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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 2
/
Research Article
Determination of Susceptibility to Intergranular Corrosion of UNS 31803 Type Duplex Stainless Steel by Electrochemical Reactivation Method: A Comparative Study
Table 2
The phase volume percentages obtained from digital image analysis.
Heat treatment
Ageing time
(min)
Ferrite phase
(vol. %)
Austenite phase (
γ
+
γ
2
)
(vol. %)
Sigma phase
(vol. %)
Solution annealed at 1050°C, 1 hr
54.55
45.45
0
Solution annealed at 1050°C, 1 h +
aged at 800°C
100
49
46.4
4.6
316
26.7
51.3
22
1000
1.8
54.5
43.7
3162
0.7
55
44.3
10000
0
55
45
31622
0
55
45