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Analysis and Verification of Physical Properties of an AISI 4140 Steel by Vickers Indentation Analysis According to the Presence of Residual Stresses

Jung, Changho ; Lee, Moon G. ; Jeon, Yongho

Archives of metallurgy and materials, 2019-01, Vol.64 (3), p.823-827 [Periódico revisado por pares]

Warsaw: Polish Academy of Sciences

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Título:
Analysis and Verification of Physical Properties of an AISI 4140 Steel by Vickers Indentation Analysis According to the Presence of Residual Stresses
Autor: Jung, Changho ; Lee, Moon G. ; Jeon, Yongho
Assuntos: Chromium molybdenum steels ; Deformation ; Diamond pyramid hardness tests ; fem analysis ; High speed ; High strength steels ; material property ; Mathematical analysis ; Measurement methods ; Physical properties ; Quality control ; Residual stress ; Stress analysis ; Stress measurement ; Stress-strain curves ; surface treatment ; vickers indentation
É parte de: Archives of metallurgy and materials, 2019-01, Vol.64 (3), p.823-827
Descrição: Residual stress has a great influence on the metal, but it is difficult to measure at small area using a general method. Residual stress calculations using the Vickers indentation can solve this problem. In this paper, a numerical simulation has been made for the residual stress measurement method of metal material deformed by high-speed impact. Then, the stress-strain curve at the high-speed deformation was confirmed through actual experiments, and the residual stresses generated thereafter were calculated by the Vickers indenter method. A Vickers indentation analysis under the same conditions was performed at the position where a residual stress of about 169.39 MPa was generated. Experiments were carried out and high speed impact was applied to the specimen to generate residual stress. The obtained results indicate that it is possible to identify residual stresses in various metals with various shapes through Vickers indentation measurements, and to use them for process and quality control.
Editor: Warsaw: Polish Academy of Sciences
Idioma: Polonês;Inglês

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Analysis and Verification of Physical Properties of an AISI 4140 Steel by Vickers Indentation Analysis According to the Presence of Residual Stresses

Jung, Changho ; Lee, Moon G. ; Jeon, Yongho

Warsaw: Polish Academy of Sciences

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