Startseite Effects of solution treatment on mechanical properties and corrosion resistance of 4A duplex stainless steel
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Effects of solution treatment on mechanical properties and corrosion resistance of 4A duplex stainless steel

  • Panpan Lu , Aiqin Wang , Jingpei Xie und Wenyan Wang
Veröffentlicht/Copyright: 29. Januar 2018
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International Journal of Materials Research
Aus der Zeitschrift International Journal of Materials Research Band 109 Heft 2

Abstract

In this study, 4A duplex stainless steels were prepared via remelting in an intermediate frequency furnace and subsequently solution treated at different temperatures. The effects of solution treatment on the mechanical properties and corrosion resistance of 4A duplex stainless steel were investigated. Microstructures were characterized via optical microscopy and scanning electron microscopy. The mechanical properties were evaluated via hardness test, tensile test, and impact test experiments. The point corrosion resistance was studied via chemical immersion and potentiodynamic anodic polarization. The results showed that with increasing solution temperature in the range of 1 223 – 1 423 K, the tensile strength and hardness first decreased and then increased, and minimum values were obtained at 1 323 K. The σ phase precipitated at the boundaries of the α/γ phases in samples solution treated at 1 223 K, decreasing both impact energy and pitting potential of the experimental steels. When experimental steels were solution treated at 1 373 K for 2 h, a suitable volume fraction of α/γ was uniformly distributed throughout the microstructure, and the steels exhibited optimal mechanical properties and pitting corrosion resistance.

Keywords: 4A duplex stainless steel; Solution treatment; Mechanical properties; Corrosion
*Correspondence address, Prof. Dr. Aiqin Wang, School of Material Science and Engineering, Henan University of Science and Technology, Luoyang 471023, Henan Province, P.R. China, Tel.: +86 13938881511, Fax: +86 037964231779, E-mail:

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Received: 2017-06-12
Accepted: 2017-08-10
Published Online: 2018-01-29
Published in Print: 2018-02-12

© 2018, Carl Hanser Verlag, München

Artikel in diesem Heft

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  2. Contents
  3. Original Contributions
  4. Phase-field simulation of the solidified microstructure in a new commercial 6××× aluminum alloy ingot supported by experimental measurements
  5. Hydrogen sorption and corrosion properties of La2Ni9CoSn0.2 alloy
  6. Isothermal sections of the Co–Ni–Ti system at 950 and 1 000 °C
  7. Experimental and theoretical study of temperature-dependent variable stiffness of magnetorheological elastomers
  8. Photocatalytic properties of nano-structured carbon nitride: a comparison with bulk graphitic carbon nitride
  9. Effects of solution treatment on mechanical properties and corrosion resistance of 4A duplex stainless steel
  10. Three-body abrasive wear behaviour of metastable spheroidal carbide cast irons with different chromium contents
  11. Intermetallic precipitation in rare earth-treated A413.1 alloy: A metallographic study
  12. Short Communications
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  15. DGM News
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https://doi.org/10.3139/146.111582
Schlagwörter für diesen Artikel
4A duplex stainless steel; Solution treatment; Mechanical properties; Corrosion

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Original Contributions
  4. Phase-field simulation of the solidified microstructure in a new commercial 6××× aluminum alloy ingot supported by experimental measurements
  5. Hydrogen sorption and corrosion properties of La2Ni9CoSn0.2 alloy
  6. Isothermal sections of the Co–Ni–Ti system at 950 and 1 000 °C
  7. Experimental and theoretical study of temperature-dependent variable stiffness of magnetorheological elastomers
  8. Photocatalytic properties of nano-structured carbon nitride: a comparison with bulk graphitic carbon nitride
  9. Effects of solution treatment on mechanical properties and corrosion resistance of 4A duplex stainless steel
  10. Three-body abrasive wear behaviour of metastable spheroidal carbide cast irons with different chromium contents
  11. Intermetallic precipitation in rare earth-treated A413.1 alloy: A metallographic study
  12. Short Communications
  13. Microstructure and magnetic properties of iron–cobalt-based alloys processed by metal injection moulding
  14. Solid-state synthesis and magnetic properties of rhombohedral phase Mg2SiNi3
  15. DGM News
  16. DGM News
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