Investigation of nanostructured surface layer of severe shot peened AISI 1045 steel via response surface methodology
| Autor: | İbrahim Kocabaş, Erfan Maleki, Fazil Husem, Okan Unal, Haluk Yilmaz |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Carbon steel Applied Mathematics 020208 electrical & electronic engineering 010401 analytical chemistry Peening 02 engineering and technology engineering.material Condensed Matter Physics Shot peening 01 natural sciences 0104 chemical sciences Residual stress Shot (pellet) 0202 electrical engineering electronic engineering information engineering engineering Response surface methodology Surface layer Electrical and Electronic Engineering Composite material Severe plastic deformation Instrumentation |
| Zdroj: | Measurement. 148:106960 |
| ISSN: | 0263-2241 |
| Popis: | Shot peening (SP) and also severe shot peening (SSP) provide high level compressive residual stress on a certain thickness just beneath the surface. By exposing severe plastic deformation (SPD) via SSP, the nanocrystallization is formed without any chemical alteration and the structure is to be hardened by fully mechanized process. The difference among SP, SSP and repeening (RP) is only related with the selection of the input parameters. Most of the input parameters combination constructs the Almen intensity which is the most powerful condition to be made the decision on the final shot peening of real parts. AISI 1045 medium carbon steel is selected for the optimization of input parameters (shot size, peening duration and air pressure at constant coverage-100%) by investigating the output responses (residual stress, hardness) using response surface methodology. Optimum SP parameters are introduced by response optimizer and the model is verified by the confirmation tests. |
| Databáze: | OpenAIRE |
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