EXTENDING THE TEMPERATURE-RANGE OF CORROSION TESTS OF HEAT-RESISTANT ALLOYS IN CHLORIDE MELTS

Nickel-, iron-, and chromium-base materials ((sic), X18H10T, and BX-2K ) have been tested for corrosion resistance in sodium chloride, an equ imolar mixture of sodium and potassium chlorides, and the 48.7% MgCI2 + 38.2% KCl + 13.1% NaCl eutectic at 400 to 900 degrees C for 20 h. Th e use of the ternary eutectic instead of NaCl or NaCl + KCl allows the test temperature to be lowered to 410 degrees C, which is the melting point of the eutectic salt; therefore, the temperature range of the t ests can be extended by 250 - 400 degrees C.