在TiCoCrFeMn高合金中的氧化形成
Dominika Przygucka1, Adelajda Polkowska2, Wojciech Polkowski2
1Faculty of Advanced Technologies and Chemistry, Military University of Technology, Sylwestra Kaliskiego 2, 00-908 Warsaw, Poland.
Materials (Basel, Switzerland)
|January 25, 2025
概括
这项研究研究了高合金中的氧化物沉物. 意想不到的是,这两种方法都产生了二氧化和Ti2O3的混合物,而不是预期的鲁相.
科学领域:
- 材料科学 材料科学 材料科学
- 金工业是金工业的一个方面.
- 晶体学 晶体学是指结晶学.
背景情况:
- 高合金 (HEAs) 存在结构识别方面的挑战.
- 预测相位结构对于HEA的功能性质至关重要.
- 用陶颗粒强化高电压是一个关键的研究领域.
研究的目的:
- 为了研究引入二氧化 (TiO2) 沉物进入TiCoCrFeMn高合金的结构结果.
- 为了比较氧化物沉引入的现场和现场方法.
- 分析Ti-O系统中的相位重建.
主要方法:
- 在现场引入解剖酶TiO2和在现场重建CuO到TiO2.
- 在1000°C时均质化.
- 显微观测,X射线衍射 (XRD),能量分散式X射线光谱 (EDS) 和电子反射散射衍射 (EBSD).
主要成果:
- 与 rutile TiO2 形成的预期相反,这两种引入方法都导致了解剖酶 TiO2 和 Magnéli 阶段 Ti2O3.3 的混合物.
- 显微镜和晶体分析证实了这些意想不到的阶段的存在.
- 阶段重建分析利用了吉布斯自由能量的变化.
结论:
- 在所研究的条件下,没有达到 rutile TiO2 的形成.
- 在TiCoCrFeMn合金中,最后的强化阶段是解剖酶TiO2和Ti2O3.3的复合物.
- 了解相稳定性和转换对于设计新型高材料至关重要.
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