| Autor: |
J., Sudha, S., Arun Raj, M., Muthunishabegum, Padmashreekrishna |
| Předmět: |
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| Zdroj: |
Academic Journal of Manufacturing Engineering; 2022, Vol. 20 Issue 1, p42-46, 5p |
| Abstrakt: |
Austenitic 316L Stainless Steel are TIG (Tungsten Inert Gas) welded and are water jet peened by varying two main parameters - pressure and stand-off distance. This induces compressive residual stresses by local plastic deformation. The residual stresses of samples before and after water jet peening are measured using XRD. TIG welded samples show residual tensile stress and peened samples show compressive stress. Compressive stresses in the range of 111MPa to 118MPa are induced by water jet peening, of which the samples peened with 50mm Stand-Off Distance (SOD) has more compressive residual stress. Samples peened with SOD of 50mm shows good corrosion resistance, micro hardness and good surface finish when compared to samples peened with SOD of 75mm. It has been observed that only SOD plays an important role in enhancing the properties after peening. The microstructure of the peened region in the weldment consists of fine grains due to impact of high pressure water jet. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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