decalescence

plural decalescences

1. countableuncountableA decrease in temperature that occurs while heating metal through a range of temperatures in which change in structure occurs.

   A very important feature is that steel containing hardening carbon, i.e., steel above the temperature of decalescence, is non-magnetic.

   2017, Erik Oberg, Heat-Treatment of Steel, →ISBN

   2 more examples

   The temperatures at which decalescence occurs vary with the amount of carbon in the steel, and are also higher for high-speed steel than for ordinary crucible steel.

   1919, Machinery's Handbook for Machine Shop and Drafting-room

   The decalescence point indicates the temperature at which a decided change In the Internal condition of steel takes place, and above which steel must be heated in order that it may be properly hardened by quenching.

   1964, Franklin D. Jones, Machine Shop Training Course - Volume 2, →ISBN, page 526