Ultrasonic nanocrystal surface modification: processes, characterization, properties, and applications

A Kishore, M John, AM Ralls, SA Jose, UB Kuruveri… - Nanomaterials, 2022 - mdpi.com
Ultrasonic nanocrystal surface modification (UNSM) is a unique, mechanical, impact-based
surface severe plastic deformation (S2PD) method. This newly developed technique finds …

Tribological, corrosion, and mechanical properties of selective laser melted steel

AM Ralls, M John, J Noud, J Lopez, K LeSourd… - Metals, 2022 - mdpi.com
In additive manufacturing (AM), selective laser melting (SLM) is a relatively novel technique
that utilizes thermal energy via laser beams to melt and solidify metallic powders into three …

Understanding the tribo-corrosion mechanisms of friction stir processed steel deposited by high-pressure deposition additive manufacturing process

AM Ralls, PL Menezes - The International Journal of Advanced …, 2023 - Springer
The present study investigates the application of friction stir processing (FSP) on the
degradation (wear, corrosion, and wear-corrosion synergism) response of cold spray …

Tribological performance of laser shock peened cold spray additive manufactured 316L stainless steel

AM Ralls, B Mao, PL Menezes - Journal of Tribology, 2023 - asmedigitalcollection.asme.org
In recent years, cold spray additive manufacturing (CSAM) has become an attractive
technology for surface modification and protection. However, due to the intrinsic porous …

Revealing the fretting corrosion mechanisms of laser shock peened cold spray 316 L stainless steel

AM Ralls, PL Menezes - Tribology International, 2024 - Elsevier
The influence of laser shock peening (LSP) on the fretting corrosion (FC) resistance of cold
spray (CS) 316 L stainless steel (SS) was investigated. Results reveal that LSP allowed for …

[HTML][HTML] Pitting corrosion behavior and corrosion protection performance of cold sprayed double layered noble barrier coating on magnesium-based alloy in chloride …

M Daroonparvar, A Helmer, AM Ralls… - Journal of Magnesium …, 2023 - Elsevier
Nitrogen processed, cold sprayed commercially pure (CP)-Al coatings on Mg-based alloys
mostly lack acceptable hardness, wear resistance and most importantly are highly …

[HTML][HTML] A study of the parameters affecting the particle velocity in cold-spray: Theoretical results and comparison with experimental data

L Alonso, MA Garrido-Maneiro, P Poza - Additive Manufacturing, 2023 - Elsevier
Within coating applications, cold-spray is nowadays an extended technique commonly used
in environments such as the additive manufacturing or repair industries. The differential …

Effect of ultrasonic impact peening on stress corrosion cracking resistance of austenitic stainless-steel welds for nuclear canister applications

M John, AM Ralls, M Misra, PL Menezes - Journal of Nuclear Materials, 2023 - Elsevier
In nuclear applications, the utilization of austenitic-based stainless steel (ASS) components
is an ideal material choice for storing spent nuclear fuels in dry storage canisters (DSC) …