A coating process for applying a bifurcated coating to an article, comprising: applying an aluminizing slurry to a first portion of the article, wherein the aluminizing slurry includes, by weight, 35% to 65% of a donor powder, 1% to 25% of an activator powder, and 25% to 60% of a binder, the donor powder including a metallic aluminum alloy having a melting temperature higher than aluminum, and the binder including at least one organic polymer gel; applying a chromizing slurry to a second portion of the article, the chromizing slurry including a chromizing donor powder that includes chromium, an inorganic salt having a melting point that is less than or equal to 800 °C, a binder and a chromizing activator, wherein the activator includes a species selected from a group consisting of NH 4 Cl, NH 4 F, NH 4 Br, CrCl 2, CrCl 3, AlCl 3, and any combinations thereof, and wherein the chromizing slurry includes, by weight, 1% to 60% of the chromizing donor powder, 1% to 70% of the inorganic salt, 1% to 30% of the chromizing activator, and at least 1% of the binder; wherein both the aluminizing and the chromizing slurry are applied directly to the surface of the article; and simultaneously heat treating the article, the aluminizing slurry, and the chromizing slurry, heat treating the aluminizing slurry forming an aluminide coating on the first portion of the article and an aluminide diffusion zone between the article and the aluminide coating, heat treating the chromizing slurry forming a chromide coating on the second portion of the article and a chromide diffusion zone between the article and the chromide coating, wherein the first portion and the second portion are both maintained in an unmasked state while applying the aluminizing slurry and the chromizing slurry and during the heat treating, wherein the article is a turbine component, and wherein the turbine component is a bucket, the first portion is an airfoil, and the second portion is a shank. applying an aluminizing slurry to a first portion of the article, wherein the aluminizing slurry includes, by weight, 35% to 65% of a donor powder, 1% to 25% of an activator powder, and 25% to 60% of a binder, the donor powder including a metallic aluminum alloy having a melting temperature higher than aluminum, and the binder including at least one organic polymer gel; applying a chromizing slurry to a second portion of the article, the chromizing slurry including a chromizing donor powder that includes chromium, an inorganic salt having a melting point that is less than or equal to 800 °C, a binder and a chromizing activator, wherein the activator includes a species selected from a group consisting of NH 4 Cl, NH 4 F, NH 4 Br, CrCl 2, CrCl 3, AlCl 3, and any combinations thereof, and wherein the chromizing slurry includes, by weight, 1% to 60% of the chromizing donor powder, 1% to 70% of the inorganic salt, 1% to 30% of the chromizing activator, and at least 1% of the binder; wherein both the aluminizing and the chromizing slurry are applied directly to the surface of the article; and simultaneously heat treating the article, the aluminizing slurry, and the chromizing slurry, heat treating the aluminizing slurry forming an aluminide coating on the first portion of the article and an aluminide diffusion zone between the article and the aluminide coating, heat treating the chromizing slurry forming a chromide coating on the second portion of the article and a chromide diffusion zone between the article and the chromide coating, wherein the first portion and the second portion are both maintained in an unmasked state while applying the aluminizing slurry and the chromizing slurry and during the heat treating, wherein the article is a turbine component, and wherein the turbine component is a bucket, the first portion is an airfoil, and the second portion is a shank.