()is one of the principal alloying elements in stainless steels, and one major constituent in superalloys.


()is one of the principal alloying elements in stainless steels, and one major constituent in superalloys.

A.Chromium

B.Nickle

C.Molybdenum

D.Titanium

正确答案:Nickle


Tag:材料导论 时间:2021-12-31 13:05:11