Porous metal coupon with braze material infiltration barrier for repairing component, component with same and related method

A metal coupon configured for repair of a component, the metal coupon comprising:

• an additively manufactured (AM) metal member sized and shaped to correspond to a coupon opening in a body;
• at least two porous regions of the AM metal member, wherein at least one of the at least two porous regions is configured to be infiltrated by a braze material for coupling the AM metal coupon in the coupon opening;
• and
• a braze material infiltration barrier positioned between two porous regions of the at least two porous regions, wherein the braze material infiltration barrier has a lower porosity than the two porous regions of the at least two porous regions, and wherein the braze material infiltration barrier separates the braze material in the at least one of the at least two porous regions from at least one other of the at least two porous regions.