1.1 本试验方法涵盖超弹性镍钛材料的拉伸试验，特别是测定上平台强度、下平台强度、残余伸长率、抗拉强度和伸长率的方法。 1.2 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。 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 拉伸试验提供了材料在单轴拉伸应力下的强度以及弹性和塑性特性的信息。 5.2 如本试验方法所述，拉伸试验也提供了术语中定义的超弹性信息 F2005 ，在试验温度下。

1.1 This test method covers the tension testing of superelastic nickel-titanium (nitinol) materials, specifically the methods for determination of upper plateau strength, lower plateau strength, residual elongation, tensile strength, and elongation. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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 Tension tests provide information on the strength and the elastic and plastic properties of materials under uniaxial tensile stresses. 5.2 Tension tests, as described in this test method, also provide information on the superelasticity, as defined in Terminology F2005 , of the material at the test temperature.