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


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




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


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


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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