embrittlement caused by hydrogen as atomic hydrogen from the 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 olukorras (vt vesinikhaprumine, habras purunemine)