1.1 本试验方法涵盖了测定磷酸钙涂层、多孔和无孔金属涂层的剪切和弯曲疲劳性能以及测定喷涂磷酸钙的金属涂层的弯曲疲劳性能的程序。本试验方法是基于等离子喷涂钛和等离子喷涂羟基磷灰石涂层建立的。尚未确定该试验方法对其他涂层的有效性。在剪切疲劳模式下，本试验方法评估了金属基材上涂层的粘合和内聚性能。在弯曲疲劳模式下，该测试方法评估涂层的附着力以及涂层可能对基材的影响。这些方法仅限于在环境温度下的空气中进行测试。 这些试验方法不适用于部件或装置的疲劳试验；然而，首选最接近实际负载配置的测试方法。 1.2 以国际单位制或英寸-磅单位表示的数值应单独视为标准值。每个系统中规定的值可能不是精确的等效值；因此，每个系统应相互独立使用。将两个系统的值合并可能会导致不符合标准。 1.3 本标准并非旨在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、健康和环境实践，并确定监管限制的适用性。 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 剪切和弯曲疲劳试验用于确定材料、几何形状、表面条件、应力等的变化对承受直接应力长达10年的涂层金属材料的疲劳抗力的影响 7. 周期。这些试验可作为选择在重复应力条件下使用的涂层材料的相对指南。 5.2 为了使这些基本疲劳数据具有可比性、可再现性，并且可以在实验室之间相互关联，必须建立统一的疲劳实践。 5.3 疲劳试验结果可用于基本材料性能设计。不应使用这些测试方法测试实际部件。

1.1 This test method covers the procedure for determining the shear and bending fatigue performance of calcium phosphate coatings and of porous and nonporous metallic coatings and for determining the bending fatigue performance of metallic coatings over sprayed with calcium phosphate. This test method has been established based on plasma-sprayed titanium and plasma-sprayed hydroxylapatite coatings. The efficacy of this test method for other coatings has not been established. In the shear fatigue mode, this test method evaluates the adhesive and cohesive properties of the coating on a metallic substrate. In the bending fatigue mode, this test method evaluates both the adhesion of the coating as well as the effects that the coating may have on the substrate material. These methods are limited to testing in air at ambient temperature. These test methods are not intended for application in fatigue tests of components or devices; however, the test method which most closely replicates the actual loading configuration is preferred. 1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. 1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 The shear and bending fatigue tests are used to determine the effect of variations in material, geometry, surface condition, stress, and so forth, on the fatigue resistance of coated metallic materials subjected to direct stress for up to 10 7 cycles. These tests may be used as a relative guide to the selection of coated materials for service under condition of repeated stress. 5.2 In order that such basic fatigue data be comparable, reproducible, and can be correlated among laboratories, it is essential that uniform fatigue practices be established. 5.3 The results of the fatigue test may be used for basic material property design. Actual components should not be tested using these test methods.