本文關(guān)鍵詞：國(guó)家自然科學(xué)基金重大項(xiàng)目“金屬材料強(qiáng)韌化的多尺度結(jié)構(gòu)設(shè)計(jì)與制備”結(jié)題綜述，由筆耕文化傳播整理發(fā)布。

國(guó)家自然科學(xué)基金重大項(xiàng)目“金屬材料強(qiáng)韌化的多尺度結(jié)構(gòu)設(shè)計(jì)與制備”結(jié)題綜述

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

[1] [2] [3] [4] [5] [6] [7]

Lu Ke1 Zhang Zhefeng1 Lu Lei1 Liu Qingz Tao Nairong1 Qu Shaoxing1 （1 Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Scien

[1]中國(guó)科學(xué)院金屬研究所沈陽(yáng)材料科學(xué)國(guó)家(聯(lián)合)實(shí)驗(yàn)室,沈陽(yáng)110016; [2]重慶大學(xué)材料科學(xué)與工程學(xué)院,重慶400045; [3]浙江大學(xué)航空航天學(xué)院,杭州310027; [4]國(guó)家自然科學(xué)基金委員會(huì)工程與材料科學(xué)部,北京100085

文章摘要：國(guó)家自然科學(xué)基金重大項(xiàng)目“金屬材料強(qiáng)韌化的多尺度結(jié)構(gòu)設(shè)計(jì)與制備”經(jīng)過(guò)4年的研究，，在多尺度金屬結(jié)構(gòu)材料的設(shè)計(jì)、制備、性能、微觀組織結(jié)構(gòu)表征、強(qiáng)韌化機(jī)制和斷裂規(guī)律以及跨尺度計(jì)算模擬方面取得了一系列原創(chuàng)性的成果。該重大項(xiàng)目的實(shí)施和完成，在破解金屬材料強(qiáng)度一塑韌性倒置關(guān)系這一難題上邁出了實(shí)質(zhì)性的步伐。在3種組織結(jié)構(gòu)中，即多尺度、非均勻、多層次耦合結(jié)構(gòu)，均發(fā)現(xiàn)強(qiáng)度一塑性關(guān)系顯著區(qū)別于均勻體系。在取得豐碩學(xué)術(shù)成果的同時(shí)，該重大項(xiàng)目實(shí)施過(guò)程中對(duì)“貫通式”材料科學(xué)研究模式也進(jìn)行了有益的嘗試，有效縮短了解決問(wèn)題的時(shí)間周期，并催生了創(chuàng)新性成果的產(chǎn)生。

Abstr：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.

文章關(guān)鍵詞：

Keyword：:major projects, metallic materials, strengthening and toughening

作者信息：會(huì)員可見(jiàn)

  本文關(guān)鍵詞：國(guó)家自然科學(xué)基金重大項(xiàng)目“金屬材料強(qiáng)韌化的多尺度結(jié)構(gòu)設(shè)計(jì)與制備”結(jié)題綜述，由筆耕文化傳播整理發(fā)布。