roughness vs corroding

roughness and corroding both are nouns.

Word	Noun	Adjective	Verb	Adverb
roughness	Yes	No	No	No
corroding	Yes	No	No	No

As nouns, corroding is a hypernym of roughness; that is, corroding is a word with a broader meaning than roughness:

roughness: the formation of small pits in a surface as a consequence of corrosion
corroding: erosion by chemical action

Other hypernyms of roughness include corrosion, erosion.

roughness (noun)	corroding (noun)
harsh or severe speech or behavior	erosion by chemical action
a texture of a surface or edge that is not smooth but is irregular and uneven
the quality of being harsh or rough or grating to the senses
an unpolished unrefined quality
the formation of small pits in a surface as a consequence of corrosion
used of the sea during inclement or stormy weather
rowdy behavior