Prediction modeling of Type-I hot corrosion performance of Ti–Al–Mo-X (X=Cr, Mn) alloys in (Na, K)2SO4 molten salt mixture environment at 900°C

Garip, Y.; Garip, Zeynep; Özdemir, Ö.

doi:10.1016/j.jallcom.2020.156010

Cited by 33 publications

(7 citation statements)

References 39 publications

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“…And it is observed that all the compounds show a negative sign of the Gibbs free energy values. 19,20…”

Section: Discussionmentioning

confidence: 99%

“…687 °C) which are liquid phases at 700 °C and could dissolve the protective oxides of Cr 2 O 3 thus leading to aggressive attack in the weld metal. 20,21,22…”

Section: Discussionmentioning

confidence: 99%

“…And it is observed that all the compounds show a negative sign of the Gibbs free energy values. 19,20 It is observed that the weld zone has inferior resistance than the base metal and the weldment. The main reason for the weld metal to show poor resistance could be attributed to two phenomena.…”

Section: Naclmentioning

confidence: 99%

“…687 °C) which are liquid phases at 700 °C and could dissolve the protective oxides of Cr 2 O 3 thus leading to aggressive attack in the weld metal. 20,21,22 MoO 3 + Na 2 SO 4 Na 2 MoO 4 + SO 3 (13) The second phenomenon could be the galvanic coupling; we would like to convey that from the schematic drawing shown in Figure 1c. The samples for the weld zone were drawn longitudinally to the direction of the weld and the weldment samples were taken in transverse direction consisting of the weld-HAZ-base.…”

Section: Naclmentioning

confidence: 99%

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Hot corrosion performance of bare and pulsed current welded Fe-based A-286 alloy in chlorine and sulphur environment

Dinek

Mohan

Jithesh

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part E:

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This present research work focuses on the hot corrosion performance of the base metal, weldment, and weld metal of A-286 alloy in sodium sulphate (Na2SO4)–5% sodium chloride (NaCl)–7.5% sodium metavanadate (NaVO3) (3SM) atmosphere at 700 °C. A pulsed current gas tungsten arc welding process is employed to make a similar joining of A-286 alloy using the filler material ERNiCrMo-3. The corrosion kinetics of the specimens has been determined using the thermo-gravimetric technique. The phase compositions of the reaction products are studied by X-ray diffraction, and the surface morphology of the scales is explored by scanning electron microscope analysis. The corroded samples are subjected to a cross-sectional study to ensure the corrosion attack and scales thickness using a SEM with elemental mapping technique. The result indicates that weldment showed better corrosion resistance than bare metal. A thick oxide scale could be found in the bare metal specimen than the weld metal. In the case of base metal, the formation of non-adherent and porous iron (III) oxide (Fe2O3) leads to rapid corrosion. The weight gain of weldment is about 1.96 and 1.13 times less than bare alloy and weld metal.

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“…And it is observed that all the compounds show a negative sign of the Gibbs free energy values. 19,20…”

Section: Discussionmentioning

confidence: 99%

“…687 °C) which are liquid phases at 700 °C and could dissolve the protective oxides of Cr 2 O 3 thus leading to aggressive attack in the weld metal. 20,21,22…”

Section: Discussionmentioning

confidence: 99%

Section: Naclmentioning

confidence: 99%

Section: Naclmentioning

confidence: 99%

See 2 more Smart Citations

Hot corrosion performance of bare and pulsed current welded Fe-based A-286 alloy in chlorine and sulphur environment

Dinek

Mohan

Jithesh

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part E:

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show abstract

“…Molten salts are used in various industries due to their high electrical conductivity, high-density processing, and fluid properties. Recently, they have been attracting increasing attention for applications in jet engines [1][2][3][4][5], fuel cells [6][7][8], energy storage [9][10][11], and metal purifications [12][13][14]. However, molten salts corrode container materials and various components of electrolysis equipment.…”

Section: Introductionmentioning

confidence: 99%

High-Temperature Corrosion Behavior of Al-Coated Ni-Base Alloys in Lithium Molten Salt for Electroreduction

et al. 2021

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The electrolytic reduction of a spent oxide fuel involves the liberation of oxygen in a molten salt LiCl–Li2O electrolyte, which creates a corrosive environment for typical structural materials. In this study, the corrosion behaviors of Al–Y-coated specimens in a Li molten salt kept under an oxidizing atmosphere at 650 °C for 72 and 168 h were investigated. The weight loss fraction of the coated specimen to bare specimen was approximately 60% for 3% Li2O and 54% for 8% Li2O at 72 h, and approximately 38% for 3% Li2O and 30% for 8% Li2O at 168 h. Corrosion was induced in the LiCl–Li2O molten salt by the basic oxide ion O2− via the basic flux mechanism, and the corrosion product was found to be dependent on the activity of the O2− ion. The increase in weight loss may have been caused by the increase in the O2− concentration due to the increase in the Li2O concentration rather than being because of the increased reaction time. The Al–Y coating was found to be beneficial for hot corrosion resistance, which can be useful for handling high-temperature lithium molten salt under an oxidizing atmosphere.

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Effect of SiC Content on Hot Corrosion Resistance of TiC and Ti5Si3 Reinforced Ti-Al-Sn-Zr Titanium Matrix Composites

Wang

Liu

et al. 2021

J. of Materi Eng and Perform

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Prediction modeling of Type-I hot corrosion performance of Ti–Al–Mo-X (X=Cr, Mn) alloys in (Na, K)2SO4 molten salt mixture environment at 900°C

Cited by 33 publications

References 39 publications

Hot corrosion performance of bare and pulsed current welded Fe-based A-286 alloy in chlorine and sulphur environment

Hot corrosion performance of bare and pulsed current welded Fe-based A-286 alloy in chlorine and sulphur environment

High-Temperature Corrosion Behavior of Al-Coated Ni-Base Alloys in Lithium Molten Salt for Electroreduction

Effect of SiC Content on Hot Corrosion Resistance of TiC and Ti5Si3 Reinforced Ti-Al-Sn-Zr Titanium Matrix Composites

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