@article{daroonparvar_helmer_ralls_khan_kasar_menezes_misra_gupta_2023, title={Enhanced wear and corrosion resistances of Al coated Mg alloy using high pressure cold sprayed commercially pure-zirconium coating}, volume={346}, ISSN={["1873-4979"]}, DOI={10.1016/j.matlet.2023.134473}, abstractNote={Commercially pure (CP) Zr coating with high microhardness (387 ± 26 HV0.025) was produced on CP-Al coated Mg alloy by a high pressure cold spray (HPCS) system. Substantial densification of Al layers, beneath deposited Zr coating, was observed because of shot-peening influence by Zr particles. The electrochemical impedance spectroscopy after 24 h of immersion in 3.5 wt% NaCl electrolyte revealed highest charge transfer resistance (Rct), polarization resistance (Rpol), and corrosion resistance (|Z|f=0.01Hz) for the Zr/Al coated Mg alloy. Also, wear rate for the Zr/Al coating was lowest which could be attributed to its higher hardness caused by smaller crystallite size and higher dislocation density.}, journal={MATERIALS LETTERS}, author={Daroonparvar, M. and Helmer, A. and Ralls, A. M. and Khan, M. U. Farooq and Kasar, A. K. and Menezes, P. L. and Misra, M. and Gupta, R. K.}, year={2023}, month={Sep} }
 @article{daroonparvar_helmer_ralls_khan_kasar_gupta_misra_shao_menezes_shamsaei_2023, title={Pitting corrosion behavior and corrosion protection performance of cold sprayed double layered noble barrier coating on magnesium-based alloy in chloride containing solutions}, volume={11}, ISSN={["2213-9567"]}, DOI={10.1016/j.jma.2023.09.008}, abstractNote={Nitrogen processed, cold sprayed commercially pure (CP)-Al coatings on Mg-based alloys mostly lack acceptable hardness, wear resistance and most importantly are highly susceptible to localized corrosion in chloride containing solutions. In this research, commercially pure α-Ti top coating having good pitting potential (∼ 1293 mVSCE), high microhardness (HV0.025: 263.03) and low wear rate was applied on a CP-Al coated Mg-based alloy using high pressure cold spray technology. Potentiodynamic polarization (PDP) curves indicated that the probability of transition from metastable pits to the stable pits for cold spayed (CS) Al coating is considerably higher compared to that with the CS Ti top coating (for Ti/Al/Mg system). In addition, CS Ti top coating was in the passivation region in most pH ranges even after 48 h immersion in 3.5 wt% NaCl solution. The stored energy in the CS Ti top coating (as a passive metal) was presumed to be responsible for the easy passivation. Immersion tests indicated no obvious pits formation on the intact CS Ti top coating surface and revealed effective corrosion protection performance of the CS double layered noble barrier coatings on Mg alloys in 3.5 wt% NaCl solution even after 264 h.}, number={9}, journal={JOURNAL OF MAGNESIUM AND ALLOYS}, author={Daroonparvar, M. and Helmer, A. and Ralls, A. M. and Khan, M. U. Farooq and Kasar, A. K. and Gupta, R. K. and Misra, M. and Shao, S. and Menezes, P. L. and Shamsaei, N.}, year={2023}, month={Sep}, pages={3099–3119} }
 @article{daroonparvar_helmer_ralls_kasar_khan_menezes_misra_shao_gupta_2023, title={Study on the corrosion behavior of cold sprayed aluminum-based coatings on Mg-based alloy in chloride containing solution: Effect of N-2 processing gas temperature}, volume={223}, ISSN={["1879-0496"]}, DOI={10.1016/j.corsci.2023.111454}, abstractNote={Cold sprayed (CS) commercially pure Al-based coatings (processed at various propellent N2 gas temperatures) were applied on Mg-based alloys. The porosity percentage of the CS coatings decreased, and the flattening ratio increased as the N2 processing gas temperature reduced due to the effect of the in-situ tamping densification. This also led to the obvious reduction of wear rate of the CS Al-based coatings. In the present research, among the Al coated Mg alloys having higher general corrosion resistance (i.e., higher |Z|f=0.01 Hz and polarization resistance at the corrosion potential (Rpol)), a decrease in dislocation density and microstrain was postulated to lead to the improvement of overall pitting behavior of the CS Al-based coating (processed at the lowest N2 propellent gas temperature) after 12 days immersion in 3.5 wt% NaCl solution.}, journal={CORROSION SCIENCE}, author={Daroonparvar, M. and Helmer, A. and Ralls, A. M. and Kasar, A. K. and Khan, M. U. Farooq and Menezes, P. L. and Misra, M. and Shao, S. and Gupta, R. K.}, year={2023}, month={Oct} }