a process in which brittleness is induced in metals, especially steels, when immersed in acid solutions; acids contain hydrogen and metals absorb hydrogen, becoming brittle and can be readily fracture when subjected to stress (see: embrittlement; compare: hydrogen embrittlement), metallide, eelkõige teraste happesöövituse tagajärjel haprumine analoogselt vesinikhaprumisele (happed sisaldavad vesinikku, mis lahustub metallis); see viib purunemisele pingeolukorras (vt haprumine; vrd vesinikhaprumine), acid treatment of a certain metals resulting in a type of hydrogen embrittlement