GRAIN_REFINEMENT

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Influence of Undercooling on the Solidification Behaviour and Microstructure of Non-equilibrium Solidification of Cu-based Alloys
《Journal of Wuhan University of Technology(Materials Science)》2025年第2期610-618,共9页LI Hejun AN Hongen Willey Liew Yun Hsien Ismal Saad Bih Lii Chuab Nancy Julius Siambun CAO Shichao WANG Hongfu YAO Wei 
Funded by the Basic Research Project in Shanxi Province(No.202103021224183);the 2024 Science and Technology PlanProject of Jiaozuo City,Henan Province(No.2024410001)。
The evolution of the microstructure and morphology of Cu55Ni45 and Cu60Ni40 alloys under varying degrees of undercooling was investigated through molten glass purification and cyclic superheating technology.By increas...
关键词:UNDERCOOLING MICROSTRUCTURE grain refinement solidification rate 
Effects of low frequency electromagnetic casting on solidification macrostructure of GH4742superalloy
《China Foundry》2025年第2期195-204,共10页Liang Zhang Lei Wang Yang Liu Xiu Song Teng Yu Ran Duan 
financially supported by the Major Projects in Aviation Engines and Gas Turbines (Grant No.2019-VI-0020-0136);the National Key Research and Development Program of China (Grant Nos.2022YFB3705101&2022YFB3705102);the National Natural Science Foundation of China (Grant No.U1708253);the Fundamental Research Funds for the Central Universities,China (Grant No.N2302005)。
The low frequency electromagnetic casting(LFEC)was used to prevent hot cracking during the solidification process of GH4742 superalloy ingot.The effects of LFEC on the solidification macrostructure of the ingot were i...
关键词:low frequency electromagnetic casting SUPERALLOY SOLIDIFICATION hot cracking grain refinement 
Influence of processing history on microstructure,mechanical properties,and electrical conductivity of Cu−0.7Mg alloy
《Transactions of Nonferrous Metals Society of China》2025年第4期1197-1211,共15页Alireza KALHOR Kinga RODAK Marek TKOCZ Bartosz CHMIELA Ivo SCHINDLER Łukasz POLOCZEK Krzysztof RADWAŃSKI Hamed MIRZADEH Marian KAMPIK 
financially supported by Silesian University of Technology,Poland(No.11/030/BK_23/1127);V?B–Technical University of Ostrava Czech Republic(No.CZ.02.1.01/0.0/0.0/17_049/0008399)。
The effects of forward extrusion as well as extrusion combined with reversible torsion(KoBo extrusion),followed by additional deformation via the MaxStrain module of the Gleeble thermomechanical simulator,on the micro...
关键词:KoBo extrusion MaxStrain processing equivalent strain calculation grain refinement tensile properties electrical conductivity 
Refining mechanism of tin–bismuth alloy solidified structure upon applying direct current attached mold
《Journal of Iron and Steel Research International》2025年第3期619-628,共10页Si-yao Liu Ye Zhou Xin-cheng Miao Qing-he Xiao Rui Guan Xin-gang Ai Sheng-li Li 
the National Natural Science Foundation of China(51974155);the Outstanding Young Scientific and Technological Talents Project of University of Science and Technology Liaoning(2023YQ07);the University of Science and Technology Liaoning Young Foundation(2018QN06);National Natural Science Foundation of China(51774178);the National Key Research and Development Program(2021YFB3702005);the Central Government Guides Local Science and Technology Development Fund Projects(2023JH6/100100046);the Liaoning Provincial Department of Education Basic Research Projects for Universities(JYTQN2023242).
Herein,the effect of direct current(DC)attached the mold on refining the microstructure and alleviating the central segregation of a tin–bismuth(Sn–10 wt.%Bi)alloy ingot during the solidification process has been in...
关键词:Metal solidification Direct current Forced melt flow Grain refinement Segregation alleviation 
Mechanisms of grain refinement and improved kinetic property of nanocrystalline Mg-Ni-La hydrogen storage alloys prepared by nanocrystallization of amorphous
《Journal of Magnesium and Alloys》2025年第3期1364-1381,共18页Y.M.Li Z.C.Liu X.Dong Y.P.Ji C.J.Shi G.F.Zhang Y.Z.Li J.Kennedy F.Yang 
supported by National Natural Science Foundation of China(51761034,51961032,51962028 and 52261041);Innovation Foundation of Inner Mongolia University of Science and Technology(2019YQL03);Major Science and Technology Project of Inner Mongolia(2021ZD0029);Program for Young Talents of Science and Technology in Universities of Inner Mongolia Autonomous Region(NJYT23005,NJYT23007);Program for Innovative Research Team in Universities of Inner Mongolia Autonomous Region(NMGIRT2401).
