decalescencen.
/diːkəˈlɛsəns/ Metallurgy.
(See quot. 1954.)
ΚΠ
1893 I. K. Funk et al. Standard Dict. Eng. Lang. I Decalescence.
1912 A. Sauveur Metallogr. Iron & Steel vii. 2 The notation Ar1 and Ac1 are used for the recalescence point and its reversal... The point Ac1 has been called point of ‘decalescence’ by some writers.
1916 D. K. Bullens Steel & its Heat Treatm. 425/2 Decalescence.
1954 Gloss. Terms Iron & Steel (B.S.I.) i. 11 Decalescence, absorption of heat without increase of temperature when the metal is heated through the critical points.
Derivatives
decaˈlescent adj.
ΚΠ
1910 E. F. Lake Composition & Heat Treatm. Steel vi. 68 The temperature again falls uniformly until it reaches..1350° F., at which point the second change takes place..designed Ar 2. After the change has been completed at this point, it again lowers in temperature uniformly to the next point, or Ar 1... After this change takes place, it then gradually lowers to atmospheric temperature. These have been named the decalescent points.
1916 D. K. Bullens Steel & its Heat Treatm. 417 For the majority of heat-treatment work, it is more important to know the location of the decalescent points than that of the recalescent points.
This entry has not yet been fully updated (first published 1972; most recently modified version published online June 2022).
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