التفاصيل البيبلوغرافية
العنوان: |
New Ferritic Stainless Steel for Service Temperatures up to 1050 °C Utilizing Intermetallic Phase Transformation. |
المؤلفون: |
Juuti, Timo, Manninen, Timo, Uusikallio, Sampo, Kömi, Jukka, Porter, David |
المصدر: |
Metals (2075-4701); Jun2019, Vol. 9 Issue 6, p664-664, 1p |
مصطلحات موضوعية: |
FERRITIC steel, DUAL-phase steel, LAVES phases (Metallurgy), HIGH temperatures, IRON alloys, GRAIN growth, TEMPERATURE |
مستخلص: |
A large number of thermodynamic simulations has been used to design a new Nb-Ti dual stabilized ferritic stainless steel with excellent creep resistance at 1050 °C through an optimal volume fraction of Laves (η) phase stabilized by the alloying elements Nb, Si and Mo. By raising the dissolution temperature of the phase, which also corresponds to the onset of rapid grain growth, the steel will better maintain the mechanical properties at higher service temperature. Laves phase precipitates can also improve creep resistance through precipitation strengthening and grain boundary pinning depending on the dominant creep mechanism. Sag tests at high temperatures for the designed steel showed significantly better results compared to other ferritic stainless steels typically used in high temperature applications at present. [ABSTRACT FROM AUTHOR] |
|
Copyright of Metals (2075-4701) is the property of MDPI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
قاعدة البيانات: |
Complementary Index |