Özet:

In this study, the mechanical and metallurgical properties of AISI 420 martensitic stainless weldment that was joined with CO laser beam welding as-received and heat treated condition was investigated. As a result of the study, It was determined that the as-received samples was not present desired mechanical properties. Desired mechanical properties from pre and post weld heat treated joints were obtained with the tempering of martensite in the microstructure and espacially with reducing of the microcrack propagations of weld metal and HAZ

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