Optimization of TIG Welding Process Parameters for X70-304L Dissimilar Joint Using Taguchi Method
| Autor: | Mohamed Hadji, Taher Saadi, Nabil Bensaid, Mohamed Farid Benlamnouar, Sabah Senouci, Yazid Laib dit Laksir, Riad Badji |
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| Rok vydání: | 2019 |
| Předmět: |
0209 industrial biotechnology
Materials science Gas tungsten arc welding Process (computing) Mechanical engineering 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Atomic and Molecular Physics and Optics Taguchi methods 020901 industrial engineering & automation General Materials Science 0210 nano-technology Joint (geology) Tensile testing |
| Zdroj: | Solid State Phenomena. 297:51-61 |
| ISSN: | 1662-9779 |
| Popis: | The optimization of mechanical properties of the welded joints requires a statistical approach such as Taguchi experimental designs associated with experimental techniques and laboratory characterizations. The aim of this work is to propose a method of optimization of the mechanical performances of a TIG dissimilar welding of two grades of steels: a high strength low alloy steel X70 and an austenitic stainless steel 304L. The experimental designs were chosen according to the Taguchi method L9. The metallurgical characterization includes optical microscopy, SEM microscopy, EDX analyses and mechanical tests to establish a relationship between welding parameters, microstructures and mechanical behavior in different zones of a dissimilar weld joint. The results showed that the hardness is more strongly related to microstructural evolution than tensile strength of dissimilar joint. It was found that gas flow is the main significant TIG welding parameter affecting dissimilar weld characteristics. |
| Databáze: | OpenAIRE |
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