Abstract
Stainless steel 316 L specimens, previously deposited by supersonic laser deposition, were welded by laser metal deposition method (SLD_W_LMD). The issues of structure formation in deposited SLD samples with additional laser processing were considered. The microstructure and mechanical properties of the specimens, the metallurgical anisotropy between powder particles and gradient structure of SLD_W_LMD specimen was investigated. The microhardness of specimen obtained by SLD higher into 1.7 times compare SLD_W_LMD specimen. It is shown that the hardness of the SLD samples is achieved due to the partial preservation of the initial powder particles. Tensile strength SLD_W_LMD specimen higher into 1.14 times comparison to specimen obtained by SLD. The relative deformations of the specimen SLD_W_LMD are 1.5 times higher than that of the SLD samples. These results are achieved due to good metallurgical contact between powder particles, which is achieved due to laser influence.
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