Bonding Properties of TiAlCrSiN Coating / WC-8Co Cemented Carbide with Microtextured Surface

IF 0.7 4区 材料科学 Q4 METALLURGY & METALLURGICAL ENGINEERING
Manfeng Gong, guangFa Liu, Meng Li, X. Xia, Lei Wang, Jianfeng Wu, Shanhua Zhang, Fang Mei
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引用次数: 0

Abstract

WC-8Co cemented carbide was prepared by a high-temperature liquid phase sintering in argon at 5-200 Pa. Three microtextured grooves with a spacing of 500, 750, and 1000 μm were prepared on the surface of WC-8Co cemented carbide. TiAlCrSiN multi-element hard coating was deposited on the WC-8Co cemented carbide microtextured surface with multi-arc ion plating technology. The Vickers hardness and fracture toughness of coated and uncoated WC-8Co cemented carbide with or without a microtextured surface were investigated. The effect of different microtextured spacing on the interface bonding strength of the TialCrSin coating was analyzed. The results show that with the reduction of the microtextured spacing, the Vickers hardness of the cemented carbide slightly decreases, and the fracture toughness slightly increases. The microtextured surface can improve the interface bonding strength between the coating and the substrate. The smaller the microtextured spacing, the larger the specific surface area and the higher the surface energy, so the interface bonding strength between the coating and the substrate increases.
带有微纹理表面的 TiAlCrSiN 涂层/WC-8Co 硬质合金的粘接性能
WC-8Co 硬质合金是通过在 5-200 Pa 的氩气中进行高温液相烧结制备的。在 WC-8Co 硬质合金表面制备了三个间距分别为 500、750 和 1000 μm 的微纹理沟槽。采用多弧离子镀技术在 WC-8Co 硬质合金微纹理表面沉积了 TiAlCrSiN 多元素硬质涂层。研究了有无微纹理表面的有涂层和无涂层 WC-8Co 硬质合金的维氏硬度和断裂韧性。分析了不同微纹理间距对 TialCrSin 涂层界面结合强度的影响。结果表明,随着微纹理间距的减小,硬质合金的维氏硬度略有降低,而断裂韧性略有增加。微纹理表面可以提高涂层与基体之间的界面结合强度。微纹理间距越小,比表面积越大,表面能越高,因此涂层与基体之间的界面结合强度就越高。
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来源期刊
Archives of Metallurgy and Materials
Archives of Metallurgy and Materials 工程技术-冶金工程
CiteScore
1.20
自引率
0.00%
发文量
0
审稿时长
4.5 months
期刊介绍: The Archives of Metallurgy and Materials is covered in the following Institute for Scientific Information products: SciSearch (the Science Citation Index - Expanded), Research Alert, Materials Science Citation Index, and Current Contents / Engineering, Computing and Technology. Articles published in the Archives of Metallurgy and Materials are also indexed or abstracted by Cambridge Scientific Abstracts.
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