课题提供了海洋平台用钢在服役过程中的主要失效规律，开发出高强韧特厚钢板、大线能量焊接厚钢板的焊接技术与加工成型技术，形成了检验标准规范。主要数据内容包括金相显微镜、扫描电子显微镜和背散射电子衍射仪等显微组织照片、拉伸和冲击、疲劳等力学性能数据，数据类型包括图像、表格、pdf。数据量大约50余条，共享方式为审批共享，延期2年公开。

The subject provides the main failure law of steel for offshore platform in service, develops the welding technology and processing and forming technology of high strength and tough extra thick steel plate and thick steel plate for large-heat input welding, and forms the inspection standard specification. The dataset mainly includes microstructure photos of metallographic microscope, scanning electron microscope and backscattering electron diffractometer, tensile and impact, fatigue properties. The data types include image, spreadsheets, pdf with about 50 items. The dataset is shared by approval and will be made public after 2 years.