| 摘要 |
In order to provide an alloy structure of any shape and size that has a high uniformity of elemental composition and mechanical strength distribution, and has excellent high temperature strength and corrosion resistance, this alloy powder used in fused deposition modeling is characterized by containing, in an atomic concentration of 5-30at% each, Fe and at least four elements which have a ratio of atomic radius to the atomic radius of an Fe atom of 0.83-1.17 and are selected from the group of elements consisting of atomic number 13 to atomic number 79 included in groups<b/>3 to 16 of the periodic table, by the difference in atomic concentration of at least four elements out of the Fe and the aforementioned at least four elements being less than 3at%, and by containing, as unavoidable impurities, an atomic concentration of less than or equal to 0.005 wt% of P, less than or equal to 0.040 wt% of Si, less than or equal to 0.002 wt% of S, less than or equal to 0.005 wt% of Sn, less than or equal to 0.002 wt% of Sb, less than or equal to 0.005 wt% of As, less than or equal to 0.050 wt% of Mn, less than or equal to 0.001 wt% of O, and less than or equal to 0.002 wt% of N. |
