Table 5 Final composition of LePera solution
From: Quantitative analysis of retained austenite in Nb added Fe-based alloy
No. | Etchant | Content | Condition |
|---|---|---|---|
1 | Na2S2O5 | 3.0 g | 30 s |
2 | Dry picric acid | 7.0 g | |
3 | Ethanol (96%) | 100 ml | |
4 | Distilled H2O | 100 ml |