Abstract
Effect of the pulsating water jet on the plastic deformations of surface of Ti6Al4V was examined. Existing research papers investigating the interaction of Ti6Al4V with pulsating water and water impact are focused on culmination erosion stage of the impacted area. In this article, the initial stages of erosion were studied in term of the increasing but relatively low number of impingement on the microplastic deformation. The number of impacts varied from 1050 to 63000 impacts. The PWJ was positioned at the standoff distance of 5.5 mm above material surface. The aim of this research was to study the influence of early erosion stage, consisting of plastic deformation and material removal in preferential sites, on the material structure. The determination of early erosion stages can be used for selecting the conditions of PWJ leading to the surface strengthening, analogical to shot peening. Sites with significance to the surface strengthening were observed and discussed. Interphase boundaries and other structural characteristic play significant role in the earliest stages of erosion.
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The authors are grateful for financial support of the project GACR No 19-000408S.
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Poloprudský, J., Chlupová, A., Kruml, T., Hloch, S. (2021). Identification of Local Microplasticity on Ti6Al4V After Impingement of Periodically Acting Water Clusters. In: Hloch, S., Klichová, D., Pude, F., Krolczyk, G.M., Chattopadhyaya, S. (eds) Advances in Manufacturing Engineering and Materials II. ICMEM 2021. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-030-71956-2_6
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DOI: https://doi.org/10.1007/978-3-030-71956-2_6
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