摘要
采用非平衡磁控溅射离子镀在GDL-4型合金工具钢表面进行TiAlN涂层,并与M2钢表面TiAlN涂层做对比性分析。用压入法测量涂层的结合强度、用显微硬度计以不同的载荷测量涂层硬度。结果表明,该钢经PVDTiAlN涂层后,结合强度达到HF1,膜厚为4.5-5.0μm,显微硬度为HV2360-2576,与M2钢为基体相比,在相同条件下进行表面TiAlN涂层,其结合强度、膜厚、显微硬度测量,结果都很相近。以廉价合金为主加元素的GDL-4型合金工具钢,可以替代价格昂贵的传统高速钢以降低工具钢成本。并采用维氏压头测量断裂韧性KIC和通过扫描电子显微镜观察压痕形貌来评定涂层的韧性。
GDL- 4 was used to take the place of the high - cost traditional high - speed steel with cheap Si ＇Mn as the main additive elements. A few W、Mo、V and a certain quantity of A1 were also added into GDL- 4. TiAIN was coated on GDL - 4 by the Unbalance Magnetron Sputtering Ion Plating. And the coating was compared and analyzed with that on M2 steel. The bonding strength was measured by pressing measure and the coating hardness is also measured by micro- hardness instrument under different load. The result shows that the bonding strength of GDL-4 has reached HF1, the film thick has reached 4.5- 5.0μm, and the micro-hardness has reached HV2360- 2576 after the PVDTiAIN coating. The experimental figures of M2 steel are pretty similar to that of GDL-4 under the same process- ing conditions. The fracture toughness KIC of TiAIN coating has been measured by Weishi indenter indentor and the appearance of impress has also been observed by SEM.
出处
《贵州工业大学学报（自然科学版）》
CAS
2006年第6期13-17,共5页
Journal of Guizhou University of Technology(Natural Science Edition)
关键词
TiAIN涂层
结合强度
磁控溅射
膜厚
显微硬度
断裂韧性KIC
TiAIN coating
bonding strength
magnetron sputtering
film thick
micro - hardness
fracture toughness KIC
