The surfaces of the die, including surfaces inside the extrusion holes, are hardened by gas nitriding or plasma nitriding.
In the second step (step 2), a nitriding gas is fed into the processing container, a plasma of the gas is generated, and the unitary TiN film is subjected to plasma nitriding.
A method for improving the surface characteristics of Cobalt chromium alloys by plasma nitriding.
Plasma nitriding can be performed at sufficiently a low temperature to avoid softening of the 420 steel core.
Said element is manufactured from maraging or precipitation-hardenable stainless steel with a surface hardened by plasma nitriding.
Disclosed is a method for pretreating the inner space of a chamber in plasma nitridation, wherein the inner space of a chamber is pretreated before nitriding an oxide film formed on a substrate in a plasma nitridation process.
A fixed charge layer may be formed by plasma nitridation.
A plasma nitridation is performed on the first dielectric layer.
The invention relates to a method for the plasma-nitriding of precipitation-hardenable stainless steels or stainless maraging steels.
This method, without limitation, includes subjecting a silicon substrate (410) to a first plasma nitridation process to incorporate a nitrogen region (520) therein.