Toz Metalürjisi Yöntemi ile Üretilen 316L Östenitik Paslanmaz Çeliğin Kaynaklanabilirliğinin İncelenmesi.

316L austenitic stainless steels were produced by powder metallurgy method at 600 MPa and 700 MPa pressing pressures in this study. The weldability of these steels was investigated by applying the resistance spot welding method. The microstructure of the welded sample was analyzed in detail with optical microscope. In addition, the hardness values of the base metal, heat-affected zone and weld metal regions formed as a result of resistance spot welding process were measured. Consequently, it was observed that the base metal microstructure was mainly composed of austenite phase. Due to the high heat occurring in resistance spot welding process, weld metal mainly consisted of delta ferrite phase in the austenite matrix. Hardness values increased from base metal to weld metal. Also, the hardness values measured in different welding regions of the sample obtained at 700 MPa pressing pressure were found to be higher than the sample obtained at 600 MPa pressing pressure. [ABSTRACT FROM AUTHOR]