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为减轻构件重量,提高结构效率,现代工程装备对材料的使用性能要求,尤其对强度要求日益提高。高强度材料的类型和品种也因此而飞速发展。但采用现有金属材料和热处理工艺制度,在提高强度的同时会带来韧性的下降。如何运用材料科学与工程,尤其是金属学理论与热加工、热处理技术的科学技术成就,解决金属材料强度与韧性之间的这种矛盾,大幅度提高现有金属材料的强韧性,已成为金属学研究工作要解决的重
In order to reduce the weight of components and improve the structure efficiency, the requirements of modern engineering equipment on the use of materials performance, in particular, the increasing strength requirements. As a result, the types and varieties of high-strength materials have developed rapidly. However, the use of existing metal materials and heat treatment process system, while improving the strength will bring about a decline in toughness. How to use material science and engineering, especially metal science theory and thermal processing, heat treatment technology achievements in science and technology, to solve this contradiction between the strength and toughness of metal materials, greatly improve the toughness of existing metal materials, has become a metal The weight of research work to be solved