云南高校图书馆联盟文献共享服务平台- 国家自然科学基金(51175428)

国家自然科学基金(51175428): 作品数：12被引量：34H指数：4; 导出分析报告; 相关作者：李宏伟杨合陈姗姗吉喆郑华雷更多>>; 相关机构：西北工业大学更多>>; 相关期刊：《塑性工程学报》《Acta Metallurgica Sinica(English Letters)》《Transactions of Nonferrous Metals Society of China》《稀有金属材料与工程》更多>>; 相关主题：晶体塑性英文DISLOCATION纯钛HCP更多>>; 相关领域：金属学及工艺一般工业技术理学更多>>

不同工艺条件下TA15钛合金的三态组织中两种片层α相的演化(英文)被引量：7: 《稀有金属材料与工程》2015年第3期527-531,共5页吉喆杨合李宏伟; National Natural Science Foundation of China for Key Program(50935007);National Basic Research Program of China(2010CB731701);National Natural Science Foundation of China(51175428);"111"Project(B08040); 为了通过组织设计获得优异的性能,揭示TA15钛合金三态组织中的2种片层α相（次生片层α和转变β基体中细α条）的演化至关重要。采用等温压缩（在950,965和975℃）,结合双重热处理（在压缩温度以下10~40℃进行第1次热处理,然后在810°C...; 关键词：TA15钛合金三态组织片层α相组织演化

金属塑性成形过程中的多尺度建模方法被引量：2: 《材料导报》2014年第21期115-118,共4页张青林陈姗姗李宏伟; 国家自然科学基金(51175428); 金属塑性成形涉及到多尺度问题,进行多尺度建模仿真是研究金属塑性成形成性一体化理论与技术的重要途径。综述了目前国内外重要的多尺度建模方法,着重分析了多尺度层阶建模思路和结合多个多尺度模型实现多尺度同步耦合响应的建模方法。...; 关键词：塑性成形多尺度建模层阶模型同步耦合

Simulated and experimental investigation on discontinuous dynamic recrystallization of a near-α TA15 titanium alloy during isothermal hot compression in βsingle-phase field被引量：5: 《Transactions of Nonferrous Metals Society of China》2014年第6期1819-1829,共11页武川杨合李宏伟; Projects (50935007,51175428) supported by the National Natural Science Foundation of China;Project (2010CB731701) supported by the National Basic Research Program of China;Project (NPU-FFR-JC20100229) supported by the Foundation for Fundamental Research of Northwestern Polytechnical University in China;Project (27-TZ-2010) supported by the Research Fund of the State Key Laboratory of Solidification Processing,China;Project (B08040) supported by the Program of Introducing Talents of Discipline to University,China; A cellular automaton（CA） modeling of discontinuous dynamic recrystallization（DDRX） of a near-α Ti-6Al-2Zr-1Mo-1V（TA15） isothermally compressed in the β single phase field was presented.In the CA model,nucleati...; 关键词：discontinuous dynamic recrystallization cellular automaton dislocation density evolution recrystallization kinetics TA15 titanium alloy

A new quantitative relation between deformation textures and corresponding mechanical properties of FCC metals被引量：1: 《Chinese Science Bulletin》2014年第10期1049-1056,共8页Hongwei Li Shanshan Chen He Yang; supported by the National Natural Science Foundation of China(51175428);the National Basic Research Program of China(2011CB012802);the 111 Project(B08040); Quantitative analysis of deformation-induced textures and texture-induced mechanical properties is an important issue for optimal design and control of plastic forming of metals.Deformation-induced textures were predi...; 关键词：QUANTITATIVE RELATION Deformationtexture MECHANICAL property Crystal PLASTICITY ANISOTROPY

弹粘塑性晶界变形损伤本构模型被引量：6: 《塑性工程学报》2014年第2期13-19,39,共8页陈姗姗李宏伟杨合; 国家自然科学基金资助项目(51175428); 晶界弹粘塑性变形损伤是钛合金超塑性成形和等温时效成形过程中的主要变形机制。文章考虑晶界的粘滞性及由其引起的率敏感性,建立弹粘塑性的晶界变形损伤本构模型,并结合Cohesive晶界单元描述晶界在钛合金低应变速率变形中的响应,实现...; 关键词：晶界滑移率敏感性粘滞性变形损伤

