Depth, Polarity and Welding Current Effect on Diffusible Hydrogen Content With Stainless Steel Electrodes in Underwater Wet Welding
The evaluation of diffusible hydrogen is critical in determining the quality and strength of UnderWater Wet Welding joints. The objective of this study was to separately evaluate the influence of four fundamental variables on the amount of diffusible hydrogen in underwater welding: welding depth, po...
| Published in: | Ciencia en Desarrollo |
|---|---|
| Main Authors: | , , , |
| Format: | Article in Journal/Newspaper |
| Language: | Spanish |
| Published: |
Universidad Pedagógica y Tecnológica de Colombia
2022
|
| Subjects: | |
| Online Access: | https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/14091 https://doi.org/10.19053/01217488.v13.n2.2022.14091 |
| Summary: | The evaluation of diffusible hydrogen is critical in determining the quality and strength of UnderWater Wet Welding joints. The objective of this study was to separately evaluate the influence of four fundamental variables on the amount of diffusible hydrogen in underwater welding: welding depth, polarity, current and electrode specification. Applying a full two-level factorial design to these four factors. Statistical analysis allowed us to establish the relevance of the variation of each factor on the diffusible hydrogen content of the welds. Austenitic stainless steel electrodes were used. The lowest Diffusible Hydrogen values were obtained at higher depth and welding current levels, with positive polarity, and electrode E312 in detriment to E309. In this study, the factorl with the greatest impact on Diffusible Hydrogen was the Welding Depth. El analisis del hidrogeno difusible es índice fundamental para determinar la calidad y integridad de lasuniones soldadas fabricadas mediante el proceso de soldadura submarina húmeda. El objetivo de esteestudio fue evaluar individualmente la influencia de cuatro variables fundamentales sobre la cantidad dehidrogeno difusible en la soldadura submarina mojada: profundidad de operación, polaridad, corrientey tipo de electrodo. Fo aplicado un diseño factorial completo de dos niveles a estos cuatro factores. Elanalisis estadístico permitio establecer la efectividad de la variación de cada factor y determinar el ordende su importancia sobre el valor del hidrogeno difusible. La soldadura submarina húmeda se realizó conelectrodos de acero inoxidable austenitico. Los valores mas bajos de hidrógeno difusible se obtuvieron amayores niveles de profundidad y corriente de soldadura, con polaridad positiva, y electrodo E312.En esteestudio, el factor con mayor impacto en el valor del Hidrógeno Difusible es la Profundidad.Palabras clave: Soldadura Submarina Mojada, Hidrógeno Difusible, Profundidad. |
|---|