Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/106451
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Mechanical Engineering | en_US |
dc.creator | Zhang, L | en_US |
dc.creator | Huang, Z | en_US |
dc.creator | Jiang, L | en_US |
dc.creator | Luan, J | en_US |
dc.creator | Jiao, Z | en_US |
dc.creator | Liu, CT | en_US |
dc.date.accessioned | 2024-05-09T00:53:37Z | - |
dc.date.available | 2024-05-09T00:53:37Z | - |
dc.identifier.issn | 0921-5093 | en_US |
dc.identifier.uri | http://hdl.handle.net/10397/106451 | - |
dc.language.iso | en | en_US |
dc.publisher | Elsevier BV | en_US |
dc.rights | © 2018 Elsevier B.V. All rights reserved. | en_US |
dc.rights | © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. | en_US |
dc.rights | The following publication Zhang, L., Huang, Z., Jiang, L., Luan, J., Jiao, Z., & Liu, C. T. (2019). Effect of Mo:W ratio on segregation behavior and creep strength of nickel-based single crystal superalloys. Materials Science and Engineering: A, 744, 481-489 is available at https://doi.org/10.1016/j.msea.2018.12.043. | en_US |
dc.subject | Alloy design | en_US |
dc.subject | Creep rupture | en_US |
dc.subject | Microsegregation | en_US |
dc.subject | Mo:W ratio | en_US |
dc.subject | Nickel-based single crystal superalloys | en_US |
dc.subject | γ/γ′ eutectic | en_US |
dc.title | Effect of Mo:W ratio on segregation behavior and creep strength of nickel-based single crystal superalloys | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.spage | 481 | en_US |
dc.identifier.epage | 489 | en_US |
dc.identifier.volume | 744 | en_US |
dc.identifier.doi | 10.1016/j.msea.2018.12.043 | en_US |
dcterms.abstract | In past decades, molybdenum (Mo) has demonstrated the potential to replace tungsten (W) in designing lighter nickel-based single crystal superalloys with enhanced creep resistance. In this research, three groups of nickel-based single crystal superalloys are designed and prepared by tuning the Mo:W ratio. The experimental observations show that the primary and secondary dendrite arm spacings are both independent on Mo:W ratio, but the γ/γ′ eutectic volume fraction decreases as Mo:W ratio increases. The electron probe microanalysis reveals that Re, W and Co segregate to dendrite core regions, while Al, Ti, Cr, Mo and Ta to interdendritic regions. The microsegregation of Ta, W and Re are gradually relieved with increasing Mo:W ratio. Atom probe tomography results further indicate that Cr and Mo are depleted in γ/γ′ eutectics, leading to the enrichment of Cr and Mo at interdendritic regions away from γ/γ′ eutectics. Creep rupture results show that the rupture life at 1040 °C/145 MPa is improved as Mo:W ratio increases. | en_US |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Materials science and engineering. A, Structural materials : properties, microstructure and processing, 28 Jan. 2019, v. 744, p. 481-489 | en_US |
dcterms.isPartOf | Materials science and engineering. A, Structural materials : properties, microstructure and processing | en_US |
dcterms.issued | 2019-01-28 | - |
dc.identifier.scopus | 2-s2.0-85058544217 | - |
dc.identifier.eissn | 1873-4936 | en_US |
dc.description.validate | 202405 bcch | en_US |
dc.description.oa | Accepted Manuscript | en_US |
dc.identifier.FolderNumber | ME-0517 | - |
dc.description.fundingSource | Others | en_US |
dc.description.fundingText | National Key Research and Development Program of China; State Key Laboratory of Powder Metallurgy, Central South University; City University of Hong Kong | en_US |
dc.description.pubStatus | Published | en_US |
dc.identifier.OPUS | 21627489 | - |
dc.description.oaCategory | Green (AAM) | en_US |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
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Jiao_Effect_Mow_Ratio.pdf | Pre-Published version | 1.9 MB | Adobe PDF | View/Open |
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