Test data for fracture toughness on material A533B wm at -40 Celsius

The Network for Evaluating Structural Components (NESC) coordinated extensive materials testing and fracture analyses performed by a group of twenty European organizations. The NESC-IV project addressed the transferability of fracture toughness data from laboratory specimens to applications that assess the integrity of reactor pressure vessels subjected to upset and normal loading transients. The coordinated experimental and analytical program drew from major elements of the biaxial features testing program conducted by the Heavy Section Steel Technology Program at the Oak Ridge National Laboratory. In this context, Fraunhofer IWM Freiburg performed fracture toughness tests in the temperature range -100 to -30ºC on type A533B ferritic steel.

结构部件评估网络（Network for Evaluating Structural Components，缩写NESC）协调了由20家欧洲机构共同实施的大规模材料测试与断裂分析工作。NESC-IV项目聚焦于断裂韧性数据从实验室试样到反应堆压力容器完整性评估场景的迁移适用性，此类压力容器需承受异常与正常载荷瞬态工况。这项协同开展的实验与分析计划，借鉴了橡树岭国家实验室厚截面钢材技术计划（Heavy Section Steel Technology Program）下双轴特性测试计划的核心内容。在此背景下，弗劳恩霍夫弗赖堡材料力学研究所（Fraunhofer IWM Freiburg）针对A533B型铁素体钢开展了-100℃至-30℃温度区间内的断裂韧性测试。