SEGREGATION

作品数：574被引量：1111H指数：12
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Segregation of Mg-6Gd alloy under natural convection:From macro solute distribution to micro dendrite growth
《China Foundry》2024年第5期613-624,共12页Hong-xu Chen Ang Zhang Hao Li Yu Gao Yu-hong Cui Guang-sheng Huang Bin Jiang Fu-sheng Pan 
supported by the National Key Research and Development Program of China(Grant No.2021YFB3701000);the National Natural Science Foundation of China(Grant Nos.52101125,52471118,U2037601,and U21A2048);the Young Elite Scientists Sponsorship Program by China Association for Science and Technology(CAST)(Grant No.2022QNRC001).
Segregation is a serious defect in alloy ingots which severely deteriorates materials performance.The segregation defect in Mg-6Gd alloy is studied by coupling macro thermal-solutal-convection transport and micro dend...
关键词：magnesium alloy SEGREGATION numerical simulation phase-field simulation multiscale 
Effect of electromagnetic stirring on metallurgical quality of GCr15 electroslag ingot被引量：4
《China Foundry》2022年第1期46-54,共9页Xiao-fang Shi Tao Xu Li-zhong Chang 
financially supported by the National Natural Science Foundation of China(51774003/52074002/51974002);the Ministry of Industry and Information Technology(TC190A4DA-35)。
To further improve the metallurgical quality of electroslag remelting,remove the large inclusions in electroslag ingot and refine the solidification structure of electroslag ingot,an electroslag remelting furnace with...
关键词：electroslag remelting electromagnetic stirring INCLUSION solidification SEGREGATION GCr15 bearing steel 
Effect of Zr on solidification and microstructure of a Ni-based superalloy with high Al and Ti contents
《China Foundry》2022年第1期17-26,共10页Guang-di Zhao Xi-min Zang Fang Liu Wei-wei Zhang Shuo Gao Xue Li Jing Guo 
financially supported by the National Natural Science Foundation of China(Grant No.51904146)。
The total content of Al and Ti in advanced Ni-based wrought superalloys is up to 7.5wt.%,which makes it easier to form harmful nonequilibrium eutectic(γ+γ′)andηphase.It has been reported that the addition of certa...
关键词：ZIRCONIUM Ni-based superalloy solidification behavior SEGREGATION 
Influence of laser parameters on segregation of Nb during selective laser melting of Inconel 718被引量：1
《China Foundry》2021年第4期379-388,共10页Liang Wang Ran Cui Bin-qiang Li Xue Jia Long-hui Yao Yan-qing Su Jing-jie Guo Tong Liu 
the financial support from the National Natural Science Foundation of China(Nos.51425402 and 51501048)。
A transient three-dimensional powder-scale model was established for understanding the flow field and mass transfer within the molten pool during the selective laser melting(SLM)of Inconel 718 alloy by considering som...
关键词：selective laser melting Inconel 718 alloy flow field mass transfer SEGREGATION 
Segregation in squeeze casting 6061 aluminum alloy wheel spokes and its formation mechanism被引量：3
《China Foundry》2021年第1期45-51,共7页Fan-bo Meng Hong-jun Huang Xiao-guang Yuan Xue-jian Lin Ze-wen Cui Xian-lei Hu 
financially supported by the National Natural Science Foundation of China(Grant No.51875365)。
Segregation can seriously damage the mechanical properties of the aluminum alloys.6061 aluminum alloy wheel spokes were prepared by squeeze casting.To investigate the formation mechanism of segregation,the microstruct...
关键词：6061 aluminum wheels SEGREGATION squeeze casting Mg_(2)Si Al FeSi Al_(5)Cu_(2)Mg_(8)Si_(6) 
Different aging behaviors at surface layer and central region of a die-casting A380 alloy during heat treatment被引量：1
《China Foundry》2017年第6期506-512,共7页Zi-hao Yuan Zhi-peng Guo Shou-mei Xiong 
financially supported by the National Natural Science Foundation of China-China Aerospace Science and Technology Corporation Aerospace Advanced Manufacturing Technology Research Foundation(NO.U1537202);the Special Funding Program on Transformation of Scientific and Technological Achievements at Jiangsu Province(No.BA2015041)
Microstructural and hardness evolutions of a vacuum-assistant die-cast A380(Al-8.67 wt.%Si-3.27 wt.%Cu) alloy during heat treatment were investigated. Isothermal DSC test at 200 °C revealed that the precipitation rea...
关键词：high pressure die casting(HPDC) heat treatment macro-segregation kinetics precipitation externally solidified crystals(ESCs) 
Improved tensile properties of Mg-8Sn-1Zn alloy induced by minor Ti addition被引量：1
《China Foundry》2016年第3期151-158,共8页Wei-li Cheng Quan-wei Tian Rui Huo Liang Tian Shou-fan Rong 
supported by the National Natural Science Foundation of China(Grant no.51404166);Shanxi Province Science Foundation for Youths(2013021013-4);Research Project Supported by Shanxi Scholarship Council of China(2014-023);Technological Innovation Programs of Higher Education Institutions Shanxi(Grant no.2014120);the Advanced Programs of Department of Human Resources and Social Security of Shanxi Province for Returned Scholars(2013101)
In this study, the influence of minor titanium(Ti) addition on the microstructure and tensile properties of Mg-8Sn-1Zn based alloys were investigated by means of optical microscopy, X-ray diffraction, scanning electro...
关键词：Mg-8Sn-1Zn alloy tensile properties TITANIUM tin segregation 
Effect of nodule count and austempering heat treatment on segregation behavior of alloying elements in ductile cast iron被引量：3
《China Foundry》2016年第3期217-222,共6页E.Akbarzadeh Chiniforush N.Iranipour S.Yazdani 
the Sahand University of Technology for providing the research facilities and financial support
The equilibrium partition ratio, k, has been measured for Mn, Mo, Si, Ni and Cu in a ductile iron with composition(wt.%): 3.45 C, 0.25 Mn, 0.25 Mo, 2.45 Si, 0.5Ni and 0.5Cu with different nodule counts obtained from d...
关键词：SEGREGATION ductile iron AUSTENITIZATION AUSTEMPERING 
Distributions of Sr and Fe and their influence on modification of hypoeutectic Al-Si alloy被引量：4
《China Foundry》2016年第2期85-92,共8页Tu Lan Jian-guo Li 
supported by the International Science & Technology Cooperation Program of China(No.2015DFR50470)
The influence of cooling rate and Fe-containing phases on Sr-modification of Si phases in hypoeutectic Al-Si alloys, a problem with great industrial importance, was investigated. The microstructures of samples were ex...
关键词：Al-Si Alloys cooling rate modification theory Sr segregation Fe-contained phases 
Prevention of halfway cracks in continuous cast A36 steel slabs containing boron被引量：1
《China Foundry》2015年第1期26-31,共6页Jian-chao Ma Qing-feng Zhou Du-xing Su Xu-yan Deng 
The formation of halfway cracks in continuous cast A36 steel slabs containing 17 ppm boron was studied by investigating the zero ductility temperature(ZDT), zero strength temperature(ZST), solidification characteristi...
关键词：BORON halfway crack continuous casting hot ductility solution segregation 
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