The corrosion resistance of 12Kh18N10T steel in molten fluoride salts

Materials corrosion in molten LiF–NaF–KF salt

“…After the capsules reached room temperature, the corrosion test capsules were cut open using an automated CNC mill. The retrieved samples, were cleaned of residual FLiNaK using 1 M Al(NO 3 ) 3 according to the method used by Kirillov and Fedulov [16]. Following this the samples were evaluated using weight change measurements and scanning electron microscopy.…”

Corrosion behavior of ZrC–SiC composite ceramics in LiF–NaF–KF molten salt at high temperatures

“…The retrieved samples were cleaned of the residual FLiNaK by using 1 M Al(NO 3 ) 3 according to the method used by Kirillov and Fedulov [15]. After cleaning, the test coupons were baked in a vacuum oven for 24 h. The dimensions and weight of each coupon were measured and recorded.…”

“…FLiNaK salts are used in MSRs because of their high thermal conductivities, high specific heats, low viscosities, and high boiling points. However, FLiNaK molten salts can be corrosive to materials at high temperatures; corrosion resistance under high-temperature environments is compromised by the thermodynamic instability of the protective oxide layer [14][15][16]. Ceramics exhibit excellent properties, such as high melting point, hardness, strength, and chemical stability.…”

Molten Salt Heat Transport Loop: Materials Corrosion and Heat Transfer Phenomena

“…A technique used by Russian researchers to clean FLiBe salt showed the desired result. This technique involves washing the samples in a 1M solution of aluminum nitrate, Al(NO 3 ) 3 , which is a good solvent for lithium fluoride, followed by washing in distilled water and alcohol [13]. Specifically, the samples were cleaned in 1 M Al(NO 3 ) 3 in two separate steps five minutes each, followed by ultrasonic cleaning in distilled water for five minutes, and finally for five minutes ultrasonically in acetone ( Figure 12 …”