FCGRs in NR and TMCP S355 steels in seawater

A similar study described in Section 3 was carried out in SW . The authors assessed the FCG resistance of J2N, G8 and G10 given in Table 2 in SW . The details of the experimental procedures have been discussed in Refs [22][36][67]. The experimental results are shown in Fig. 16. Three corrosion fatigue crack growth rate (CFCGR ) curves, obtained at 12kN, 9kN and under 0.3Hz, for the J2N studied by Adedipe [53] (abbrev. ‘Ade’) were plotted from the data extracted from \(a\) vs. \(N\) curves given in Ref [53]. In the present study, one test on the J2N was performed at 9kN, 0.3Hz, R = 0.1 to validate the results obtained in the Adedipe’s study. Mehmanparast [59] studied CFCG in G8 under similar loading conditions and at three different test locations noted as (A3, A4), (B3, B4) and C3. In identifying the experimental samples, the prefix gives the steel subgrade – J2N, G8, G10, followed by S (S = sinewave), Pmax (maximum load), F (frequency, followed by the frequency value) and the last is the test centre for the Mehmanparast [59] study. All the tests were performed in SW and under sinewave.