Effect of cold-working process on cyclic deformation of electrolytic copper (2019)
- Authors:
- USP affiliated authors: MARTINEZ, GUSTAVO ARISTIDES SANTANA - EEL ; BAPTISTA, CARLOS ANTONIO REIS PEREIRA - EEL
- Unidade: EEL
- DOI: 10.1590/0370-44672018720157
- Assunto: COBRE
- Keywords: drawing; rotary swaging; fatigue; cyclic behavior; Copper
- Language: Inglês
- Abstract: Cyclic softening and hardening processes are expressed by the change in the stress amplitude necessary to cause a given strain amplitude. Understanding the cyclic stress strain behavior of materials is an important step in the complex study of their fatigue be havior. The potential differences between the defect structures of cold-formed materials may also be related to internal stress changes. Considering that wiredrawing and rotary swaging apply distinct forces on the material in order to obtain the product, differences may arise in the defect structures that can, consequently, affect its mechanical behavior. This study aims at evaluating and comparing, by means of strain-controlled fatigue tests, the cyclic behavior of polycrystalline electrolytic copper cold-formed by wiredrawing (WD) and rotary swaging (RS) with 87% area reduction. The fatigue test results evidenced the highest resistance to cyclic deformation presented by WD material in the low cycle regime. It was observed that the strain hardening for both cold forming conditions is related to a great increase of long-range stresses in the defect structure and the cyclic softening is related, mainly, to the subsequent drop of that stresses. The WD internal stresses resulted slightly bigger than those of the RS condition.
- Source:
- Título: Rem - international engineering journal
- ISSN: 2448167X
- Volume/Número/Paginação/Ano: v.72, n.3, p.485-491, 2019
- Este periódico é de acesso aberto
- Este artigo é de acesso aberto
- URL de acesso aberto
- Cor do Acesso Aberto: gold
- Licença: cc-by
-
ABNT
MARTINEZ, Gustavo Aristides Santana e BAPTISTA, Carlos Antonio Reis Pereira. Effect of cold-working process on cyclic deformation of electrolytic copper. Rem - international engineering journal, v. 72, n. 3, p. 485-491, 2019Tradução . . Disponível em: https://doi.org/10.1590/0370-44672018720157. Acesso em: 29 dez. 2025. -
APA
MARTINEZ, G. A. S., & Baptista, C. A. R. P. (2019). Effect of cold-working process on cyclic deformation of electrolytic copper. Rem - international engineering journal, 72( 3), 485-491. doi:10.1590/0370-44672018720157 -
NLM
MARTINEZ GAS, Baptista CARP. Effect of cold-working process on cyclic deformation of electrolytic copper [Internet]. Rem - international engineering journal. 2019 ;72( 3): 485-491.[citado 2025 dez. 29 ] Available from: https://doi.org/10.1590/0370-44672018720157 -
Vancouver
MARTINEZ GAS, Baptista CARP. Effect of cold-working process on cyclic deformation of electrolytic copper [Internet]. Rem - international engineering journal. 2019 ;72( 3): 485-491.[citado 2025 dez. 29 ] Available from: https://doi.org/10.1590/0370-44672018720157 - The influences of the variable speed and internal die geometry on the performance of two commercial soluble oils in the drawing process of pure copper fine wire
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Informações sobre o DOI: 10.1590/0370-44672018720157 (Fonte: oaDOI API)
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