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| 1 | DSC analyses of static and dynamic precipitation of an Al-Mg-Si-Cu aluminum alloy显示文摘In the present investigation, both static and dynamic precipitations of an Al–Mg–Si–Cu aluminum alloy after solid-solution treatment(SST)were comparatively analyzed using differential scanning calorimetry(DSC). Dynamic aging was performed in the SST alloy through equal channel angular pressing(ECAP) at different temperatures of room temperature, 110, 170, 191 and 300 1C. For comparison, static artificial aging was conducted in the SST alloy at 191 1C with two aging times of 4 and 10 h. The DSC analyses reveal that the dynamic precipitation has occurred in the ECAPed samples, while the activation energies associated with the strengthening precipitates in the dynamic samples are considerably higher than the energies in the SST and static aged samples. The higher activation energies are probably attributed to the smaller grains and higher dislocation density developed after ECAP. The results in the present investigation allow the prediction of the type of the dynamic precipitates to influence the strength of the ultrafine grained alloy during ECAP at various temperatures. | Manping Liu Zhenjie Wu Rui Yang Jiangtao Wei Yingda Yu Pal C.Skaret Hans J.Roven | 2015 | Progress in Natural Science:Materials International2015，25，2： | 2 |
| 2 | 等离子弧焊熔敷Ti-6Al-4V合金原位拉伸过程中显微组织及应变响应的电子背散射衍射表征(英文)显示文摘航天级钛合金的新型叠层制造技术(ALM)的优势体现在较低的制造成本等方面,并可替代传统加工成型工艺。由等离子弧焊熔敷叠层制造技术制备Ti-6Al-4V合金的显微组织由定向凝固生长的β柱状晶及在其晶内生长的细小的α片层组织构成。在原位拉伸过程中结合应用高速离线电子背散射衍射表征(Offline EBSD)可快速获取试样显微组织和形变特征之间的关系。揭示出不均匀变形的发生取决于柱状晶界间的应变响应。柱状滑移和基面滑移系统被激活进而导致最后出现形变滑移线,即在某些柱状晶中滑移扩展至整个晶粒;而在另一些晶粒中表现为存在应变梯度和应力集中的地方发生形变失配。形变的扩展习性受制于定向凝固生长的柱状晶生长方向及其之间的界面取向关系。在垂直于柱状晶方向的拉伸试验揭示存在剧烈的变形局域化。基于原位拉伸观测及高速的离线电子背散射衍射表征结果,本文作者提出从微观到宏观形变扩展的控制机制。 | Martin BORLAUG MATHISEN Lars ERIKSEN Yingda YU Ola JENSRUD Jarle HJELEN | 2014 | Transactions of Nonferrous Metals Society of China2014，24，12： | 1 |
| 3 | Hydrothermal synthesis and characterization of KNbO3 nanorods 显示文摘 | Wang Guozhong Sverre Magnus Selbach Yu Yingda | 2009 | Cryst EngComm2009，11，： | 1 |
| 4 | Preparation and characterization of aluminum nitride-titanium nitride composites显示文摘 | Yingda Yu Tor Grande Ragnvald Hoier Mari-Ann Einarsrud | 2004 | Journal of the European Ceramic Society2004，，24： | 1 |
| 5 | Preparation and characterization of aluminum nitride-titanium nitride composites显示文摘 | Yingda Yu Tor Grande Ragnvald Hoier Mari-Ann Einarsrud | 2004 | Journal of the European Ceramic Society2004，，24： | 1 |
| 6 | 拍卖行化身多元艺术空间——嘉德艺术中心显示文摘嘉德艺术中心紧邻紫禁城,作为一座全新的综合文化机构,将北京的古城韵味与现代大都会的蓬勃生机以及多元艺术融为一体.嘉德艺术中心是世界上第一个量身定制的拍卖行总部,在北京的中心创建了一个全新的多元艺术机构类型.建筑提供博物馆硬件质量的展示空间和最先进的艺术品保护设施,同时也是一个灵活丰富的文化空间,与餐馆、酒店、公共交通基础设施结合在一起. | Marcel Holmberg Sun Ke Emily Liang Cecilia Lei Yingda Ahrens Mark Biemans Kim Bjarke Catarina Canas Alicia Casals Michael Cavander Jeffrey Cheng Patrick Conway Dyno Du Nicolaz Frez Brian Fung Daniel Hawkins Xinran Ji Philipp Kramer Emeline Laurencon Yuyang Lin Mavis Liu Wymen Lo Max Ma Rafael Merino John Murphey Marcin Olszowski Kevin Ou Kevin Park Yanyadech Phornphong Aaron Powers Klementina Savickaite Jim Shi Chiara Storino Joseph Tang Yang Tao Elena Yang Quentin Yiu Francis Young Lei Yu Danny Zhang Bruno Zhao Weiwei Zhang Yi Zhu Catarina Canas Brian Fung Paloma Hernaiz Marcel Holmberg Tait Kaplan Jaime Oliver Joseph Tang | 2018 | 设计家2018，，1： | 0 |
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