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首页> 外文期刊>International Journal of Microstructure and Materials Properties >Developing PVD zirconium-oxide coatings for use of thixoforming of steel
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Developing PVD zirconium-oxide coatings for use of thixoforming of steel

机译：开发用于钢的触变性的PVD氧化锆涂层

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摘要

The process of semisolid metal forming with permanent moulds combines the advantages of the casting and forging process technologies. The processing of steel results in high loads on the surface of the metallic die, such as thermal, mechanical and tribological stresses. To meet this challenge, ceramic-based Physical Vapour Deposition (PVD) hardcoatings are used for tool protection to guarantee high durability of the tool. The first experiments show that especially the high-temperature tetragonal zirconia phase exhibits high strength and toughness. To propose and to examine the appropriate coatings to extend the surface lifetime of the metallic moulds, zirconia coatings were synthesised using pulsed reactive magnetron sputtering. After deposition, these coatings were analysed by common thin film techniques revealing hardness, Young's modulus and x-ray diffraction measurements. The conclusion was that the examination of t-ZrO_2 showed the extraordinary potential of these thin films for use as coating for thixoforming dies.
机译：采用永久铸型的半固态金属成型工艺结合了铸造和锻造工艺技术的优势。钢的加工会在金属模具的表面产生高负荷，例如热应力，机械应力和摩擦应力。为了应对这一挑战，陶瓷基的物理气相沉积（PVD）硬涂层用于工具保护，以确保工具的高耐久性。最初的实验表明，尤其是高温四方氧化锆相表现出高强度和韧性。为了提出并检查适当的涂层以延长金属模具的表面寿命，使用脉冲反应磁控溅射合成了氧化锆涂层。沉积后，通过常用的薄膜技术对这些涂层进行分析，显示出硬度，杨氏模量和X射线衍射测量值。结论是，对t-ZrO_2的检查表明，这些薄膜可用作触变成型模具的涂层。

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