国家自然科学基金重大项目“金属材料强韧化的多尺度结构设计与制备”结题综述  

SUMMARY AND OUTLOOK OF THE MAJOR PROJECT "DESIGN AND PREPARATION OF MULTI-SCALE STRUCTURE FOR STRENGTHENING AND TOUGHENING OF METALLIC MATERIALS"

作　　者：卢柯[1] 张哲峰[1] 卢磊[1] 刘庆[2] 陶乃镕[1] 曲绍兴[3] 车成卫[4] 

机构地区：[1]中国科学院金属研究所沈阳材料科学国家(联合)实验室,沈阳110016 [2]重庆大学材料科学与工程学院,重庆400045 [3]浙江大学航空航天学院,杭州310027 [4]国家自然科学基金委员会工程与材料科学部,北京100085

出　　处：《中国科学基金》2013年第2期70-74,共5页Bulletin of National Natural Science Foundation of China

摘　　要：国家自然科学基金重大项目"金属材料强韧化的多尺度结构设计与制备"经过4年的研究,在多尺度金属结构材料的设计、制备、性能、微观组织结构表征、强韧化机制和断裂规律以及跨尺度计算模拟方面取得了一系列原创性的成果。该重大项目的实施和完成,在破解金属材料强度=塑韧性倒置关系这一难题上迈出了实质性的步伐。在3种组织结构中,即多尺度、非均匀、多层次耦合结构,均发现强度-塑性关系显著区别于均匀体系。在取得丰硕学术成果的同时,该重大项目实施过程中对"贯通式"材料科学研究模式也进行了有益的尝试,有效缩短了解决问题的时间周期,并催生了创新性成果的产生。After four years of research, a major project of National Natural Science Foundation of China en- titled ＂Design and Preparation of Multi-scale Structure for Strengthening and Toughening of Metallic Mate- rials＂, has released the final report about the design, preparation, mechanical properties, microstructure characterization, strengthening and toughening, fracture and modeling of multi-scale structure of metallic materials. The accomplishments of the major project make a solid progress towards the solution of the Strength vs Plasticity/stiffness Dilemma. It is found in the all three pre-selected structures, i. e. , scale, heterogeneous and multiple hierarchy, that the strength-plasticity relationship is notably different from that of homogeneous materials. Besides these rich scientific findings, the major project also tries to demonstrate the efficiency of their All-Through Mode for the administration of materials research projects, which can shorten the research period and catalyze the emergence of original ideas.

关 键 词：重大项目 金属材料 强韧化 

分 类 号：TG113[金属学及工艺—物理冶金]