The Boeing Company
SYSTEMS AND METHODS FOR DETERMINING CONCENTRATIONS OF MOBILE HYDROGEN OF METALLIC OBJECTS AND/OR REDUCING CONCENTRATIONS OF MOBILE HYDROGEN OF METALLIC OBJECTS

Abstract:

An analytical inspection system for determining concentration of mobile hydrogen of and/or on surfaces of a metallic object can include: a vacuum furnace; a hydrogen sensing device; and/or a flow path from the furnace to the sensing device. The sensing device can be configured to detect and/or measure the mobile hydrogen at levels less than or equal to 1 part per million (ppm). An analytical inspection method for determining concentration of mobile hydrogen of and/or on surfaces of a metallic object can include: placing the object into a vacuum furnace; drawing a vacuum in the furnace; and/or simultaneously heating the metallic object in the furnace and measuring a quantity of the mobile hydrogen released from the object using a hydrogen sensing device. The sensing device can be configured to detect and/or measure the mobile hydrogen at levels less than or equal to 1 ppm.