Research progress on Ti2AlNb-based alloys and composites for aerospace applications

被引：1

作者：

Hu, Rui ^{[1
,2
]}

Zhang, Kewei ^{[1
]}

Zou, Hang ^{[1
]}

Gao, Zitong ^{[1
]}

Luo, Xian ^{[1
]}

Liu, Xinxin ^{[1
]}

Wu, Zeyang ^{[1
]}

机构：

[1] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China

[2] Northwestern Polytech Univ, Shaanxi Prov Key Lab High performance Precis Formi, Xian 710072, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2025年 / 1021卷

基金：

中国国家自然科学基金;

关键词：

Ti2AlNb-based alloys; Ti2AlNb matrix composites; Alloying elements; Reinforcements; Microstructure; Properties; TEMPERATURE TENSILE PROPERTIES; B2; GRAIN-GROWTH; AL-NB SYSTEM; MECHANICAL-PROPERTIES; TI-22AL-25NB ALLOY; MICROSTRUCTURAL EVOLUTION; PHASE-TRANSFORMATION; OXIDATION BEHAVIOR; MATRIX COMPOSITES; CREEP-BEHAVIOR;

D O I：

10.1016/j.jallcom.2025.179701

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Ti2AlNb-based alloys have attracted extensive interest for aerospace applications as they exhibit high specific strength, reasonable room-temperature ductility, acceptable fracture toughness, and excellent creep resistance. However, insufficient high-temperature strength and poor oxidation resistance narrow the service temperature range, as well as forming/reheat cracks during the fabrication process impede their engineering applications. The current paper reviews the design of Ti2AlNb-based alloys, including Al/Nb ratios, single/multiple elements, and the contribution of first-principles calculations. At the same time, Ti2AlNb matrix composites are discussed that reinforced by ceramic particles, ceramic fibers/whiskers, carbon nanomaterials, and so on, which improve the properties accordingly. This review highlights the effects and contributions of alloying elements and reinforcements on the phase transformation, microstructural evolution, and properties of Ti2AlNb-based alloys, with the aim of better understanding the relationships of composition-microstructure-property. The insights gained from this overview can pave the way to design and develop lightweight Ti2AlNb-based alloys for aerospace applications.

引用

页数：24

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