标准摘要
[中文适用范围]： 本国际标准规定了一种测试方法，详细说明了在室温下对 Ag/Bi-2223 和 Ag/Bi-2212 超导复合线材进行拉伸测试的程序。该测试用于测量弹性模量并确定 0@2% 证明强度。当由于早期失效而无法确定 0@2 % 屈服强度时，表观应变下的应力水平为 0@05 %@ 0@1 %@ 0@15 %@ 0@2 %@ 0@25 % 增量测量到 0@05 %。弹性极限@断裂强度@断裂伸长率和0@2%屈服强度的拟合型值仅作为参考（见A.4@A.5@A.6和A.10）。本测试程序所覆盖的样品应具有圆形或矩形横截面，面积为0@3mm2至2@0mm2（对应于宽度为2@0mm至5@0mm的带状电线，厚度为0@16毫米至0@4毫米）。 [外文原描述]： IEC 61788-18:2013 specifies a test method detailing the tensile test procedures to be carried out on Ag/Bi-2223 and Ag/Bi-2212 superconductive composite wires at room temperature. This test is used to measure the modulus of elasticity and to determine the 0,2 % proof strength. When the 0,2 % proof strength could not be determined due to earlier failure, the stress level at apparent strains of 0,05 %, 0,1 %, 0,15 %, 0,2 %, 0,25 % with increment of 0,05 % is measured. The values for elastic limit, fracture strength, percentage elongation after fracture and the fitted type of 0,2 % proof strength serve only as a reference. The sample covered by this test procedure should have a round or rectangular cross-section with an area of 0,3 mm2 to 2,0 mm2 (corresponding to the tape-shaped wires with width of 2,0 mm to 5,0 mm and thickness of 0,16 mm to 0,4 mm). Key words: superconductivity, mechanical properties measurement
英文名称Superconductivity - Part 18: Mechanical properties measurement - Room temperature tensile test of Ag- and/or Ag alloy-sheathed Bi-2223 and Bi-2212 composite superconductors