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Environmentally assisted fatigue crack nucleation in Ti-6Al-2Sn-4Zr-6Mo
| File | Description | Size | Format | |
|---|---|---|---|---|
 TPC-CorSci-1col-R4.pdf | Accepted version | 3.27 MB | Adobe PDF | View/Open |
| Title: | Environmentally assisted fatigue crack nucleation in Ti-6Al-2Sn-4Zr-6Mo |
| Authors: | Chapman, TP Chater, RJ Saunders, EA Walker, AM Lindley, TC Dye, D |
| Item Type: | Journal Article |
| Abstract: | An unexplained feature was observed at the fatigue crack origin of a number of alpha/beta titanium specimens tested at 450 °C in the low cycle fatigue regime. The origin was discoloured blue but this was not a result of temper colouration; this feature sometimes resulted in large reductions in fatigue lives. A number of specimens were examined to determine the cause and formation mechanism of these “blue spots.” This feature was associated with elevated oxygen and chloride levels and the presence of sodium. A mechanism based on hot-salt stress-corrosion cracking is proposed and the implications for service components are discussed. |
| Issue Date: | 1-Jul-2015 |
| Date of Acceptance: | 31-Mar-2015 |
| URI: | http://hdl.handle.net/10044/1/24622 |
| DOI: | 10.1016/j.corsci.2015.03.013 |
| ISSN: | 0010-938X |
| Publisher: | Elsevier |
| Start Page: | 87 |
| End Page: | 101 |
| Journal / Book Title: | Corrosion Science |
| Volume: | 96 |
| Issue: | 1 |
| Copyright Statement: | © 2015, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| Sponsor/Funder: | Rolls-Royce Plc Rolls-Royce Plc Engineering & Physical Science Research Council (EPSRC) Engineering & Physical Science Research Council (EPSRC) |
| Funder's Grant Number: | 5002680312 4600147967 EP/K034332/1 EP/H004882/1 |
| Keywords: | Science & Technology Technology Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Materials Science Titanium STEM SIMS Hot corrosion Stress corrosion Oxidation STRESS-CORROSION CRACKING BETA-TITANIUM-ALLOYS SUSTAINED-LOAD CRACKING HOT-SALT HYDROGEN EMBRITTLEMENT GASEOUS-HYDROGEN ALPHA-TITANIUM GROWTH MODEL Science & Technology Technology Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Materials Science Titanium STEM SIMS Hot corrosion Stress corrosion Oxidation STRESS-CORROSION CRACKING BETA-TITANIUM-ALLOYS SUSTAINED-LOAD CRACKING HOT-SALT HYDROGEN EMBRITTLEMENT GASEOUS-HYDROGEN ALPHA-TITANIUM GROWTH MODEL 0905 Civil Engineering 0912 Materials Engineering 0913 Mechanical Engineering Energy |
| Publication Status: | Published |
| Online Publication Date: | 2015-04-09 |
| Appears in Collections: | Materials Faculty of Natural Sciences Faculty of Engineering |
This item is licensed under a Creative Commons License
