钟厉,龙永杰,韩西.刀具表面磁控溅射CrN涂层及其耐磨性能研究[J].表面技术,2018,47(10):151-156.
ZHONG Li,LONG Yong-jie,HAN Xi.Preparation and Wear Resistance Properties of CrN Coating by Magnetron Sputtering on Tool Surface[J].Surface Technology,2018,47(10):151-156
刀具表面磁控溅射CrN涂层及其耐磨性能研究
Preparation and Wear Resistance Properties of CrN Coating by Magnetron Sputtering on Tool Surface
投稿时间:2018-06-06  修订日期:2018-10-20
DOI:10.16490/j.cnki.issn.1001-3660.2018.10.020
中文关键词:  高速钢刀具  磁控溅射  CrN涂层  耐磨性能  微观形貌
英文关键词:high speed steel tool  magnetron sputtering  CrN coating  wear-resisting performance  morphology
基金项目:重庆市基础科学与前沿技术研究(重点)项目(cstc2015jcyjBX0140)
作者单位
钟厉 1.重庆交通大学,重庆 400074 
龙永杰 2.四川交通职业技术学院,成都 611130 
韩西 1.重庆交通大学,重庆 400074 
AuthorInstitution
ZHONG Li 1.Chongqing Jiaotong University, Chongqing 400074, China 
LONG Yong-jie 2.Sichuan Vocational and Technical College of Communications, Chengdu 611130, China 
HAN Xi 1.Chongqing Jiaotong University, Chongqing 400074, China 
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中文摘要:
      目的 提高刀具耐磨性能,延长刀具材料的使用寿命,减小刀具在加工过程中的磨损。方法 采用射频磁控溅射法在高速钢刀具表面沉积CrN涂层,用XRD、FESEM等分析涂层的组织结构与微观形貌,用X射线谱仪(EDS)测量涂层成分含量及其分布,用划痕仪测定膜基结合力,用球-盘磨损仪进行磨损实验。探讨不同摩擦条件下涂层的耐磨性能,探究不同摩擦条件对未镀膜刀具与镀膜刀具摩擦学性能的影响,对比分析摩擦系数、磨痕深度、磨痕宽度随参数变化的规律。结果 磁控溅射制备出结构致密、轮廓清晰、表面平整度趋于光滑的CrN涂层,涂层呈现三角锥形貌,具有明显的CrN(111)择优取向,膜基结合力为31.6 N。磨损试验表明,高载荷条件下(载荷5 N),未镀膜刀具磨损较严重,磨痕颜色较深,磨痕深度与宽度分别为27.6、980.2 μm,摩擦系数为0.498。镀膜刀具磨痕两侧只有轻微的犁沟和较少的磨屑堆积,表面磨痕颜色较浅,磨损轻微,磨痕深度与宽度分别为2.25、570.8 μm,摩擦系数为0.314。结论 在高速钢刀具表面沉积CrN涂层能显著提高刀具的耐磨性能,刀具在磨损试验中磨痕深度、磨痕宽度和摩擦系数均较小。
英文摘要:
      The work aims to improve tool wear resistance, extend tool material service life and reduce tool wear during pro-cessing. RF magnetron sputtering method was used to deposit CrN coating on the surface of high speed steel tool. XRD and FESEM were applied to analyze the structure and morphology of coating. EDS was adopted to measure the composition content and distribution of coating. Scratch tester was used to determine the membrane binding force and ball-disc abrading instrument was applied for wear resistance test. Wear resistance of coatings under different friction conditions was investigated, effect of different friction conditions on tribological properties of uncoated and coated tools was discussed and variation of friction coefficient, grinding depth and grinding width along with parameters was studied. The CrN coating with dense structure, clear outline and flat and smooth surface was prepared by magnetron sputtering and showed a triangular-cone shape, with obvious CrN(111) preferential orientation and 31.6 N membrane binding force. Wear test showed that uncoated tool suffered from severe wear under high load (load 5 N), abrasion mark color was dark, depth and width for abrasion mark were respectively 27.6 μm and 980.2 μm, friction coefficient was 0.498. There were only slight furrows and less debris accumulation on both sides of the tool abrasion marks. The surface abrasion mark was bright, the wear was slight depth and width were respectively 2.25 μm and 570.8 μm and friction coefficient was 0.314. Wear resistance of tool is improved by depositing CrN coating on the surface of high speed steel tool and depth of wear mark, width of wear mark and friction coefficient are small in the wear test.
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