Eventos Anais de eventos
COBEF 2021
11th Brazilian Congress on Manufacturing Engineering
EFFECT OF Cu ON MULTILAYER PTA DEPOSITION OF AISI 316 STAINLESS STEEL
Submission Author:
Gustavo Scheid Prass , SC
Co-Authors:
Gustavo Scheid Prass, Ana Sofia D'Oliveira
Presenter: Gustavo Scheid Prass
doi://10.26678/ABCM.COBEF2021.COB21-0243
Abstract
The coronavirus pandemic (COVID-19) in 2020, has leveraged and intensified the search for measures to prevent the spread of the virus. Surfaces of objects touched or handled by a large number of people are centers of virus propagation. On metallic surfaces such as stainless steel, coronavirus such as Covid-19 remain active for up to 72 hours, having a relevant role in their dissemination. There are several ways to mitigate this silent contamination scenario, among which can be mentioned the application of materials with antiviral properties on common use surfaces, such as door handles and elevator buttons. The antiviral action of copper is well known and researches have shown that the addition of copper to stainless steel can input antiviral behavior to the steel. However, the metallurgical characteristics altered by the addition of Cu required a better understanding particularly to assess the impact on the fabricability of the Cu modified steel. This study addressed the response of Cu modified stainless steel processed by plasma transferred arc. Multilayers were processed both with stainless steel and with Cu modified stainless steel. Results showed processing parameters need to be optimized for each composition as Cu alters wettability, hence the geometry of deposits. Differences in the microstructure and hardness can also be related to the presence of Cu in the composition of steel.
Keywords
Plasma Transferred Arc, Additive manufacturing, Copper, Stainless Steel
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