含re高温合金中Mo0.6Re0.4新相的发现与表征

IF 6.3 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Journal of Alloys and Compounds Pub Date : 2025-05-30 DOI:10.1016/j.jallcom.2025.181285

Liwu Jiang, Dongxu Kou, Xintian Wang, Chihang Jiang, Yu Yang, Shusuo Li

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引用次数: 0

摘要

稀土元素由于能显著提高单晶高温合金的力学性能而引起了人们的极大兴趣。然而，其机制尚不清楚。本研究首次报道的Mo0.6Re0.4新相为揭示强化机制提供了重要的见解。该相具有体心立方（bcc）结构，分布在初生γ′相周围。高通量原位表征表明其含量在0.15%以下。由于其浓度低，形态和组成特征与已知TCP相相似，难以区分，容易混淆。

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Discovery and characterization of a new Mo0.6Re0.4 phase in a Re-containing superalloy

Re element has garnered significant interest due to it can significantly enhance mechanical properties of single crystal superalloys. However, the mechanism is still unclear. The first reported Mo_0.6Re_0.4 new phase in this study provides critical insights for revealing the strengthening mechanism. This phase has a body-centered cubic (bcc) structure, distributed around the primary γ′ phase. High-throughput in-situ characterization demonstrated its content below 0.15 %. It's hard to distinguish and may be easily confused since its low concentration and the morphological and compositional characteristics are similar to known TCP phases.

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来源期刊

Journal of Alloys and Compounds 工程技术-材料科学：综合

CiteScore

11.10

自引率

14.50%

发文量

5146

审稿时长

67 days

期刊介绍： The Journal of Alloys and Compounds is intended to serve as an international medium for the publication of work on solid materials comprising compounds as well as alloys. Its great strength lies in the diversity of discipline which it encompasses, drawing together results from materials science, solid-state chemistry and physics.