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Chemical Bond Calculations of Crystal Growth of KDP and ADP Xue Dongfeng1,Xu Dongli1 (1.State Key Laboratory of Fine Chemicals, Department of Materials Science and Chemical Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116012, China) Abstract:A novel method was proposed to calculate the crystal morphology (or growth habit) on the basis of chemical bond......
crystal Cu by an X-ray diffraction butterfly pattern method[J]. Materials Characterization, 2004, 53(5): 395-402. [18] KANNARPADY G K, TRIGWELL S, BHATTACHARYYA A, PULNEV S, VIAHHI I. Effect of an overheating temperature on cyclic isothermal stress-induced transformations in single crystal Cu-13.3Al-4.0Ni (wt%) shape memory alloys[J]. Mechanics of Materials, 2006, 38(5/6): 493-509. [19] IGNACOV S......
and be used to calculate the volume of void in the simulation of the effect of crystallographic orientation on void growth by using crystal plasticity finite element method compared with integral method... properties of materials with voids. Key words: crystal plasticity; finite element method; void; mechanical properties; crystallographic orientation ......
.ysxb.1004.0609.2021-36540 CHEN Shou-dong, LU Ri-huan, SUN Jian, et al. Crystal plasticity finite element simulations for plastic anisotropy in single layer and oligo-crystal copper under foil rolling[J]. The Chinese Journal...变形主要受其层状晶粒结构影响. 表2 晶体塑性有限元模拟参数 Table 2 Material parameters used in CP-FEM simulations 图2 轧制单层和少层晶铜箔的晶体塑性有限元模型及极薄带轧制示意图 Fig. 2 Crystal plasticity finite element models......
Dendritic and spherical crystal reinforced metallic glass matrix compositesJun-wei Qiao1,2,Yong Zhang3,Hui-jun Yang1,2,Sheng-bo Sang41. Laboratory of Applied Physics and Mechanics of Advanced.... The largest fracture strain of Zr60.0Ti14.7Nb5.3Cu5.6Ni4.4Be10.0(at%) composites with the withdrawal velocity of 1.0 mm/s was found to be 16.7%. The mechanism of plasticity improvement is mainly attributed......
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crystal)单晶颗粒组成的两相复合材料. 基于非均质微极介质塑性理论, 构建γ-TiAl基合金整体有效微极柔度张量, 将传统塑性割线模量法推广到微极材料, 建立分析和预测γ-TiAl基合金的塑性行为尺度效应的细观力学模型. 结果表明: γ-TiAl基合金的微结构尺度对其宏观塑性硬化行为存在显著的影响; 近片层组织γ-TiAl基合金中PST晶体颗粒的尺寸越小, 合金中硬相夹杂PST颗粒的体积分数越大... of macroscopic plastic behavior for a nearly lamellar γ-TiAl based alloy, which consisted of PST(polysynthetically twinned crystal) grains with random orientation. The γ-TiAl based alloy was considered as a two......
J. Cent. South Univ. (2018) 25: 1-8 DOI: https://doi.org/10.1007/s11771-018-3711-1 Effects of directional solidification parameters and crystal selector on microstructure of single crystal of Ni... and Springer-Verlag GmbH Germany,part of Springer Nature 2018 Abstract: The single crystal of nickel-base super alloy is widely used for making turbine blades. The microstructure of the alloy, especially......
CRYSTAL DEFECTS IN PLASMA NITRIDED LAYER CATALYZED BY RARE EARTH F.S.Chen1,D.K.Liang1,L.M.Xiao1,Y.X.Liu1 (1.School of Materials Science and Technology,Shandong University,Jinan 250061,China... and the plane defects in boundary are increased by rare-earthelements. The addition of rare-earth element increases the bombardment effect andthe number of crystal defects such as vacancies, dislocation loops......
单晶纯钛的细观力学性能模拟 葛鹏1,汪洋2,黄中伟3,黄文3 (1.西北有色金属研究院,陕西,西安,710016;2.中国科技大学,安徽,合肥,230027;3.深圳大学,广东,深圳,518060) 摘要:采用晶体塑性理论和有限元方法,建立描述密排六方结构(hcp)金属力学行为的细观数值本构模型,利用该模型对单晶纯钛在高温下的单向拉伸试验进行模拟.模拟结果和实验现象相吻合,显示了该模型的有效性.计算结果同时揭示了单晶纯钛变形过程中各个滑移系所起的作用,并对滑移系的运动和晶格转动等细观演化规律进行了分析. 关键词:晶体塑性; 细观本构模型; 钛; crystal plasticity; meso-scale constitutive model; titanium; [全文内容正在添加中] ......
