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基于无限固体溶液和伪三级方法设计的三相欧特克高合金的新策略
Xicong Ye1,2, Zhongheng Diao2, Huijun Kang3
1Hubei Engineering Research Center for Graphite Additive Manufacturing Technology and Equipment, China Three Gorges University, Yichang 443002, People's Republic of China.
Nano letters
|May 8, 2024
概括
本研究介绍了设计三相高合金 (TEHEA) 的新策略,揭示了它们复杂的相位结构,并使高性能材料的开发成为可能.
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.
- 合金设计设计 合金设计
背景情况:
- 优德性高合金 (EHEAs) 结合了高和优德性合金的特性,提供了出色的造性和高温潜力.
- 设计多元素/三相高合金 (TEHEAs) 面临着重大挑战.
研究的目的:
- 为了解和设计TEHEAs提出一种新的战略.
- 为了识别设计的TEHEAs中的相位结构.
- 为了评估一个特定的TEHEA成分的机械性能.
主要方法:
- 基于无限固体解决方案模型的设计策略的开发.
- 在合金设计中使用伪三元模型.
- 在多元元素 TEHEAs 中相结构 (FCC,B2,Laves) 的表征.
主要成果:
- 成功提出了TEHEA的新设计策略.
- 设计了超过七个元素的TEHEA,展示了面部中心立方体 (FCC),有序的身体中心立方体 (B2) 和拉维斯相结构.
- 合金C表现出卓越的全面机械性能.
结论:
- 拟议的战略为解开TEHEA设计的复杂性提供了一条途径.
- 已识别的相位结构对于理解TEHEA行为至关重要.
- 合金C是一种有希望的高性能EHEA,为材料开发开辟了新的途径.
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