Anisotropic characterization of wire-arc additive manufacturing Ti-5Al-2Sn-2Zr-4Mo-4Cr alloy: Influence of texture and microstructure

IF 6.1 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science and Engineering: A Pub Date : 2025-02-07 DOI:10.1016/j.msea.2025.148020

Banglong Yu , Ping Wang , Yong Liu , Xiaoguo Song , Yazhou Liu , Man Jae SaGong , Renhao Wu , Hyoung Seop Kim

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引用次数: 0

Abstract

The microstructure, monotonic tensile, low cyclic fatigue (LCF) behavior, and failure mechanisms of wire-arc additive manufacturing (WAAM) TC17 alloy were investigated to guide the design of aviation industry components. The results showed that the average elongation of horizontal and vertical samples was 6.4 % and 14.5 %, respectively. The total strain amplitudes of horizontal and vertical samples were 1.207 % and 1.908 %, respectively, at 2N_f = 10³. The α_GB and {0001}<11–20> slip system together provide the cumulative plastic deformation, resulting in lower plasticity of horizontal loading compared to vertical loading. Based on crystallography, a parameter F∗ was proposed to quantify the anisotropy of LCF properties and the strong correlation between crack propagation and the α + β microstructure. By controlling the deposition parameters in WAAM, it is possible to achieve the desired α lamellae orientation (∼45°< θ < ∼90°), ensuring superior fatigue resistance in the vertical loading direction.

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来源期刊

Materials Science and Engineering: A 工程技术-材料科学：综合

CiteScore

11.50

自引率

15.60%

发文量

1811

审稿时长

31 days

期刊介绍： Materials Science and Engineering A provides an international medium for the publication of theoretical and experimental studies related to the load-bearing capacity of materials as influenced by their basic properties, processing history, microstructure and operating environment. Appropriate submissions to Materials Science and Engineering A should include scientific and/or engineering factors which affect the microstructure - strength relationships of materials and report the changes to mechanical behavior.