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- Title
ANÁLISIS DE LAS INCLUSIONES DE ESCORIA ESIS E ISIS EN LA RESISTENCIA MECÁNICA DE LAS JUNTAS SOLDADAS.
- Authors
Serrano Aguiar, Carlos Oswaldo; Castro Revelo, Jonathan Fernando; García Cabezas, Eduardo Francisco; Orozco Ramos, Jhonny Marcelo
- Abstract
The present research arises from the need to verify Item 9.3.8. Elongated slag inclusions (ESIs) and isolated (ISIs) of the API Standard 1104, where it establishes the dimensions that are considered as defaults these discontinuities and therefore rejected welded joints, these data are only empirical criteria. For that reason, it is necessary to determine the influence of the size of the slag inclusions on the mechanical strength of the weld. For the investigation, samples of material ASTM-A36 joined with welding SMAW E-6010 with different dimensions of inclusions (ISIs e (ESIs), incrusted burnt slag capsules inside the weld with dimensions of 1, 3 and 5 mm diameter for ISIs and a tungsten rod with a diameter of 1.6 mm and 25 mm in length are obtained and it simulates an ESI due to non-fusion with the material base. The dimensions of the discontinuities and the non-presence of other types of discontinuities are verified with Industrial Radiography. After this, the mechanical strength is determined obtaining the Stress-Deformation curve through tensile tests. The research is complemented by a simulation in the ANSYS 16.1 software in order to compare the results obtained in the laboratory and extrapolate to different dimensions of inclusions that were not made in the experimental methodology. With a statistical analysis the curve of the size of discontinuities vs the mechanical resistance is determined, establishing in percentages how much the variation of the size of inclusions influences in ISIs and ESIs in the tensile strength.
- Subjects
ISLAMIC State (Organization); WELDED joints; TENSILE tests; STATISTICS; TENSILE strength; DIAMETER; SLAG; TUNGSTEN alloys; APPLICATION program interfaces
- Publication
3C Tecnologia, 2019, Vol 8, Issue 4, p13
- ISSN
2254-4143
- Publication type
Article
- DOI
10.17993/3ctecno/2019.v8n4e32.13-31