For most cast irons the carbon exists as（）_精华吧

For most cast irons the carbon exists as（）

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For most cast irons the carbon exists as（）

A.cementite

B.graphite

C.martensitic

D.austenitic

正确答案：graphite

Tag：材料概论时间：2022-01-18 21:17:53

上一篇：The（）steels are hardest, strongest, and yet least ductile of the carbon steels， and wear resistant and capable of holding a sharp cutting edge.
下一篇：（）is also called tensile strength, which is obtained at the plastic　deformation region from the stress-strain diagram.

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