Details

Autor(en) / Beteiligte

• Wen, Pengyu
• Chen, Zhengzong
• Liu, Zhengdong
• Luo, Haiwen
• Li, Bowen
• Zhang, Mingming
• Brown, Andrew D.
• Monteiro, Sergio Neves
• Kalay, Yunus Eren
• Hwang, Jiann-Yang
• Escobedo-Diaz, Juan P.
• Carpenter, John S.
• Li, Jian
• Ikhmayies, Shadia

Titel

The Evolution of Precipitates in a Novel Heat-Resistant Martensitic Steel During Creep

Ist Teil von

• Characterization of Minerals, Metals, and Materials 2020, p.303-309

Ort / Verlag

Cham: Springer International Publishing

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• In the past decadesPrecipitate, several 9–12 wt% Cr-containing martensitic steelsSteel have been researched for the application in ultra-supercritical power plants at 650 °C, which is still a worldwide challenge. Among them, G115 martensitic steelSteel, which was developed in China, is one of promising candidates. It has the basic composition of 9% Cr-3% W-3% Co and contains 1% Cu (all in wt%) and the optimized contents of B and N, leading to much better creepCreep strength and creepCreep ductility than P92 steelSteel. Both M23C6carbidesCarbide and ε-Cu particles were found during the tempering of G115 steelSteel, and the former have finer size than those in P92 steelSteel, which results in Laves phase to form with the refined size too during the latter creepCreep stage. All these formed precipitatesPrecipitate shall contribute to improved creepCreep rupture strength of G115 steelSteel.