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ULCB钢是继国家“863”计划之后的国家重点基础研究规划“973”项目。ULCB由于采用了超低碳的先进合金设计思想,配合以先进的控轧、控冷工艺,获得了理想的强韧性及焊接性能,因此,被国际上公认为是面向21世纪的新一代钢铁材料。近年来,世界各国已经将研究的重点转移到ULCB钢的研究上来。本文在查阅大量文献的基础上,系统概述了ULCB钢的产生及发展,并指出焊接材料的研究与开发在高强钢的发展中占有举足轻重的地位,新型无预热ULCB焊接材料的开发为焊接学科的发展提供了一个令人鼓舞的新方向。
ULCB steel is the “973” project of national key basic research plan after the national “863” plan. ULCB has adopted the advanced design concept of ultra-low carbon alloy, with the advanced control of rolling, controlled cooling process, access to the ideal strength and weldability, therefore, is internationally recognized as the 21st century, a new generation of steel materials . In recent years, all countries in the world have shifted their research focus to the research of ULCB steel. Based on a large amount of literatures, this article systematically summarizes the development and production of ULCB steel, and points out that the research and development of welding materials plays a decisive role in the development of high strength steel. The development of new ULCB welding materials without welding The development provided an encouraging new direction.