标准摘要
[中文适用范围]： IEC61788 的这一部分涵盖了一种测试方法，详细说明了在室温下对反应后的 Cu/Nb3Sn 复合超导导线进行的拉伸测试程序。该测试的目的是测量弹性模量，并根据应力与应变曲线确定铜和铜锡成分屈服引起的复合材料的屈服强度。此外，@弹性极限@拉伸强度@和断裂后伸长率可以通过本方法确定@但它们被视为可选量，因为弹性极限和断裂后伸长率的测量量已被报道为根据国际循环测试，存在重大不确定性。本测试程序覆盖的样品应具有裸露的圆形或矩形横截面，面积在0@15 mm2和2@0 mm2之间，铜与非铜的体积比为0@2至1@5，并且不应有绝缘层。 [外文原描述]： IEC 61788-19:2013 covers a test method detailing the tensile test procedures to be carried out on reacted Cu/Nb3Sn composite superconducting wires at room temperature. The object of this test is to measure the modulus of elasticity and to determine the proof strength of the composite due to yielding of the copper and the copper tin components from the stress versus strain curve. Furthermore, the elastic limit, the tensile strength, and the elongation after fracture can be determined by means of the present method, but they are treated as optional quantities because the measured quantities of the elastic limit and the elongation after fracture have been reported to be subject to significant uncertainties according to the international round robin test. The sample covered by this test procedure should have a bare round or rectangular cross-section with an area between 0,15 mm2 and 2,0 mm2 and a copper to non-copper volume ratio of 0,2 to 1,5 and should have no insulation. Key words: supraconductivity, mechanical properties
英文名称Superconductivity - Part 19: Mechanical properties measurement - Room temperature tensile test of reacted Nb3Sn composite superconductors