摘要：

An exemplary die-casting mold core includes a mold body, an intermediate layer and a diamond-like carbon film. The mold body is made of a steel alloy containing carbon, chromium, manganese, silicon, vanadium, and iron. A molar percentage of hydrogen in the diamond-like carbon film is in a range from 2% to 25%. The die-casting mold core has excellent mechanical hardness, good corrosion resistance, good wear resistance, long lifetime and ease of separation.

展开