Novel strengthening mechanisms of high-strength Ni-Fe-based superalloys

2022 年度 研究成果報告書

• 研究課題/領域番号: 20K15057
• 研究種目: 若手研究
• 配分区分: 基金
• 審査区分: 小区分26050:材料加工および組織制御関連
• 研究機関: 名古屋大学 (2022); 東北大学 (2020-2021)
• 研究代表者: 孫 飛 名古屋大学, 工学研究科, 特任講師 (00836562)
• 研究期間 (年度): 2020-04-01 – 2023-03-31
• キーワード: Ni-Fe-based superalloy / L12 ordered precipitate / Orowan mechanism / Dislocation

研究成果の概要

High content of Fe addition in Ni-Fe-based superalloys not only decreases the production cost but still has better mechanical properties than some other Ni-based superalloys. Ni-Fe-based superalloys has been optimized according to the well studied novel strengthening mechanisms.

自由記述の分野

Structural material science and engineering

研究成果の学術的意義や社会的意義

This Ni-Fe-based superalloy with low cost, good workabilities, great creep ruptured life has been considered as the promising candidate materials for hot section components in advanced ultra-supercritical power plants to improve electricity-producing efficiency, reduce CO2 emission and fuel cost.