Effect of temperature history on thermal properties of additively manufactured C-18150 alloy samples

• The dominant phase in the samples both before and after aging is FCC-Cu. Thermal diffusivity/conductivity non-sensitive to grain orientations. diffusivity decisive factor influencing thermal conductivity. Solid solute atoms significantly reduce diffusivity/conductivity. Aging treatment recovers property by precipitating solid solutes. effects of history on properties C-18150 (Cu-1.5Cr-0.5Zr, wt%) parts made laser powder-bed-fusion (L-PBF) additive manufacturing (AM) process with three different fabrication orientations (horizontal, angled, vertical build direction) were investigated. A significant difference between as-fabricated fully heat-treated L-PBF was observed, mechanisms such behaviors are discussed.