Mg_(x)(Ni_(0.8)La_(0.2))_(100-x),where x=60,70,80,exhibiting a nanocrystalline microstructure,were prepared through the crystallization of amorphous alloys.The investigation encompassed the phase constitution,grain si...
关键词:Hydrogen storage Mg based alloys Crystallization NANOCRYSTALLINE Amorphous alloy 
Effect of different N and Si contents on microstructures and properties of HRB400e steel containing vanadium
《Journal of Iron and Steel Research International》2025年第2期452-465,共14页Qian Xu Dong-ping Zhan Wei-li Xu Fu-hua Fan Hong-tao Li Huai-zhu Li Shang-kun Wang 
support from the Open Competition Scientific and Technological Research Projects of Heilongjiang Province(2022ZXJ03A02);Key Research and Development Project of School-local Cooperation in Lvliang City(No.2023XDHZ05).
By increasing the nitrogen content in vanadium-containing steel,the mechanical properties of the steel can be effectively improved.In order to better utilize the strengthening effect of N in vanadium-containing steel ...
关键词:Vanadium-nitrogen microalloying Ultra-high strength rebar Precipitation strengthening Grain refinement strengthening 
Experimental study on microstructural and corrosion behaviors of friction stir processed steel with CoCrFeCuTi HEA reinforcement and effect of annealing
《Science China(Technological Sciences)》2025年第1期229-246,共18页S.Aravind KRISHNA N.RADHIKA Alokesh PRAMANIK N.JEYAPRAKASH 
The ability to perform against extreme corrosion environments in stainless steel depreciates under challenging conditions in industrial applications.This can be resolved by employing surface modification techniques to...
关键词:high entropy alloys friction stir processing ANNEALING grain refinement corrosion resistance 
Concurrent toughening and hardening in AgMgNi alloys by internal oxidation
《Rare Metals》2024年第12期6625-6638,共14页Bing-Rui Liu Hai-Cheng Zhu Shao-Hong Liu Li-Min Zhou Hao Cui Man-Men Liu Li Chen Ming Wen Hai-Gang Dong Feng Liu Wei Wang Song Li 
financially supported by the National Natural Science Foundation of China(Nos.51977027 and 51967008);Yunnan Key Research and Development Program(No.202102AB080008);the Scientific and Technological Project of Yunnan Precious Metals Laboratory(Nos.YPML-2022050206 and YPML-2023050250)。
Enhancing the ductility of internally oxidized AgMg alloys has posed a longstanding challenge.A new method to achieve simultaneous hardening and toughening of AgMgNi alloys is presented by means of internal oxidation....
关键词:HARDENING TOUGHENING Internal oxidation AgMgNi alloy Grain refinement 
Effects of a novel refiner Al-3Ti-4.35La combined with Sr on microstructure and mechanical properties of as-cast A356 alloy
《China Foundry》2024年第6期641-650,共10页Mei Xu Wan-wu Ding Li-wen Hu Shi-hao Chen Hai-xia Zhang Hai-cun Yu Wen-jun Zhao 
financially supported by the National Natural Science Foundation of China(Grant No.52161006);an Industrial Support Plan Project of Gansu Provincial Department of Education(2021CYZC-23);the Gansu Key Research and Development Program(21YF5GD183);the Jiayuguan Science and Technology Planning Project(21-10);the China Postdoctoral Science Foundation Project(2019M653896XB)。
It is a practically significant issue to refine and modify industrial Al-Si casting alloy to improve its properties.In the present study,a novel refiner Al-3Ti-4.35La alloy,prepared by a melt-reaction method,was used,...
关键词:A356 alloy Al-3Ti-4.35La SR REFINER grain refinement microstructure mechanical properties 
Al-CeO_(2)-Mg refiner on grain refinement,cast fluidity and mechanical properties of AZ91 alloy
《China Foundry》2024年第6期667-675,共9页Wen-xue Fan Yu Bai Hai Hao Bo Zhang Xing-guo Zhang Kai-xi Jiang 
supported by the National Natural Science Foundation of China(52171030);the National Key Research and Development Program of China(2018YFA0702903).
Grain refinement is a satisfying method to enhance the comprehensive performance of Mg alloys,and using grain refiners to improve the quality of Mg castings has become a common practice in the current casting industry...
关键词:AZ91 magnesium alloy grain refiner cast fluidity mechanical properties 
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