Establishing relationship between fusion zone hardness and grain size of gas tungsten constricted arc welded thin sheets of titanium alloy
| Autor: | Vijay Petley, V. Vaithiyanathan, Sudersanan Malarvizhi, Shweta Verma, V. Balasubramanian |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
General Chemical Engineering Gas tungsten arc welding General Engineering General Physics and Astronomy chemistry.chemical_element Titanium alloy Welding Tungsten Grain size Corrosion law.invention Specific strength chemistry law General Earth and Planetary Sciences General Materials Science Arc welding Composite material General Environmental Science |
| Zdroj: | SN Applied Sciences. 2 |
| ISSN: | 2523-3971 2523-3963 |
| DOI: | 10.1007/s42452-019-1844-y |
| Popis: | Ti–6Al–4V alloys are perfectly suited for fan compressor blade material in advanced aero engine components due to outstanding resistance to corrosion and specific strength was high in both room temperature and elevated temperature. For autogeneous welding of thin sheets of Ti–6Al–4V alloy, the gas tungsten constricted arc welding (GTCAW) was established to be beneficial than the gas tungsten arc welding process. The performance of welded joints depends on the fusion zone grain size (FZG) and fusion zone hardness (FZH), which need to be suitably optimized and controlled to attain advantageous mechanical characteristics of the joint. Hence, in this research study, efforts were taken to develop empirical relationships for predicting the FZH and FZG incorporating very important GTCAW parameters. Parameter optimization was performed using response surface methodology. Additionally, the influence of GTCAW parameters on FZG and FZH was analyzed. From the results, it is inferred that the inter-pulse frequency has better influence on FZG and FZH compared to other parameters. |
| Databáze: | OpenAIRE |
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