Noun
tin pest (uncountable)
An autocatalytic transformation of tin into a different allotrope that causes tin objects to become brittle and flaky. The phase transition conversion of β-tin (white tin) into α-tin (gray tin/grey tin).
Tin pest can occur in lead-free solders, leading to loss of the soldered joint. Source: Internet
Tin pest was a particular problem in northern Europe in the 18th century as organ pipes made of tin alloy would sometimes be affected during long cold winters. Source: Internet