1.1 该试验方法包括实验室试验，该试验使用定量测量对材料偶的耐磨性进行排名。裸金属、合金、非金属材料、涂层和表面改性材料可通过该试验方法进行评估。 1.2 本试验方法不是为了评估在润滑条件下滑动的材料偶的磨损阻力而设计的，因为使用本试验方法在润滑滑动条件下通常不会发生磨损。 1.3 以国际单位制表示的数值应视为标准。本标准不包括其他计量单位。 1.4 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者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。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ====意义和用途====== 5.1 该试验方法旨在对材料偶对磨损引起的失效模式的抵抗力进行排序，而不仅仅是对滑动表面的表面外观进行分类。 5.2 该试验方法已被证明比试验方法具有更高的重复性 G98 在确定耐擦伤性时。试验方法 G98 可用于耐磨性的初始分级。 5.3 当损坏（磨损）的表面使部件无法使用时，应考虑此测试方法。经验表明，磨损在移动缓慢且间歇性运行的滑动系统中最为普遍。 螺纹部件的磨损和咬合是该测试方法最接近模拟的一个经典示例。 5.4 其他易磨损的例子包括:阀门的密封表面可能因磨损而过度泄漏，以及泵磨损环可能因磨损失效。 5.5 如果设备继续令人满意地运行并逐渐失去尺寸，则不存在磨损，应通过不同的测试方法评估磨损情况。 5.6 该试验方法不应用于定量或最终设计目的，因为许多环境因素会影响使用中材料的磨损性能。 润滑、对准、刚度和几何形状只是影响材料性能的一些因素。事实证明，这种测试方法在筛选更接近实际使用条件的原型测试材料方面很有价值。

1.1 This test method covers a laboratory test that ranks the galling resistance of material couples using a quantitative measure. Bare metals, alloys, nonmetallic materials, coatings, and surface modified materials may be evaluated by this test method. 1.2 This test method is not designed for evaluating the galling resistance of material couples sliding under lubricated conditions, because galling usually will not occur under lubricated sliding conditions using this test method. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 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. 1.5 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 This test method is designed to rank material couples in their resistance to the failure mode caused by galling and not merely to classify the surface appearance of sliding surfaces. 5.2 This test method has been shown to have higher repeatability than Test Method G98 in determining the galling resistance. Test Method G98 can be used for initial ranking of galling resistance. 5.3 This test method should be considered when damaged (galled) surfaces render components non-serviceable. Experience has shown that galling is most prevalent in sliding systems that are slow moving and operate intermittently. The galling and seizure of threaded components is a classic example that this test method most closely simulates. 5.4 Other galling-prone examples include: sealing surfaces of valves that may leak excessively due to galling and pump wear rings that may function ineffectively due to galling. 5.5 If the equipment continues to operate satisfactorily and loses dimension gradually, then galling is not present, and the wear should be evaluated by a different test method. 5.6 This test method should not be used for quantitative or final design purposes, since many environmental factors influence the galling performance of materials in service. Lubrication, alignment, stiffness, and geometry are only some of the factors that can affect how materials perform. This test method has proven valuable in screening materials for prototypical testing that more closely simulates actual service conditions.