In order to reduce the adhesion tendency of aluminum melt on the die casting mold and extend the service life of the die, multi-arc ion plating technique was used to deposit Ti/TiN/CrN multi-layer coating on the surface of 8418 hot-working mold steel. Corrosion resistance of the steel and the Ti/TiN/CrN coating against Al alloy melt was studied. X-ray diffraction, scanning electron microscopy and energy dispersive spectroscopy were used to study the microstructure, phase constituent and phase composition of the materials. Uniform Ti/TiN/CrN coatings with good bonding interfaces and a total thickness of about 2 urn were obtained. Results showed that Ti/TiN/CrN coating can improve the corrosion resistance of the 8418 hot-working die steel significantly against the aluminum alloy melt.
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机译：为了降低铝熔体对压铸模具的粘附趋势并延长模具的使用寿命，使用多电弧离子电镀技术在8418的表面上沉积Ti / TiN / CrN多层涂层工作模具钢。研究了钢的耐腐蚀性和针对Al合金熔体的Ti / TiN / CrN涂层。 X射线衍射，扫描电子显微镜和能量分散光谱用于研究材料的微观结构，相成分和相组成。获得具有良好粘接界面的均匀Ti / TiN / CrN涂层和约2瓮的总厚度。结果表明，Ti / TiN / CrN涂层可以提高8418热工作模具钢的耐腐蚀性，抵抗铝合金熔体。
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