| 摘要 |
The present invention relates to an internal-combustion engine cylinder block (10) and a production method therefor. In the internal-combustion engine cylinder block (10), a SiC interlayer (20) and a DLC film (22) are formed on an inner wall of a cylinder bore (12). Expressions (1)-(3) are satisfied when T1 is the film thickness of the SiC interlayer (20) and T2 is the film thickness of the DLC film (22). (1) T1≥0.2 μm. (2) T1<T2. (3) T1+T2≥7 μm. Preferably, 0.2 μm≤T1≤1 μm, and 7 μm≤T1+T2≤13 μm. |
