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International Journal of Corrosion
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International Journal of Corrosion
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2012
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Article
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Tab 4
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Research Article
Determination of Susceptibility to Intergranular Corrosion of UNS 31803 Type Duplex Stainless Steel by Electrochemical Reactivation Method: A Comparative Study
Table 4
EDS analysis of phases present in solution annealed and aged condition of DSS.
Heat treatment
Phase
Cr
(wt.%)
Ni
(wt.%)
Mo
(wt.%)
Mn
(wt.%)
Si
(wt.%)
S
(wt%)
Fe
(wt%)
Solution annealed
General composition
22.04
4.45
2.69
1.49
0.45
0.003
68.29
Solution annealed at 1050°C/1 hr
26.32
4.87
4.15
1.59
0.74
—
62.32
23.55
7.08
—
1.85
—
1.19
66.33
Aged at 800°C/31622 min
22.03
6.10
2.27
2.05
0.56
—
66.98
19.97
7.20
—
2.22
0.72
—
69.90
20.23
6.29
—
2.41
—
—
71.08
32.15
2.26
6.66
1.80
0.71
—
56.41
21.92
6.16
—
1.95
—
0.80
69.17
Aged at 800°C/316 min
27.71
3.47
—
—
0.55
0.98
67.28
26.97
2.77
—
—
—
0.91
69.36
20.26
4.76
—
2.10
0.61
—
72.28
30.76
3.36
7.88
1.80
0.71
—
55.50