Abstract The normalized S355G10 + N steel was chosen for testing, it is used in a variety of applications including the building of offshore structures, which may require repairs in water environment. The main aim of the work was to check susceptibility to cold cracking for fillet welds – Controlled Thermal Severity (CTS) tests and butt welds – Tekken tests and in the next step evaluation of effectiveness of Temper Bead Welding (TBW) application in wet welding conditions for joints welded by covered electrodes. The TBW effectiveness was experimentally verified as a method that may reduce the susceptibility to cold cracking in water environment. An application of the TBW technique caused the maximum hardness of the heat affected zone to fulfill the criterion of EN ISO 15614-1 standard in level of 380 HV10. It was determined that for S355G10 + N steel the beneficial range of the pitch value between beads is 75%–100%.

中文翻译：

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回火焊道提高S355G10+N钢在水环境中的可焊性

摘要 选用正火 S355G10 + N 钢进行测试，它用于多种应用，包括海上结构的建造，这可能需要在水环境中进行维修。这项工作的主要目的是检查角焊缝对冷裂纹的敏感性——受控热强度 (CTS) 测试和对接焊缝——Tekken 测试，并在下一步评估湿焊条件下回火焊缝 (TBW) 应用的有效性用于覆盖电极焊接的接头。TBW 的有效性被实验验证为一种可以降低水环境中冷裂敏感性的方法。TBW 技术的应用使热影响区的最大硬度达到 EN ISO 15614-1 标准 380 HV10 的标准。