Bibliographic Citation
| Document |  0 K |
|---|---|
| Title | Influence of Chromium and Molybdenum on the Corrosion of Nickel Based Alloys |
| Creator/Author | Hayes, J R ; Gray, J ; Szmodis, A W ; Orme, C A |
| Publication Date | 2005 Aug 02 |
| OSTI Identifier | OSTI ID: 884785 |
| Report Number(s) | UCRL-JRNL-214554 |
| DOE Contract Number | W-7405-ENG-48 |
| Other Number(s) | Journal ID: ISSN 0013-4651; JESOAN; TRN: US200616%%116 |
| Resource Type | Journal Article |
| Resource Relation | Journal Name: Journal of the Electrochemical Society; Journal Volume: 153; Journal Issue: 5 |
| Research Org | Lawrence Livermore National Laboratory (LLNL), Livermore, CA |
| Sponsoring Org | USDOE |
| Subject | 36 MATERIALS SCIENCE; 12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ALLOYS; BREAKDOWN; CHROMIUM; CORROSION; CORROSION RESISTANCE; MOLYBDENUM; NICKEL; NICKEL ALLOYS; PASSIVATION; PASSIVITY |
| Description/Abstract | The addition of chromium and molybdenum to nickel creates alloys with exceptional corrosion resistance in a diverse range of environments. This study examines the complementary roles of Cr and Mo in Ni alloy passivation. Four nickel alloys with varying amounts of chromium and molybdenum were studied in 1 molar salt solutions over a broad pH range. The passive corrosion and breakdown behavior of the alloys suggests that chromium is the primary element influencing general corrosion resistance. The breakdown potential was nearly independent of molybdenum content, while the repassivation potential is strongly dependant on the molybdenum content. This indicates that chromium plays a strong role in maintaining the passivity of the alloy, while molybdenum acts to stabilize the passive film after a localized breakdown event. |
| Country of Publication | United States |
| Language | English |
| Format | Medium: ED; Size: PDF-file: 29 pages; size: 0 Kbytes |
| System Entry Date | 2009 Dec 16 |
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