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Measurements of residual stress on the 57Fe25Cr15Ni steel plate with no-filler TIG-welding process wer e carried out. This work was conducted to determine the nature of weld ability in synthesized steel. The bulks were f ormed in a dimension of 30x20x7 mm 3 to ease data retrieval. Results show that the large st residual stress occurred in the weld metal area, amounting to 82.40 MPa with lattice str tching of 0.18%. Conversely, the values decreased to 65.92 MPa and a stretch of 0.14% in the HAZ area. This residu al stress is a tensile stress that can reduce the m echanical strength of the material since it adds to the applied loads. Th is was confirmed by microstructure observations. Th e carbon content was very high in the dark lines. Weaken materials u sually start from this side and could initiate the intergranular cracks that rapidly migrate among its grain boundaries.

makara journal of technology

Residual Stress Measurements on the TIG Weld Joint of 57Fe15Cr25Ni Austenitic Steel for Structural Material Applications by Means X-Ray Diffraction Techniques