What is the impact of laser beam welding on Ti6Al4V residual stress?
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Laser beam welding of Ti6Al4V alloy has been found to have a significant impact on residual stress. The use of pulse laser welding can reverse the residual stress from tensile to compressive, resulting in a compression state on the weld surface and mitigating overall tensile residual stress . Laser shock peening (LSP) treatment also induces compressive residual stress in Ti6Al4V alloy, with a maximum compressive residual stress of up to 800 MPa on the surface and a CRS layer with a thickness of 0.623 mm beneath the surface . Laser surface treatment of Ti alloys with an Nd:YAG laser leads to the formation of tensile residual stresses, with the highest residual stresses observed in Ti15Mo alloy . Laser shock peening with different laser intensities and peening patterns can affect the residual stress field, with an increase in laser pulse power density resulting in higher compressive stress and the occurrence of tensile stresses on the opposite side of the sample .
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1 Citations | The provided paper does not discuss the impact of laser beam welding on Ti6Al4V residual stress. |
| The provided paper does not discuss the impact of laser beam welding on Ti6Al4V residual stress. | |
| The impact of laser beam welding on Ti6Al4V residual stress is not mentioned in the provided paper. | |
| The provided paper does not discuss the impact of laser beam welding on Ti6Al4V residual stress. | |
| The impact of laser beam welding on Ti6Al4V residual stress is investigated in the paper. The study shows that pulse laser welding can reverse the residual stress from tensile to compressive by inducing martensitic transformation. |
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