Effects of Hydrogen Contents on Oxidation Behavior of Alloy 690TT and Associated Boron Accumulation within Oxides in High-Temperature Water

Figure 1

SEM micrographs of the oxide layers formed on Alloy 690TT in simulated primary water with different DH contents at 330°C for 500 h: (a) 0.4494 mg/kg, (b) 0.8988 mg/kg, (c) 3.1458 mg/kg, (d) 4.4940 mg/kg, (e) 5.8422 mg/kg, and (f) 8.9880 mg/kg.

(a)

(b)

(c)

(d)

(e)

(f)