embrittlement caused by hydrogen absorbed as atomic hydrogen from a service environment resulting in delayed brittle failure on the workpiece under tensile stress (see: hydrogem embrittlement, brittle fracture), kasutuskeskkonna atomaarsest vesinikust põhjustatud haprumine, mis kutsub esile detaili hilisema purunemise tõmbepinge toimel (vt vesinikhaprumine, habras purunemine)