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Precipitates-interaction capture of nano-sized iron-rich precipitates during copper solidification
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering. Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China.
Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing, Peoples R China..
Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China..
2019 (English)In: Materials Science and Technology, ISSN 0267-0836, E-ISSN 1743-2847Article in journal (Refereed) Published
Abstract [en]

Nano-sized iron-rich precipitates reinforced copper alloys achieve excellent mechanical properties. Capture mechanism of iron-rich precipitates into copper grains during solidification was described but needs further validation. Here, Cu-1.5Fe-0.5Co (wt-%) alloy is fabricated by gravity casting. Iron-rich precipitates in nano and submicron scale (mostly < 100 nm) are well dispersed in copper grain interior. Traditional pushing/engulfment transition (PET) models are used to interpret the capture process of iron-rich precipitates during copper solidification, but all fail to match the experimental results. The precipitates-interaction capture mechanism is most reasonable for describing the capture process.

Place, publisher, year, edition, pages
Taylor & Francis, 2019.
Keywords [en]
Solidification, microstructure, solid, liquid interface, precipitates-interaction capture
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-251714DOI: 10.1080/02670836.2019.1578918ISI: 000466692800001Scopus ID: 2-s2.0-85064451293OAI: oai:DiVA.org:kth-251714DiVA, id: diva2:1316828
Note

QC 20190521

Available from: 2019-05-21 Created: 2019-05-21 Last updated: 2020-03-09Bibliographically approved

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Chen, Kaixuan

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