Erratum to: Mitigation of Intergranular Stress Corrosion Cracking in Al–Mg by Electrochemical Potential Control

Erratum to: JOM DOI: 10.1007/s11837-017-2362-2

The highlighted values in Table I pertaining to the corrected test in 0.6 M NaCl at −0.8 V _SCE pertain to the data shown in Fig. 2 and are illustrated graphically in Fig. 3. These corrected K _TH and da/dt _II values should be considered by the reader when reading pertinent “Results” and “Discussion” sections, which will further support conclusions drawn in this publication.

Table I Critical electrochemical and fracture mechanical results

Fig. 2

The effect of environment and electrochemical potential on the IG-SCC susceptibility of AA5456-H116, NAMLT 65 mg/cm², showing mitigated IG-SCC rates at applied E increasingly near or more negative than E _pit(α) and E _pit(β) in (a) 0.6 M NaCl, (b) saturated NaCl, (c) 2 M MgCl², and (d) saturated MgCl₂. Duplicate testing is demonstrated in (b, c) for the −0.8 V _SCE tests

Fig. 3

Trends of K _TH increase and da/dt _II decrease with applied E _SCE becoming increasingly cathodic with respect to E _corr(α) and E _corr(β) in (a) 0.6 M NaCl, (b) saturated NaCl, (c) 2 M MgCl₂, and (d) saturated MgCl₂. Lateral arrows indicate the effect of IR drop across the crack front, which affects the potential achieved at the crack tip by bulk environment polarization

A typo in the data analysis shown in Fig. 3 performed on the −0.8 V _SCE test in 0.6 M NaCl was corrected, yielding a slightly different da/dt versus K trend than published originally. The corrected data further support this publication’s conclusions, and fractographic analyses for this test remain valid (Fig. 4a).