering

K. Raju, SJEC, Mangaluru – 575028, India

Department of Mechanical Engineering

References

Olsson J and Snis M, Duplex - a new generation of stainless steels for desalination plants, Desalination 2007; 205(1-3): 104. https://doi.org/10.1016/j.desal.2006.02.051

Lasebikan BA, Akisanya AR and Deans WF, The mechanical behaviour of a 25Cr Super duplex stainless steel at elevated temperature, Journal of Materials Engineering and Performance 2013; 22(2): 598. https://doi.org/10.1007/s11665-012-0273-5

Vogt JB, Massol K and Foct J, Role of microstructure on fatigue properties of 475°C aged duplex stainless steels, International Journal of Fatigue 2002; 24: 627. https://doi.org/10.1016/S0142-1123(01)00187-6

Fargas G, Mestra A, Mateo A, Effect of sigma phase on wear behavior of a super duplex stainless steel, Wear 2013; 303(1-2): 584. https://doi.org/10.1016/j.wear.2013.04.010

Weng KL and Chen HR, The low temperature aging embrittlement in a 2205 duplex stainless steel, Material Science and Engineering 2004; 379: 119. https://doi.org/10.1016/j.msea.2003.12.051

Sahu JK, Krupp U, Ghosh RN, Christ HJ, Effect of 475°C embrittlement on the mechanical properties of duplex stainless steel, Materials Science and Engineering 2009; 508: 168. https://doi.org/10.1016/j.msea.2009.01.039

Hanninen H, Romu J, Ilola R, Tervo J, Laitinen A, Effects of processing manufacturing of high nitrogen-containing stainless steels on their mechanical, corrosion and wear properties, Journal of Material Processing and Technology 2001; 117: 424. https://doi.org/10.1016/S0924-0136(01)00804-4

Martins M, and Castelleti LC, Effect of heat treatment on mechanical properties of ASTM A890 Gr6A super duplex stainless steel, Journal of ASTM International 2005; 2: 1. https://doi.org/10.1520/JAI13037

Hwang TH, Kim JH, Kim KH, Moon WJ, Kang CY, Effect of R-phase on impact toughness of 25Cr-7Ni-4Mo super duplex stainless steel, Metals and Materials International 2014; 20: 13. https://doi.org/10.1007/s12540-014-1004-2

Davanageri M, Narendranath S and Kadoli R, Influence of ageing time on hardness, microstructure and wear behaviour of AISI2507 super duplex stainless steel, Materials Research Express 2017; 4(8): 086506. https://doi.org/10.1088/2053-1591/aa80a1

Davanageri M, Narendranath S and Kadoli R, Dry sliding wear behavior of super duplex stainless steel AISI 2507: A statistical approach, Archives of Foundry Engineering 2016; 16(4): 47. https://doi.org/10.1515/afe-2016-0082

Villanueva DME, Junior FCP, Ronald L and Padilha AF, Comparative study on sigma phase precipitation of three types of stainless steels: austenitic, super ferritic and duplex, Materials Science Technology 2006; 22: 1098. https://doi.org/10.1179/174328406X109230

Masayuki A, Toshifumi K and Yoshihiko U, Microstructural changes of chromium ferritic stainless steel subjected to cyclic loading in 475 ºC Embrittlement region, Procedia Engineering 2011; 10: 100. https://doi.org/10.1016/j.proeng.2011.04.019

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Published

2020-03-27

How to Cite

Mahesh Davanageri, D. Disha, & K. Raju. (2020). Effect of Embrittlement on the Microstructure, Mechanical and Wear Properties of Aged Super Duplex Stainless Steel. Journal of Material Science and Technology Research, 7,  56–61. https://doi.org/10.15377/2410-4701.2020.07.6

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