-
Numerical simulation for dendrite growth in directional solidification using LBM-CA (cellular automata) coupled method
AI导读
来源: 《JOURNAL OF MATERIALS SCIENCE TECHNOLOG2020年第14期》——Wonjoo Lee Yuhyeong Jeong Jae-Wook Lee Howon Lee Seong-hoon Kang Young-Min Kim Jonghun Yoon
with respect to various solidification conditions such as temperature gradient and growth rate, but also predict the primary dendrite arm spacing(PDAS) and the secondary dendrite arm spacing(SDAS......
-
Normal and abnormal grain growth in magnesium:Experimental observations and simulations
AI导读
来源: 《JOURNAL OF MATERIALS SCIENCE TECHNOLOG2020年第15期》——Risheng Pei Sandra Korte-Kerzel Talal Al-Samman
that a dislocation density gradient after recrystallization grants(0001) <11-20>grains a size advantage during early stages of growth.The type of growth will be,however,determined by the mobility...-and re sidual dislocation-density-gradient-driven grain growth simulations using a formerly developed level-set approach.The simulation outcome suggests that application of such a modeling approach......
-
Effects of circular beam oscillation technique on formability and solidification behaviour of selective laser melted Inconel 718:From single tracks to cuboid samples
AI导读
来源: 《JOURNAL OF MATERIALS SCIENCE TECHNOLOG2020年第16期》——Huihui Yang Guanyi Jing Piao Gao Zemin Wang Xiangyou Li
and microstructure of the SLMed samples with oscillation is closely related to cooling rate,thermal gradient and stirring effect during the solidification process. Therefore, circular beam oscillation......
-
First-principles study of the electronic structure of a superstoichiometric rare earth dihydride Gd H2.25
AI导读
来源: 《JOURNAL OF RARE EARTHS2016年第1期》——Z.Ayat A.Boukraa B.Daoudi
augmented plane wave method(FP-LAPW) approach within the density functional theory(DFT) in the generalized gradient approximation(GGA) and local density approximation(LDA) as implemented in the WIEN2 k......
-
复合材料损伤阻抗和损伤容限的性能表征
AI导读
来源: 《复合材料学报2004年第5期》——王进 叶林 沈真 杨胜春 张子龙
痕力Fmax来表征损伤阻抗性能,用凹坑深度-压缩破坏应变曲线门槛值CAIT(Compression failure strain After Impact Threshold)来表征损伤容限性能,同时给出了测试方法的建议.
关键词:复合材料; 性能表征; 损伤容限; 损伤阻抗; Fmax; CAIT;
[全文内容正在添加中]
......
-
Dendritic and spherical crystal reinforced metallic glass matrix composites
AI导读
来源: 《International Journal of Minerals Metallurgy and Materials2013年第4期》——Jun-wei Qiao Yong Zhang Hui-jun Yang Sheng-bo Sang
. 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......
-
Effect of the width on AZ31 sheet rolling
AI导读
来源: 《Acta Metallurgica Sinica2010年第2期》——Qingwei DAI .),Dingfei ZHANG .),Wei LAN ),Lin FANG .) and Junping ZHANG .) ) College of Materials Science and Engineering,Chongqing University,Chongqing,,China ) National Engineering Research Center for Magnesium Alloys,Chongqing University,Chongqing ,China ) Chongqing University of Science and Technology,Chongqing ,China
shearing deformation at the edge brings about cracks.The strain rate changes periodically with different X.With initial width increases,the recrystallized grain size decreases.The finite element......
-
Microstructural evolution and change in hardness during creep of NF709 austenitic stainless steel
AI导读
来源: 《Acta Metallurgica Sinica2011年第3期》——Yan ZHAO ),Jie ZHAO ) and Xiaona LI ) ) School of Material Science and Engineering,Dalian University of Technology,Dalian ,China ) Key Laboratory of Materials Modification by Laser,Ion and Electron Beams of Ministry of Education,Dalian University of Technology,Dalian ,China
differences.The G phase dispersedly precipitated in intragranular and interacted with dislocations during creep process,indicating strain hardening.关键词:......
-
Hot deformation behavior of EA4T steel
AI导读
来源: 《Acta Metallurgica Sinica2012年第5期》——Gang XU ) , Lina WANG ) , Shiqi LI ) and Le WANG ) ) School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing , China ) School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing , China
deformation behavior of EA4T steel was investigated at temperatures ranging from 950 to 1150 C and strain rates from 0.1 to 20 s 1 on Gleeble-1500 thermo-simulation machine. The work hardening rate versus......
-
In-situ Observation of Crack Growth and Domain Switching Around Vickers Indentation on BaTiO3 Single Crystal Under Sustained Electric Field
AI导读
来源: 《Acta Metallurgica Sinica2013年第6期》——Bing JIANG Meicheng LI
that the incompatible strain induced by domain switching in the residual stress zone around the indentation is the driving force of the anisotropic crack propagation.The crack propagation results......