Corrosion resistance of Hastelloys in molten metal-chloride heat-transfer fluids for concentrating solar power applications

K. Vignarooban, P. Pugazhendhi, C. Tucker, Dominic F Gervasio, A. M. Kannan

Research output: Contribution to journalArticle

62 Citations (Scopus)

Abstract

Corrosion rates have been estimated for commercial Hastelloys C-276, C-22 and N types in eutectic molten salts containing NaCl, KCl and ZnCl2 using steady-state potentiodynamic method (0.2mVs-1 within ~±30mV from the open circuit voltage). Hastelloy C-276 exhibited the lowest corrosion rates of ~10 and 40μm per year in 13.4NaCl-33.7KCl-52.9ZnCl2 (mol%) salt at 250 and 500°C, respectively. The potentiodynamic method was validated by conducting traditional immersion test for corrosion rate estimation on C-276 Hastelloy in 13.4NaCl-33.7KCl-52.9ZnCl2 (mol%) at 500°C (corrosion rate ~50μm per year). Among the samples evaluated, Hastelloy N showed highest corrosion rate of 150μm per year at 500°C.

Original languageEnglish (US)
Pages (from-to)62-69
Number of pages8
JournalSolar Energy
Volume103
DOIs
StatePublished - May 2014

Fingerprint

Corrosion rate
Liquid metals
Solar energy
Corrosion resistance
Chlorides
Heat transfer
Fluids
Salts
Open circuit voltage
Eutectics
Molten materials

Keywords

  • Corrosion rate
  • Halide eutectic molten salts
  • High temperature corrosion
  • Potentiodynamic polarization

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

Cite this

Corrosion resistance of Hastelloys in molten metal-chloride heat-transfer fluids for concentrating solar power applications. / Vignarooban, K.; Pugazhendhi, P.; Tucker, C.; Gervasio, Dominic F; Kannan, A. M.

In: Solar Energy, Vol. 103, 05.2014, p. 62-69.

Research output: Contribution to journalArticle

@article{61ecfdba0c4c452a923658ac21e7f850,
title = "Corrosion resistance of Hastelloys in molten metal-chloride heat-transfer fluids for concentrating solar power applications",
abstract = "Corrosion rates have been estimated for commercial Hastelloys C-276, C-22 and N types in eutectic molten salts containing NaCl, KCl and ZnCl2 using steady-state potentiodynamic method (0.2mVs-1 within ~±30mV from the open circuit voltage). Hastelloy C-276 exhibited the lowest corrosion rates of ~10 and 40μm per year in 13.4NaCl-33.7KCl-52.9ZnCl2 (mol{\%}) salt at 250 and 500°C, respectively. The potentiodynamic method was validated by conducting traditional immersion test for corrosion rate estimation on C-276 Hastelloy in 13.4NaCl-33.7KCl-52.9ZnCl2 (mol{\%}) at 500°C (corrosion rate ~50μm per year). Among the samples evaluated, Hastelloy N showed highest corrosion rate of 150μm per year at 500°C.",
keywords = "Corrosion rate, Halide eutectic molten salts, High temperature corrosion, Potentiodynamic polarization",
author = "K. Vignarooban and P. Pugazhendhi and C. Tucker and Gervasio, {Dominic F} and Kannan, {A. M.}",
year = "2014",
month = "5",
doi = "10.1016/j.solener.2014.02.002",
language = "English (US)",
volume = "103",
pages = "62--69",
journal = "Solar Energy",
issn = "0038-092X",
publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Corrosion resistance of Hastelloys in molten metal-chloride heat-transfer fluids for concentrating solar power applications

AU - Vignarooban, K.

AU - Pugazhendhi, P.

AU - Tucker, C.

AU - Gervasio, Dominic F

AU - Kannan, A. M.

PY - 2014/5

Y1 - 2014/5

N2 - Corrosion rates have been estimated for commercial Hastelloys C-276, C-22 and N types in eutectic molten salts containing NaCl, KCl and ZnCl2 using steady-state potentiodynamic method (0.2mVs-1 within ~±30mV from the open circuit voltage). Hastelloy C-276 exhibited the lowest corrosion rates of ~10 and 40μm per year in 13.4NaCl-33.7KCl-52.9ZnCl2 (mol%) salt at 250 and 500°C, respectively. The potentiodynamic method was validated by conducting traditional immersion test for corrosion rate estimation on C-276 Hastelloy in 13.4NaCl-33.7KCl-52.9ZnCl2 (mol%) at 500°C (corrosion rate ~50μm per year). Among the samples evaluated, Hastelloy N showed highest corrosion rate of 150μm per year at 500°C.

AB - Corrosion rates have been estimated for commercial Hastelloys C-276, C-22 and N types in eutectic molten salts containing NaCl, KCl and ZnCl2 using steady-state potentiodynamic method (0.2mVs-1 within ~±30mV from the open circuit voltage). Hastelloy C-276 exhibited the lowest corrosion rates of ~10 and 40μm per year in 13.4NaCl-33.7KCl-52.9ZnCl2 (mol%) salt at 250 and 500°C, respectively. The potentiodynamic method was validated by conducting traditional immersion test for corrosion rate estimation on C-276 Hastelloy in 13.4NaCl-33.7KCl-52.9ZnCl2 (mol%) at 500°C (corrosion rate ~50μm per year). Among the samples evaluated, Hastelloy N showed highest corrosion rate of 150μm per year at 500°C.

KW - Corrosion rate

KW - Halide eutectic molten salts

KW - High temperature corrosion

KW - Potentiodynamic polarization

UR - http://www.scopus.com/inward/record.url?scp=84896830301&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84896830301&partnerID=8YFLogxK

U2 - 10.1016/j.solener.2014.02.002

DO - 10.1016/j.solener.2014.02.002

M3 - Article

AN - SCOPUS:84896830301

VL - 103

SP - 62

EP - 69

JO - Solar Energy

JF - Solar Energy

SN - 0038-092X

ER -