Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/94630
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Industrial and Systems Engineering | en_US |
dc.creator | Haghdadi, N | en_US |
dc.creator | Ledermueller, C | en_US |
dc.creator | Chen, H | en_US |
dc.creator | Chen, Z | en_US |
dc.creator | Liu, Q | en_US |
dc.creator | Li, X | en_US |
dc.creator | Rohrer, G | en_US |
dc.creator | Liao, X | en_US |
dc.creator | Ringer, S | en_US |
dc.creator | Primig, S | en_US |
dc.date.accessioned | 2022-08-25T01:54:14Z | - |
dc.date.available | 2022-08-25T01:54:14Z | - |
dc.identifier.issn | 0921-5093 | en_US |
dc.identifier.uri | http://hdl.handle.net/10397/94630 | - |
dc.language.iso | en | en_US |
dc.publisher | Elsevier | en_US |
dc.rights | © 2022 Elsevier B.V. All rights reserved. | en_US |
dc.rights | © 2022. 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 Haghdadi, N., Ledermueller, C., Chen, H., Chen, Z., Liu, Q., Li, X., Rohrer, G., Liao, X., Ringer, S., & Primig, S. (2022). Evolution of microstructure and mechanical properties in 2205 duplex stainless steels during additive manufacturing and heat treatment. Materials Science and Engineering: A, 835, 142695 is available at https://dx.doi.org/10.1016/j.msea.2022.142695. | en_US |
dc.subject | Additive manufacturing | en_US |
dc.subject | Duplex stainless steel | en_US |
dc.subject | Heat treatment | en_US |
dc.subject | Mechanical properties | en_US |
dc.subject | Microstructure | en_US |
dc.title | Evolution of microstructure and mechanical properties in 2205 duplex stainless steels during additive manufacturing and heat treatment | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.volume | 835 | en_US |
dc.identifier.doi | 10.1016/j.msea.2022.142695 | en_US |
dcterms.abstract | Metal additive manufacturing (AM) offers exceptional design freedom, but its high thermal gradients often generate non-equilibrium microstructures with chemical and interfacial instabilities. Steels that solidify as δ-ferrite often experience a further solid-state phase transformation to austenite during AM. The detailed nature of this phase transformation during AM is yet to be fully understood. Duplex stainless steel, which is known for its unique combination of high corrosion resistance and mechanical properties, is a suitable alloy to further study this phase transformation. The current study aims to gain novel insights into solid-state phase transformations and mechanical properties of duplex stainless steels during laser powder-bed fusion (LPBF). As-printed microstructures exhibit significant deviations when compared to conventionally manufactured counterparts in terms of phase balance and morphology, elemental partitioning, and interface character distribution. During LPBF, only a small fraction of austenite forms, mostly at the ferrite-ferrite grain boundaries, via a phase transformation accompanied by diffusion of interstitials. Austenite/ferrite boundaries are shown to terminate on {100}F//{111}A planes. This is due to the character of parent ferrite-ferrite boundaries which is dictated by the sharp <100> texture and geometry of austenite grains induced by directional solidification and epitaxial growth of ferrite. Benchmarking mechanical properties against a wrought counterpart demonstrates that AM offers high strength but relatively low ductility and impact toughness. A short heat treatment reverts the microstructure back to its equilibrium state resulting in balanced tensile and toughness properties, comparable to or even better than those of wrought counterparts. | en_US |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Materials science and engineering. A, Structural materials : properties, microstructure and processing, 17 Feb. 2022, v. 835, 142695 | en_US |
dcterms.isPartOf | Materials science and engineering. A, Structural materials : properties, microstructure and processing | en_US |
dcterms.issued | 2022-02-17 | - |
dc.identifier.scopus | 2-s2.0-85123206748 | - |
dc.identifier.eissn | 1873-4936 | en_US |
dc.identifier.artn | 142695 | en_US |
dc.description.validate | 202208 bcww | en_US |
dc.description.oa | Accepted Manuscript | en_US |
dc.identifier.FolderNumber | ISE-1284 | - |
dc.description.fundingSource | Self-funded | en_US |
dc.description.pubStatus | Published | en_US |
dc.identifier.OPUS | 60929311 | - |
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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Chen_Evolution_Microstructure_Mechanical.pdf | Pre-Published version | 3.69 MB | Adobe PDF | View/Open |
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