Research Article
Stress Corrosion Cracking of Steel and Aluminum in Sodium Hydroxide: Field Failure and Laboratory Test
Table 1
(a) Chemical composition analysis results of steel materials [
12]. (b) Chemical composition analysis results of aluminum alloys.
(a) |
| % wt. | Field failure case study | Ferrite-pearlite tube | Ferrite-pearlite tube | Martensite tube | Austenite tube | Ferrite-pearlite tube | Martensite tube | Austenite tube |
| C | 0.274 | 0.494 | 0.164 | 0.382 | 0.093 | Si | 0.178 | 0.167 | 0.044 | 0.149 | 0.437 | Mn | 0.462 | 0.379 | 0.896 | 0.263 | 0.672 | P | 0.016 | 0.019 | 0.032 | 0.011 | 0.041 | S | 0.022 | 0.030 | 0.021 | 0.028 | 0.028 | Cr | Negligible | negligible | 12.128 | negligible | 13.427 | Fe | Balance | Balance | Balance | Balance | Balance |
|
|
(b) |
| % wt. | Field failure sample | Laboratory sample |
| Si | 0.692 | 0.674 | Fe | 0.223 | 0.280 | Cu | 0.044 | 0.041 | Cr | 0.033 | 0.031 | Ni | 0.009 | 0.007 | Al | Balance | Balance |
|
|