| dc.creator |
Vásquez García, Optaciano |
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| dc.creator |
Vásquez García, Optaciano |
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| dc.date |
2019-09-04 |
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| dc.date |
2019-09-04 |
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| dc.identifier |
http://revistas.unasam.edu.pe/index.php/Aporte_Santiaguino/article/view/630 |
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| dc.identifier |
10.32911/as.2011.v4.n1.630 |
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| dc.identifier |
https://doi.org/10.32911/as.2011.v4.n1.630 |
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| dc.identifier |
http://repositorio.unasam.edu.pe/handle/UNASAM/4036 |
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| dc.identifier.uri |
http://revistas.unasam.edu.pe/index.php/Aporte_Santiaguino/article/view/630 |
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| dc.description |
In this paper is evaluation of susceptibility to hydrogen degradation ofAl SI steel 1045. Susceptibility of AISI 1045 steel to hydrogen embrittlement has been made by mechanical tensile test a static fatigue in hydrogen generation environments. Test were carred out using round notched specimens subjected to axial tensile load in O, IN EI2SO4 solution with to 0,25 g/1 arsenite sodium using hydrogen cathodic charging technique at densities current various. Reduction in area, tensile strength and fracture delayed of time were chosen relative changes as measures of susceptibility to hydrogen embrittlement. Fracture modes of failed samples were examined with of microscope. Mechanical test in inert environmental (air) comparisons and mechanical test in hydrogen generating environment show that both steels are susceptibility to hydrogen embrittlement.Samples of esferoidized steel have lower lost of ductility and strength than base metal samples. These variations in mechanical properties display a direct bearing on the current density. Also, both steels undergo changes in the fracture mode from a ductile to a brittle morphology in base metal while esferoidized morphology steel changes from highly ductile to a mixture of brittle fracture with ductile zones. These variations change with permanence time of hydrogen generated environmental steel. |
en-US |
| dc.description |
En este estudio se evalúa la susceptibilidad del acero AISI 1045 a la degradación por hidrógeno. La susceptibilidad del acero a la degradación por hidrógeno fue hecha mediante ensayos mecánicos de tracción lenta y de fatiga estática en un medio hidrogenado. Los ensayos fueron llevados a cabo con muestras cilíndricas entalladas sometidas a carga axial en un medio inerte (aire), yen una disolución de 1-12,50, O, IN a con 0,25 g/1 de arsenito de sodio, usando la técnica de carga catódica con hidrógeno a varias densidades de corriente. Como medidas de la susceptibilidad a la fragilización por hidrógeno fueron escogidas las variaciones relativas de la resistencia mecánica, la reducción en el área y el tiempo de fractura diferida.Finalmente fueron examinados los modos de fractura de las muestras fracturadas con un microscopio. Las comparaciones de los ensayos mecánicos en un medio inerte (aire) y los ensayos mecánicos en un medio hidrogenado, revelan que ambos aceros son susceptibles a la fragilización por hidrógeno. Las muestras de acero esferoidizado presentan menor pérdida de ductilidad y de la resistencia mecánica que las muestras de metal base. Estas variaciones en las propiedades mecánicas presentan una relación directa con la densidad de corriente aplicada. Asimismo, ambos aceros experimentan cambios en el modo de fractura pasando de una morfología dúctil a una frágil en el acero de suministro, mientras que en el acero esferoidizado cambia de una morfología altamente dúctil a una mezcla de fractura frágil con zonas dúctiles. Estas variaciones cambian con el tiempo de permanencia del acero en el medio generador de hidrógeno |
es-ES |
| dc.format |
application/pdf |
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| dc.format |
application/pdf |
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| dc.language |
spa |
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| dc.language |
spa |
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| dc.publisher |
Universidad Nacional Santiago Antúnez de Mayolo |
es-ES |
| dc.relation |
http://revistas.unasam.edu.pe/index.php/Aporte_Santiaguino/article/view/630/791 |
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| dc.relation |
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| dc.source |
2616-9541 |
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| dc.source |
2070-836X |
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| dc.source |
Aporte Santiaguino; Vol. 4, Núm. 1 (2011): Enero-Junio; Pág: 15-26 |
es-ES |
| dc.subject |
Fragilización por hidrógeno |
es-ES |
| dc.subject |
Fatiga estática |
es-ES |
| dc.subject |
Resistencia mecánica |
es-ES |
| dc.subject |
Ductilidad |
es-ES |
| dc.subject |
Esferoidizado |
es-ES |
| dc.title |
Susceptibility to degradation by absorbed hydrogen of AISI 1045 steel subjected to tests of slow traction and static fatigue in a hydrogenated medium |
en-US |
| dc.title |
Susceptibilidad a la degradación por Hidrógeno absorbido del acero AISI 1045 sometido a ensayos de tracción lenta y de fatiga estática en un medio hidrogenado |
es-ES |
| dc.type |
info:eu-repo/semantics/article |
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| dc.type |
info:eu-repo/semantics/publishedVersion |
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