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In-Situ Nanoparticles: A New Strengthening Method for Metallic Structural Material
Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China..
Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China..
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering. Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Beijing 100083, Peoples R China.
Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China..
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2018 (English)In: Applied Sciences, E-ISSN 2076-3417, Vol. 8, no 12, article id 2479Article, review/survey (Refereed) Published
Abstract [en]

Over the past several years, coherent interface strengthening was proposed and has since drawn much attention. Unfortunately, many fabrication techniques are restricted to very small size. Recently, a brand new method of in-situ nanoparticle strengthening was systematically investigated, which was proved to be an efficacious way to optimize microstructure and improve mechanical property by utilizing uniformly dispersed nanoparticles. In this review, we summarized recent related advances in investigated steels and Cu alloys, including details of preparation technique and characterization of in-situ nanoparticles. In-situ nanoparticles formed in the melt possess a coherent/semi-coherent relationship with the matrix, which has a similar effect of coherent interface strengthening. In this case, bulk metallic structural materials with dispersed nanoparticles in the matrix can be fabricated through conventional casting process. The effects of in-situ nanoparticles on grain refinement, inhibiting segregation, optimizing inclusions and strengthening are also deeply discussed, which is beneficial for obtaining comprehensive mechanical response. Consequently, it is expected that in-situ nanoparticle strengthening method will become a potential future direction in industrial mass production.

Place, publisher, year, edition, pages
MDPI , 2018. Vol. 8, no 12, article id 2479
Keywords [en]
casting, strengthening method, in-situ nanoparticles, coherent interface, grain refinement, mechanical properties
National Category
Materials Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-242995DOI: 10.3390/app8122479ISI: 000455145000147Scopus ID: 2-s2.0-85057618212OAI: oai:DiVA.org:kth-242995DiVA, id: diva2:1285755
Note

QC 20190205

Available from: 2019-02-05 Created: 2019-02-05 Last updated: 2019-02-05Bibliographically approved

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Chen, Kaixuan

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