Determination of Susceptibility to Intergranular Corrosion of UNS 31803 Type Duplex Stainless Steel by Electrochemical Reactivation Method

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. %)
Solutionannealed	General composition	22.04	4.45	2.69	1.49	0.45	0.003	68.29
Solution annealed	𝛼	26.32	4.87	4.15	1.59	0.74	—	62.32
	𝛾	23.55	7.08	—	1.85	—	1.19	66.33
725°C/31622 min	𝛾	23.81	6.43	—	—	—	—	69.76
	𝜎	35.21	—	7.21	—	—	—	57.58
	𝛾2	23.03	6.91	—	—	1.04	1.26	67.75
	𝛾2	18.65	5.21					76.14