Comparison of Ductile-to-Brittle Transition Behavior in Two Similar Ferritic Oxide Dispersion Strengthened Alloys
| Autor: | Carlos Capdevila, Jesús Chao, María Nieves Aranda, José Luis González-Carrasco, Rosalia Rementeria |
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| Přispěvatelé: | Consejo Superior de Investigaciones Científicas (España), Ministerio de Economía y Competitividad (España) |
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Oxide oxide dispersion strengthened ferritic alloy 02 engineering and technology lcsh:Technology 01 natural sciences Article delamination mechanical alloying chemistry.chemical_compound Brittleness 0103 physical sciences Ultimate tensile strength General Materials Science Texture (crystalline) Composite material lcsh:Microscopy lcsh:QC120-168.85 010302 applied physics lcsh:QH201-278.5 lcsh:T Isotropy Metallurgy Delamination 021001 nanoscience & nanotechnology Microstructure chemistry lcsh:TA1-2040 lcsh:Descriptive and experimental mechanics lcsh:Electrical engineering. Electronics. Nuclear engineering ductile-brittle transition behavior lcsh:Engineering (General). Civil engineering (General) 0210 nano-technology Dispersion (chemistry) lcsh:TK1-9971 |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname Materials, Vol 9, Iss 8, p 637 (2016) Materials Materials; Volume 9; Issue 8; Pages: 637 |
| ISSN: | 1996-1944 2013-4746 |
| DOI: | 10.3390/ma9080637 |
| Popis: | The ductile-to-brittle transition (DBT) behavior of two similar Fe-Cr-Al oxide dispersion strengthened (ODS) stainless steels was analyzed following the Cottrell–Petch model. Both alloys were manufactured by mechanical alloying (MA) but by different forming routes. One was manufactured as hot rolled tube, and the other in the form of hot extruded bar. The two hot forming routes considered do not significantly influence the microstructure, but cause differences in the texture and the distribution of oxide particles. These have little influence on tensile properties; however, the DBT temperature and the upper shelf energy (USE) are significantly affected because of delamination orientation with regard to the notch plane. Whereas in hot rolled material the delaminations are parallel to the rolling surface, in the hot extruded material, they are randomly oriented because the material is transversally isotropic. Financial support of the Spanish Ministerio de Economia e Innovación (MINECO) through a Coordinated Project in the Materials Area of Plan Nacional 2013 (MAT2013-47460-C5-1) is gratefully acknowledged. We acknowledge support by the CSIC Open Access Publication Initiative through its Unit of Information Resources for Research (URICI) |
| Databáze: | OpenAIRE |
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