Modeling of static coarsening of two-phase titanium alloy in the α+β two-phase region at different temperature by a cellular automata method被引量：1: 《Chinese Science Bulletin》2013年第24期3023-3032,共10页WU Chuan YANG He LI HongWei; supported by the National Natural Science Foundation of China (50935007, 51175428);the National Basic Research Program of China (2010CB731701);the Foundation for Fundamental Research of Northwestern Polytechnical University in China (NPU-FFR-JC20100229);the Center for Foreign Talent Introduction and Academic Exchange for Advanced Materials and Forming Technology Discipline Project (B08040); A cellular automata (CA) method was employed to model static coarsening controlled by diffusion along grain boundaries at 1173K and through the bulk at 1213 and 1243K for a two-phase titanium alloy. In the CA model, t...; 关键词：两相钛合金元胞自动机静态平均晶粒尺寸两相区动力学常数扩散控制 CA模型

Deformation mechanism of cold ring rolling in view of texture evolution predicted by a newly proposed polycrystal plasticity model被引量：3: 《Transactions of Nonferrous Metals Society of China》2013年第12期3729-3738,共10页李宏伟冯璐杨合; Project (51175428) supported by the National Natural Science Foundation of China;Project (B08040) supported by Program of Introducing Talents of Discipline to Universities ("111"Project),China; An explicit polycrystal plasticity model was proposed to investigate the deformation mechanism of cold ring rolling in view of texture evolution. The model was created by deducing a set of linear incremental controlli...; 关键词：cold ring rolling crystal plasticity texture evolution explicit algorithm

A new method for separating complex touching equiaxed and lamellar alpha phases in microstructure of titanium alloy: 《Transactions of Nonferrous Metals Society of China》2013年第8期2265-2269,共5页吉喆杨合李宏伟樊晓光; Projects(50935007,51175428) supported by the National Natural Science Foundation of China;Project(2010CB731701) supported by the National Basic Research Program of China;Project(B08040) supported by the Program of Introducing Talents of Discipline to Universities,China; A new method for separating complex touching equiaxed and lamellar alpha phases in the optical micrograph of titanium alloy was proposed for quantitative characterization. This new method involves three steps. First, ...; 关键词：titanium alloy microstructural feature separation method

Substructure Evolution of Ti-6Al-2Zr-1Mo-1V Alloy Isothermally Hot Compressed in α+β Two-Phase Region被引量：1: 《Acta Metallurgica Sinica(English Letters)》2013年第5期533-544,共12页Chuan WU He YANG Hongwei LI; supported by the National Basic Research Program of China (No. 2010CB731701);the National Natural Science Foundation of China (Nos. 50935007 and 51175428);Foundation for Fundamental Research of Northwestern Polytechnical University in China (No. NPU-FFR-JC20100229);the 111 Project (No. B08040); Substructure evolution significantly influences the flow behavior of titanium alloys in isothermal hot compression. This paper presents a physical experiment（isothermal hot compression and electron backscatter difrac...; 关键词：Substructure evolution Cellular automaton modeling Dislocation density evolution EBSD technique

Effects of stress state on texture and microstructure in cold drawing-bulging of CP-Ti sheet被引量：3: 《Transactions of Nonferrous Metals Society of China》2013年第1期23-31,共9页李宏伟张下陆陈甲元李金山; Project(2010CB731701) supported by the National Basic Research Program of China;Projects(50805121,51175428) supported by the National Natural Science Foundation of China;Project(50935007) supported by the National Natural Science Foundation of China for Key Program;Project(NPU-FFR-JC20100229) supported by the Foundation for Fundamental Research of Northwestern Polytechnical University in China;Project(2011-P06) supported by the Foundation of the State Key Laboratory of Materials Processing and Die & Mould Technology,Huazhong University of Science and Technology;Project(B08040) supported by Program of Introducing Talents of Discipline to Universities("111"),China; Three different stress states of the combination of tensile（t） stress and compressive（c） stress,t t,t c and t c c,exist in the deformed commercially pure titanium（CP-Ti） sheet during cold drawing-bulging.The tex...; 关键词：titanium alloy TEXTURE twinning MICROSTRUCTURE DRAWING stress state cold rolling drawing-bulging

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