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Effect of Heat-Treatment on the Elevated Temperature Compression and Compressive Creep Properties of Fe-14Cr Ferritic Oxide Dispersion Strengthened (ODS) Steel
| Content Provider | Semantic Scholar |
|---|---|
| Author | Kim, Young-Kyun Joo, Yeun-Ah Park, Jong-Kwan Kim, Hyeong Joon Kong, Man-Sik Lee, Kangjin “ Caleb” |
| Copyright Year | 2017 |
| Abstract | This study investigated the microstructure and the ambient-elevated temperature compression and elevated temperature creep properties of Fe-14Cr ferritic ODS steel manufactured by mechanical alloying (high energy ball milling) and hot extrusion processes. Initial microstructural observation of the as-extruded material identified elongated grains in the direction of extrusion; however, some recrystallization and grain growth were observed in the heat-treated material. The average grain sizes of the as-extruded material and heat-treated material were 0.4 and 1.1 μm, respectively. In addition, the heat treatment resulted in the increase in number density and the decrease in size of the nanocluster. A room temperature compression tests confirmed the heat-treated materials (1457 MPa) had relatively higher yield than the as-extruded material (1377 MPa), and a general tendency was observed that the difference in yield strength decreased as temperature increased. Furthermore, elevated temperature compressive creep tests confirmed that the heat-treated material had relatively greater creep resistance compared to the as-extruded material at all stress levels. †(Received July 14, 2017; Accepted September 18, 2017) |
| Starting Page | 862 |
| Ending Page | 869 |
| Page Count | 8 |
| File Format | PDF HTM / HTML |
| DOI | 10.3365/KJMM.2017.55.12.862 |
| Volume Number | 55 |
| Alternate Webpage(s) | http://kjmm.org/upload/pdf/KJMM-2017-55-12-862.pdf |
| Alternate Webpage(s) | https://doi.org/10.3365/KJMM.2017.55.12.862 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |