Additively　manufactured　tungsten　and　its　alloys　have　been　widely　used　for　plasma　facing　components　(PFCs)　in　future　nuclear　fusion　reactors.　Under　the　fusion　process,　PFCs　experience　a　high-temperature　exposure,　which　will　ultimately　affect　the　microstructural　features,　keeping　in　mind　the　importance　of　microstructures.　In　this　study,　microhardness　and　electron　backscatter　diffraction　(EBSD)　techniques　were　used　to　study　the　specimens.　Vickers　hardness　method　was　used　to　study　tungsten　under　different　parameters.　EBSD　technique　was　used　to　study　the　microstructure　and　Kikuchi　pattern　of　samples　under　different　orientations.　We　mainly　focused　on　selective　laser　melting　(SLM)　parameters　and　the　effects　of　these　parameters　on　the　results　of　different　techniques　used　to　study　the　behavior　of　samples.