A laser-induced in-situ interfacial reaction enables inter-particle metallurgical bonding for cold sprayed Ti6Al4V

Materials Today Communications 2026 Open access

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Authors: B. Li, Qiyuan Pan, Weilin Wang, Lijuan Wu, Jianjun Wang, Jiatao Jiang, Panpan Zhang, Shaowu Liu, Zexin Yu, Jianhua Yao
DOI: 10.1016/j.mtcomm.2026.115540
Cited by: 1
References: 33

Abstract

By using N 2 both as the propellant gas and as a reactant, an in-situ nitriding reaction between Ti6Al4V particles was achieved through the synchronous introduction of laser irradiation into cold spray (CS) process. As the laser power inceased, Ti 2 N and/or TiN phases formed at the boundaries of adjacent particles. These phases interconnected to creat a net-like structure, which facilitated inter-particle metallurgical bonding and significantly reduced the porosity of CS-Ti6Al4V deposits. This study presents a novel one-step method for producing highly densified CS-Ti6Al4V deposit, eliminating the need for expensive helium as a propulsive gas and avoiding any post-deposition heat treatment.

Fields of Study & Subjects

Intermetallics and Advanced Alloy Properties High-Temperature Coating Behaviors Additive Manufacturing Materials and Processes

Publication details

Journal / source
Materials Today Communications
Publisher
Elsevier BV
Volume
54
Pages
115540–115540
Publication date
1 June 2026
Language
EN