Abstract
Several examples of corrosion failures of commonly used austenitic stainless steel weldments are presented and the various causes described. Preliminary results of tests conducted in corrosive aqueous environments aimed at assessing the performance of high alloy stainless steels are also outlined. The alloys used were high molybdenum-containing AISI grade 317L (UNS S31703) and alloy 2205 (UNS S31803) parent plate materials welded with AISI grade 904L (UNS N08904) and alloy 2205 filler metals. Both pitting and intergranular corrosion (IGC) were found to occur in the aggressive environments chosen for the study. In general the AISI grade 317L stainless steel was more susceptible to pitting and IGC than either of the weld metals. The causes of corrosion of high molybdenum alloys in aggressive environments is discussed with reference to segregation and secondary phase precipitation effects.
| Original language | English |
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| Title of host publication | Eighteenth Australasian Chemical Engineering Conference |
| Publisher | Auckland, New Zealand, Univ. of Auckland |
| Pages | 270-277 |
| Number of pages | 8 |
| ISBN (Print) | 0868690961, 9780868690964 |
| Publication status | Published - 1990 |
| Externally published | Yes |
| Event | Eighteenth Australasian Chemical Engineering Conference Part 2 (of 2) - Auckland, NZ Duration: 27 Aug 1990 → 30 Aug 1990 |
Conference
| Conference | Eighteenth Australasian Chemical Engineering Conference Part 2 (of 2) |
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| City | Auckland, NZ |
| Period | 27/08/90 → 30/08/90 |