Microstructure and Mechanical Properties of 14Cr-ODS Steels with Zr Addition
| Autor: | Jingsong Meng, Weijuan Li, Zhaodong Wang, Haijian Xu, Xiaochun Sha |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Technology
Materials processing Materials science ods ferritic steel Chemical technology microstructure Metallurgy Chemicals: Manufacture use etc TP200-248 TP1-1185 02 engineering and technology mechanical properties 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure 020501 mining & metallurgy 0205 materials engineering Mechanics of Materials General Materials Science Physical and Theoretical Chemistry 0210 nano-technology |
| Zdroj: | High Temperature Materials and Processes, Vol 38, Iss 2019, Pp 404-410 (2019) |
| ISSN: | 2191-0324 0334-6455 |
| Popis: | In this study, oxide dispersion strengthened (ODS) ferritic steels with nominal composition of Fe–14Cr–2W–0.35Y2O3 (14Cr non Zr-ODS) and Fe–14Cr–2W–0.3Zr–0.35Y2O3 (14Cr–Zr-ODS) were fabricated by mechanical alloying (MA) and hot isostatic pressing (HIP) technique to explore the impact of Zr addition on the microstructure and mechanical properties of 14Cr-ODS steels. Microstructure characterization revealed that Zr addition led to the formation of finer oxides, which was identified as Y4Zr3O12, with denser dispersion in the matrix. The ultimate tensile strength (UTS) of the non Zr-ODS steel is about 1201 MPa, but UTS of the Zr-ODS steel increases to1372 MPa, indicating the enhancement of mechanical properties by Zr addition. |
| Databáze: | OpenAIRE |
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