Acieration vs Acierate - What's the difference?

Acieration is a related term of acierate.

is (rare) the conversion of iron into steel.

to convert iron into steel, or to coat with a layer of steel by converting only the surface of the iron.

(en noun)

(rare) The conversion of iron into steel.

* 1861 , William Crookes (editor), The Chemical News and Journal of Physical Science , volume 3:

It should not be attempted to convert impure irons into steel for then there is no certainty regarding the stability of the acieration.

(acierat)

To convert iron into steel, or to coat with a layer of steel by converting only the surface of the iron.

The success of an attempt to acierate iron will depend on the amount of nitrogen contained by the iron during carburation.

As an economy measure, the manufacturer decided to use iron rather than steel, but to acierate the surface to limit oxidation.