Please use this identifier to cite or link to this item:
https://doi.org/10.1016/j.matchar.2019.110024
DC Field | Value | |
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dc.title | Improvement in compressive creep resistance of Al-0.2Zr alloy with L1(2) structured Sc-enriched precipitates | |
dc.contributor.author | Zhang, Jiayi | |
dc.contributor.author | Wang, Bin | |
dc.contributor.author | Wang, Hao | |
dc.contributor.author | Zhang, Chaomin | |
dc.date.accessioned | 2020-06-02T00:06:06Z | |
dc.date.available | 2020-06-02T00:06:06Z | |
dc.date.issued | 2020-01-01 | |
dc.identifier.citation | Zhang, Jiayi, Wang, Bin, Wang, Hao, Zhang, Chaomin (2020-01-01). Improvement in compressive creep resistance of Al-0.2Zr alloy with L1(2) structured Sc-enriched precipitates. MATERIALS CHARACTERIZATION 159. ScholarBank@NUS Repository. https://doi.org/10.1016/j.matchar.2019.110024 | |
dc.identifier.issn | 10445803 | |
dc.identifier.issn | 18734189 | |
dc.identifier.uri | https://scholarbank.nus.edu.sg/handle/10635/168901 | |
dc.description.abstract | © 2019 Elsevier Inc. The influence of Sc microalloying on compressive creep behaviors of Al-0.2Zr and Al-0.2Zr-0.1Sc alloy have been studied. The steady state creep rate of Al-0.2Zr-0.1Sc alloy ranged from 1.124 × 10−9 s−1 to 1.926 × 10−8 s−1 at 90–150 °C /70 MPa. By contrast, the steady state creep rate of Al-0.2Zr alloy ranged from 6.862 × 10−8 s−1 to 8.560 × 10−7 s−1, indicating that Sc addition significantly improve the compressive creep resistance of Al-0.2Zr alloy. According to the TEM micrographs, except for Al3(Zr,Sc) precipitates precipitated during aging, a large number of fine dispersed Al3Sc precipitates precipitated after creep for 70 h, which significantly hinder movements of dislocations and grain boundaries. As a result, the steady-state creep rate of Al-0.2Zr-0.1Sc alloy slightly decreases after 70 h at 150 °C /70 MPa. The critical creep stress value of Al-0.2Zr alloy is 47.2 MPa, and that of Al-0.2Zr-0.1Sc alloy is 68.4 MPa. The higher critical creep stress value indicates the more excellent compressive creep resistance. | |
dc.language.iso | en | |
dc.publisher | ELSEVIER SCIENCE INC | |
dc.source | Elements | |
dc.subject | Science & Technology | |
dc.subject | Technology | |
dc.subject | Materials Science, Multidisciplinary | |
dc.subject | Metallurgy & Metallurgical Engineering | |
dc.subject | Materials Science, Characterization & Testing | |
dc.subject | Materials Science | |
dc.subject | A1-0.2Zr-0.1Sc alloy | |
dc.subject | Compressive creep behaviors | |
dc.subject | Al-3(Zr,Sc) | |
dc.subject | Al3Sc | |
dc.subject | Critical creep stress | |
dc.subject | MECHANICAL-PROPERTIES | |
dc.subject | RECRYSTALLIZATION BEHAVIOR | |
dc.subject | TENSILE PROPERTIES | |
dc.subject | AGING BEHAVIOR | |
dc.subject | AL-ZR | |
dc.subject | MICROSTRUCTURE | |
dc.subject | EVOLUTION | |
dc.subject | STRENGTH | |
dc.subject | TI | |
dc.type | Article | |
dc.date.updated | 2020-06-01T01:45:42Z | |
dc.contributor.department | ELECTRICAL AND COMPUTER ENGINEERING | |
dc.contributor.department | MECHANICAL ENGINEERING | |
dc.description.doi | 10.1016/j.matchar.2019.110024 | |
dc.description.sourcetitle | MATERIALS CHARACTERIZATION | |
dc.description.volume | 159 | |
dc.published.state | Published | |
Appears in Collections: | Staff Publications Elements |
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Improvement in compressive creep behavior of Al-0.2Zr alloy via Sc microalloying.pdf | Accepted version | 1.84 MB | Adobe PDF | OPEN | Post-print | View/Download |
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