ISO 17641-2:2015规定了进行自我约束热裂纹试验所需的试样、试样尺寸和程序。 描述了以下测试: -T型接头焊缝开裂试验； -焊缝金属拉伸试验； -纵向弯曲试验。 这些试验旨在提供有关焊缝金属热裂纹敏感性的信息。这些试验不适合评估母材。 ISO 17641-2:2015主要适用于全奥氏体不锈钢、镍、镍基和镍铜焊接金属。ISO 17641的这一部分也可用于其他焊接金属。 ISO 17641-2:2015仅描述了如何进行测试和报告结果。它没有给出任何验收标准。

ISO 17641-2:2015 specifies the required specimens, the test piece dimensions, and the procedures to be followed to carry out self-restraint hot cracking tests. The following tests are described: - T-joint weld cracking test; - weld metal tensile test; - longitudinal bend test. The tests are designed to provide information about the hot cracking sensitivity of weld metals. The tests are not suitable for the assessment of parent materials. ISO 17641-2:2015 applies primarily to fully austenitic stainless steels, nickel, nickel base, and nickel copper weld metals. This part of ISO 17641 can also be used for other weld metals. ISO 17641-2:2015 describes only how to carry out the tests and report the results. It does not give any acceptance criteria.