Influence of Spray Angle on Scratch Resistance of Cold-Sprayed SS316L Deposits

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47718684%3A_____%2F25%3A10002255" target="_blank" >RIV/47718684:_____/25:10002255 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.3390/ma18020431" target="_blank" >https://doi.org/10.3390/ma18020431</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ma18020431" target="_blank" >10.3390/ma18020431</a>

Result language

angličtina

Original language name

Influence of Spray Angle on Scratch Resistance of Cold-Sprayed SS316L Deposits

Original language description

In this study, we investigated the effect of spray angle on the microstructure, bonding quality, and scratch resistance of cold-sprayed SS316L coatings on SS304 substrates. The coatings were deposited at spray angles of 45°, 60°, 75°, and 90° using a high-pressure cold spray system. A comprehensive analysis of the relationship between the spray angle and coating properties was conducted, with a particular focus on fracture toughness and porosity. Scratch testing, combined with real-time acoustic emission monitoring, enabled the precise identification of failure mechanisms and the assessment of coating integrity. The results indicate that microhardness and porosity are significantly influenced by the spray angle. The highest microhardness was achieved at a 45° angle, while a 90° angle resulted in the lowest porosity and superior bonding due to superior normal impact velocity. Fracture toughness was found to correlate with microstructural cohesion and particle deformation. Optimizing the incidence angle improved the coating performance by balancing strain hardening and ductility, thereby reducing the risk of premature failure. These findings are particularly relevant for industrial applications, where wear resistance and high-quality bonding are critical, such as in aerospace, automotive, and marine sectors. By adjusting the spray angles, manufacturers can enhance the longevity and reliability of the coated components, thus reducing maintenance costs and improving performance. This research highlights the importance of process parameters in achieving durable, high-quality coatings and emphasizes scratch testing as an effective, sustainable, and semi-destructive evaluation method for coating integrity.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

<a href="/en/project/EH23_021%2F0008594" target="_blank" >EH23_021/0008594: European Laboratory for Applied Research on Additive Spraying Technologies</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Materials

ISSN

1996-1944

e-ISSN

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Volume of the periodical

Volume 18

Issue of the periodical within the volume

January

Country of publishing house

CH - SWITZERLAND

Number of pages

20

Pages from-to

nestránkováno

UT code for WoS article

001404298100001

EID of the result in the Scopus database

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