Uniaxial creep test data for 14 MoV 6 3 material at 530 °C and a stress of 180.78 MPa

The aim of the project was to compare various techniques for the assessment of remaining life for power plant components. The creep tests were designed to provide a series of test pieces with defined creep strains ranging from 0.2 to 5 % for creep damage assessment. In addition, basic rupture data were determined for the steels in the new and service exposed conditions. Several creep laboratories participated in the test programme. At FZ Jülich the materials tested were new and service exposed 1Cr0.5Mo, new 0.5Cr0.5Mo0.25V and new 2.25Cr1Mo steels. The 1Cr0.5Mo service exposed specimens were taken from a pipe that had been in service at 525 oC for 250 000 h at 110 bar, and the 0.5Cr0.5Mo0.25V from a forging after 116 000 h service exposure at 530 °C, 176 bar. The creep data set contains test results determined at 530, 550, 600 and 625 °C and the longest test times were 26000 h for 1Cr0.5Mo service exposed, 14000 h for 1Cr0.5Mo new and 24000 h for new 0.5Cr0.5Mo0.25V.

本项目旨在对比评估电站部件剩余寿命的各类技术方案。本次蠕变试验旨在制备一系列蠕变应变范围为0.2%至5%的试样，用于蠕变损伤评估。此外，还测定了新态与服役态钢材的基本断裂数据。多家蠕变实验室参与了本次试验项目。在德国于利希研究中心（FZ Jülich），本次试验涵盖的材料包括新态及服役后1Cr0.5Mo钢、新态0.5Cr0.5Mo0.25V钢，以及新态2.25Cr1Mo钢。其中，服役后1Cr0.5Mo钢试样取自一根在525℃、110巴工况下服役250000小时的管道；服役后0.5Cr0.5Mo0.25V钢试样则取自在530℃、176巴工况下服役116000小时后的锻件。本蠕变数据集包含在530℃、550℃、600℃及625℃下测得的试验结果，最长试验时长分别为：服役后1Cr0.5Mo钢26000小时、新态1Cr0.5Mo钢14000小时、新态0.5Cr0.5Mo0.25V钢24000小时。