Nitriding is usually confined to the surface of most components and will have a dull, ______ appearance. In more advanced stages, the material will exhibit very hard surface hardness.
Nitriding is usually confined to the surface of most components and will have a dull, ______ appearance. In more advanced stages, the material will exhibit very hard surface hardness.
Nitriding, a surface hardening process that typically involves introducing nitrogen into the surface of a metal, usually results in a gray appearance. This process is often limited to the surface of the components, leading to a characteristic dull gray color. Hence, the correct option is gray.
Nitriding is usually confined to the surface of most components and will have a dull, dark gray appearance.