Correlação entre os ensaios de esclerometria pendular e método charpy para aços SAE 1080

More and more practicality and speed in material analysis processes are sought. One of the techniques to quantify the toughness of metallic samples is the Charpy method. However, the application of pendulum scratching test analyses to obtain properties such as toughness and dynamic hardness can be promising, due to its fast execution and low cost. Furthermore, it is expected to be a more suitable alternative for indirectly measuring the impact toughness of thin metal sheets, which are difficult to measure using the Charpy method. In addition to factors that hinder the use of the Charpy method, such as the plastic behavior of the material, the required standardized thicknesses and the time spent related to the manufacture of samples. Thus, the objective is to seek for a correlation between the two techniques in the characterization of SAE 1080 carbon steel samples. This material was chosen due to the ease of obtaining samples with homogeneous microstructures, through isothermal treatments. A comparison was made between the Charpy method and the pendulum hammer method, including the preparation of the specimens for both equipment, isothermal treatments and the analysis of the energies obtained in the tests. By comparing the results, one can look for a strong correlation between both measured properties. The pendulum scratching test provided results that showed a strong correlation with the results of Charpy tests performed on the samples, with correlation coefficients and Pearson's determination of approximately 0.98 and 0.97, respectively. Such a correlation between significantly different properties encourages further studies that may not only explain the mechanisms involved, but also expand knowledge about the mechanical properties of materials.

Grantor dc:publisher

Universidade Federal do Rio Grande do Norte

Year dc:date.issued

2023

Author dc:creator

• Cattaneo, Mariane de Lacerda

Advisor dc:contributor.advisor

• Sousa, Fábio José Pinheiro

• Engenharia Mecânica
• Esclerometria pendular
• Método Charpy
• Tenacidade ao impacto

Statement dc:rights

• Acesso Aberto

Language dc:language

pt_BR

Repository record dc:identifier.uri

https://repositorio.ufrn.br/handle/123456789/53028

OAI identifier oai:identifier

oai:repositorio.ufrn.br:123456789/53028