| 摘要 |
<p>An exhaust pipe (2) for an internal combustion engine (1) includes a metal tube (5) enclosing a passage (6) through which an exhaust gas from the internal combustion engine (1) passes, and a ceramic film (10) covering the metal tube (5) from the outside, the ceramic film (10) containing no more than about 0.5 mass% of a metallic element which is dominantly present in a surface of the metal tube (5). The ceramic film (10) is an SiON film containing about 30 mass% or less of O and about 10 mass% or more of N.</p> |
