Deposition of coatings on the surface of a bulk material is a versatile, economical, and effective strategy to provide additional features to the bulk material, mainly to improve its functionality and extend its service life. Among all the thermal deposition techniques, cold spray (CS) is the only technique in which particles are deposited below their melting point, and therefore, it is a solid-state processing technique. Coatings generated via CS exhibit different characteristics from those of the coatings produced by other methods; this may make CS a competitive technique for the repair and even for the manufacture of self-standing components.

This study presents a basic description of CS and a review of its applications in the deposition of metallic coatings, specifically those based on materials such as Al- and Ti-based alloys, used in aeronautical components. CS is a thermal spray technique that enables the production of coatings with properties and behaviours similar to those of bulk materials with similar compositions.

在散装材料表面沉积涂层是一种通用、经济且有效的策略，可为散装材料提供附加功能，主要是为了提高其功能并延长其使用寿命。在所有热沉积技术中，冷喷涂 (CS) 是唯一一种将颗粒沉积在其熔点以下的技术，因此，它是一种固态加工技术。通过 CS 生成的涂层表现出与其他方法生成的涂层不同的特性；这可能使 CS 成为具有竞争力的维修技术，甚至可以用于制造自立式组件。

本研究对 CS 进行了基本描述，并回顾了其在金属涂层沉积中的应用，特别是那些基于铝和钛基合金等材料的涂层，用于航空部件。CS 是一种热喷涂技术，可以生产具有与具有相似成分的散装材料相似的性质和行为的涂层。