湿度和K492M合金和Al2O3外之间的界面反应
Guangyao Chen1,2, Houjin Liao1, Shaowen Deng1
1State Key Laboratory of Advanced Special Steel & Shanghai Key Laboratory of Advanced Ferrometallurgy & School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China.
Materials (Basel, Switzerland)
|September 28, 2024
概括
这项研究检查了K492M合金与1430°C的Al2O3外的相互作用. 接触时间的增加改善了合金的湿透性和外透透性,并观察到物理溶解.
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.
- 表面科学是一门学科.
背景情况:
- 了解合金外相互作用对于高温应用至关重要.
- K492M合金和Al2O3 () 是先进制造中的相关材料.
研究的目的:
- 为了研究K492M合金和Al2O3外之间的湿透性和界面相互作用.
- 为了确定接触时间对高温相互作用的影响.
主要方法:
- 在1430°C高温实验2-5分钟.
- 使用光学显微镜 (OM) 和扫描电子显微镜 (SEM) 的微结构分析.
- 在Al2O3外上测量湿角.
主要成果:
- 观察到一种沙子粘附现象,Al2O3颗粒附着在合金上.
- 湿角从125.2°降至95.0°,接触时间 (2-5分钟) 增加.
- 发生了Al2O3外在K492M合金融化中的物理溶解,没有显著的化学产品形成.
结论:
- 在Al2O3外上K492M合金的浸湿性是时间依赖的.
- 延长的接触时间增强了合金的透性和界面相互作用.
- 相互作用主要是物理溶解,而不是化学反应.
相关概念视频
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Table 1: Properties of the alkali metals
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Complexation reactions take place when dative or coordinate covalent bonds form between metal ions and ligands. The compounds formed in these reactions are called coordination compounds. The number of bonds formed between the metal ion and the ligands is called its coordination number. Generally, most metal ions in an aqueous solution are solvated by water molecules and thus exist as aqua complexes.
The equilibrium constant of the complexation reaction is represented as the formation constant...
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