1.1本试验方法包括测定硬（维氏硬度HV=5 GPa或更高）、薄(≤环境温度下金属和陶瓷基材上的陶瓷涂层。这些陶瓷涂层通常用于耐磨损、抗氧化和功能（光学、磁性、电子、生物）性能改善。 1.2在试验方法中，以恒定速度和规定的法向力（恒定或逐渐增加）在规定距离内，在涂层试样的平面上绘制规定几何形状的金刚石触针（罗克韦尔C，夹角为120°且球形尖端半径为200μm的锥形金刚石压头）。通过显微镜评估划痕轨迹沿线的损伤，将其视为作用力的函数。特定程度的渐进损伤与正常触针力的增加有关。 在涂层中产生特定类型/级别损伤的力水平被定义为临界划痕载荷。该测试方法还描述了使用切向力和声发射信号作为二次测试数据，以识别不同的涂层损伤程度。 1.3 涂层适用性 -本试验方法适用于各种硬质陶瓷涂层成分:陶瓷和金属基材上的碳化物、氮化物、氧化物、金刚石和类金刚石碳。使用半径为200μm的金刚石触针定义的试验方法通常用于0.1至30μm范围内的涂层厚度。试样通常具有用于测试的平面，但也可以使用适当的夹具测试圆柱体几何形状。 1.4 主要限制 : 1.4.1试验方法不测量涂层和基材之间粘结的基本粘附强度。 相反，该测试方法给出了涂层-基材系统的实际（外在）粘附强度的工程测量，这取决于测试参数（触针特性和几何形状、加载速率、位移速率等）和涂层/基材特性（硬度、断裂强度、弹性模量、损伤机制、微观结构、缺陷数量、表面粗糙度等）的复杂相互作用。 1.4.2定义的试验方法不直接适用于以韧性、塑性方式失效的金属或聚合物涂层，因为塑性变形机制与在硬质陶瓷涂层中观察到的脆性损伤模式和特征非常不同。该试验方法可适用于在脆性模式下失效的硬质金属涂层，并适当改变试验参数和损伤分析程序和标准。 1.4.3对于非常薄的（<0.5 mm）不建议使用罗克韦尔C金刚石触针和特定法向力和速率参数定义的测试方法。 1μm）或更厚的涂层（>30μm）。此类涂层可能需要不同的触针几何形状、加载速率和施加的法向力范围，以获得可用、准确、可重复的结果。 1.4.4以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。以国际单位制（力为牛顿（N），位移为毫米（mm））表示的测试数据值应视为标准值，并符合IEEE/ASTM SI 10。 1.4.5本标准无意解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。

1.1 This test method covers the determination of the practical adhesion strength and mechanical failure modes of hard (Vickers Hardness HV = 5 GPa or higher), thin (≤30 μm) ceramic coatings on metal and ceramic substrates at ambient temperatures. These ceramic coatings are commonly used for wear/abrasion resistance, oxidation protection, and functional (optical, magnetic, electronic, biological) performance improvement. 1.2 In the test method, a diamond stylus of defined geometry (Rockwell C, a conical diamond indenter with an included angle of 120° and a spherical tip radius of 200 μm) is drawn across the flat surface of a coated test specimen at a constant speed and a defined normal force (constant or progressively increasing) for a defined distance. The damage along the scratch track is microscopically assessed as a function of the applied force. Specific levels of progressive damage are associated with increasing normal stylus forces. The force level(s) which produce a specific type/level of damage in the coating are defined as a critical scratch load(s). The test method also describes the use of tangential force and acoustic emission signals as secondary test data to identify different coating damage levels. 1.3 Applicability to Coatings —This test method is applicable to a wide range of hard ceramic coating compositions: carbides, nitrides, oxides, diamond, and diamond-like carbon on ceramic and metal substrates. The test method, as defined with the 200 μm radius diamond stylus, is commonly used for coating thicknesses in the range of 0.1 to 30 μm. Test specimens generally have a planar surface for testing, but cylinder geometries can also be tested with an appropriate fixture. 1.4 Principal Limitations : 1.4.1 The test method does not measure the fundamental adhesion strength of the bond between the coating and the substrate. Rather, the test method gives an engineering measurement of the practical (extrinsic) adhesion strength of a coating-substrate system, which depends on the complex interaction of the test parameters (stylus properties and geometry, loading rate, displacement rate, and so forth) and the coating/substrate properties (hardness, fracture strength, modulus of elasticity, damage mechanisms, microstructure, flaw population, surface roughness, and so forth). 1.4.2 The defined test method is not directly applicable to metal or polymeric coatings which fail in a ductile, plastic manner, because plastic deformation mechanisms are very different than the brittle damage modes and features observed in hard ceramic coatings. The test method may be applicable to hard metal coatings which fail in a brittle mode with appropriate changes in test parameters and damage analysis procedures and criteria. 1.4.3 The test method, as defined with the Rockwell C diamond stylus and specific normal force and rate parameters, is not recommended for very thin (<0.1 μm) or thicker coatings (>30 μm). Such coatings may require different stylus geometries, loading rates, and ranges of applied normal force for usable, accurate, repeatable results. 1.4.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. Test data values in SI units (newtons (N) for force and millimetres (mm) for displacement) are to be considered as standard and are in accordance with IEEE/ASTM SI 10. 1.4.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.