MICRO-SEGREGATION

作品数：16被引量：50H指数：4
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相关领域：金属学及工艺一般工业技术冶金工程更多>>
相关作者：卢春芳李永军李兴刚马鸣龙张奎更多>>
相关机构：北京有色金属研究总院更多>>
相关期刊：《International Journal of Minerals,Metallurgy and Materials》《Transactions of Nonferrous Metals Society of China》《Journal of Wuhan University of Technology(Materials Science)》《Journal of Iron and Steel Research International》更多>>
相关基金：国家自然科学基金国家重点基础研究发展计划中国博士后科学基金国家高技术研究发展计划更多>>
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Microstructure and mechanical properties of Ti43Al6Nb alloys with different zirconium contents
《Rare Metals》2023年第6期2047-2056,共10页Xiao-Ye Zhao Rui-Run Chen Yong Yang Jing-Jie Guo Hong-Sheng Ding Yan-Qing Su Heng-Zhi Fu 
financially supported by the National Natural Science Foundation of China (Nos.51274076, 51425402 and 51331005)。
Ti43Al6Nb-xZr alloys with different additions of zirconium were prepared by vacuum arc melting furnace.The microstructure and compressive properties at room temperature(RT) were investigated.The microstructure shows d...
关键词：TiAl alloys ZR Microstructure evolution MICRO-SEGREGATION Mechanical properties 
Limitations of the homogenization process of bulk martensitic mold steel-depending on the comprehensive manifestation of various strengthening
《Journal of Materials Science & Technology》2022年第22期120-132,共13页Hanghang Liu Paixian Fu Hongwei Liu Chen Sun Ningyu Du Dianzhong Li 
The work was financially supported by the China Postdoctoral Science Foundation(No.2019M661153);The authors also appreciate the financial support by Young Talent Project by Shenyang National Laboratory for Materials Science(No.2020000358);Doctoral Research Startup Fund Guidance Program Project of Liaoning Province(No.2020-BS-004);Project to Strengthen Industrial Development at the Grass-roots Level(No.TC190A4DA/35);Guangdong Basic and Applied Basic Research Foundation(No.2019A1515110886).
A homogenization treatment(1250 °C + 12 h) was carried out to minimize the micro-segregation of bulk 718H martensitic mold steel, as verified by advanced experimental characterization and kinetic model of diffusion. ...
关键词：Martensitic mold steel Strength-toughness MICRO-SEGREGATION Synergistic strengthening 
Rapid cooling effect during solidification on macro-and micro-segregation of as-cast Mg-Gd alloy被引量：7
《Progress in Natural Science:Materials International》2021年第1期68-76,共9页Xin Tong Guoqiang You Jingchuan Luo Mahmoud Ebrahimi Guohua Wu 
the Key Project of the National Key Research&Development Program of China(No.2016YFB0301100);the Key Research&Development Project of Guangdong Province(No.2020B010186002);the National Natural Science Foundation of China(No.51775334).
The high performance of as-cast Mg-RE alloys is always related to their high RE additions.However,RE elements can be readily segregated in Mg alloys and the segregation becomes more significant with the increasing RE ...
关键词：As-cast Mg–Gd alloy Segregation Rapid cooling SOLIDIFICATION SEDIMENTATION 
Ultrasonic vibration assisted tungsten inert gas welding of dissimilar metals 316L and L415被引量：3
《International Journal of Minerals,Metallurgy and Materials》2020年第7期943-953,共11页Hong-xia Lan Xiu-fang Gong Sen-feng Zhang Liang Wang Bin Wang Li-ping Nie 
financially supported by the Technology Project of Nanchong and Southwest Petroleum University(SWPU)Cooperation(No.18SXHZ0032)。
Ultrasonic vibration assisted tungsten inert gas welding was applied to joining stainless steel 316 L and low alloy high strength steel L415.The effect of ultrasonic vibration on the microstructure and mechanical prop...
关键词：ultrasonic vibration dissimilar metal welding MICROSTRUCTURE mechanical properties MICRO-SEGREGATION electron backscatter diffraction 
Elemental micro-segregation characteristic of fiber laser welded Hastelloy C-276 sheet被引量：2
《Transactions of Nonferrous Metals Society of China》2018年第11期2237-2248,共12页Kalinga Simant BAL Jyotsna DUTTA MAJUMDAR Asimava ROY CHOUDHURY 
The elemental micro-segregation characteristic within the weld zone for ytterbium fiber laser welded Hastelloy C-276sheet was investigated. The analysis of segregation ratio and equilibrium distribution coefficient of...
关键词：Hastelloy C-276 alloy laser welding fiber laser MICRO-SEGREGATION 
Analysis of precipitation behavior of MnS in sulfur-bearing steel system with finite-difference segregation model被引量：6
《Journal of Iron and Steel Research International》2018年第8期803-812,共10页De-lin Hu Hui Liu Jian-bo Xie Juan Cheng Jian Li Jian-xun Fu 
Acknowledgements The work is financially sponsored by the National Key Research and Development Program of China （No. 201SYFB0704400）, the State Key Laboratory of Development and Application Technology of Automotive Steels （Bao-steel Group Co. Ltd.）, and the National Natural Science Foundation of China （No. 51671124）.
To further reveal the influence of micro-segregation on the precipitation behavior of MnS in sulfur-bearing steel system, a coupled model of micro-segregation and MnS precipitation was established by the finite-differ...
关键词：MnS precipitation MICRO-SEGREGATION Mathematical model SOLIDIFICATION In situ observation 
Microstructures,micro-segregation and solidification path of directionally solidified Ti-45Al-5Nb alloy被引量：7
《China Foundry》2016年第2期107-113,共7页Liang-shun Luo Tong Liu Kun Li Yan-qing Su Jing-jie Guo Heng-zhi Fu 
financially supported by the National Natural Science Foundation of China(Nos.51331005 and 51425402)
To investigate the effect of solidification parameters on the solidification path and microstructure evolution of Ti-45Al-5Nb(at.%) alloy, Bridgman-type directional solidification and thermodynamics calculations were ...
关键词：TiAl-Nb alloy directional solidification MICROSTRUCTURE MICRO-SEGREGATION solidification path 
Mixed grain structure and mechanical property anisotropy of AZ40 magnesium alloy bar with diameter of 160 mm被引量：1
《Transactions of Nonferrous Metals Society of China》2015年第12期3944-3952,共9页石国梁 张奎 李兴刚 李永军 马鸣龙 袁家伟 卢春芳 
Project(2013CB632202)supported by the National Basic Research Program of China
The mixed grain structure and mechanical property anisotropy of AZ40 magnesium alloy bar with a diameter of 160 mm manufactured by ＂multi-direction forging（MDF） ＋ extrusion ＋ online cooling＂ technique were inves...
关键词：AZ40 magnesium alloy mixed grain structure mechanical properties ANISOTROPY MICRO-SEGREGATION texture 
Thermo-Calc based multi-component micro-segregation model and solidification paths calculations被引量：3
《China Foundry》2012年第3期269-274,共6页Zhao Guangwei Li XinZhong Xu Daming Guo Jingjie Fu Hengzhi Du Yong He Yuehui 
supported by the Open Project of State Key Laboratory of Powder Metallurgy of Central South University (Grant No. 2008112042);the National Natural Science Foundation of China (Grant Nos. 51071062 and 50801019);Project 973 (Grant No. 2011CB610406)
On the basis of a multi-length scale modeling, a mixture-averaged multi-component/multiphase micro- segregation model was proposed without pre-set function for the micro-scale solute profile. The model explains the ef...
关键词：solidification path MICRO-SEGREGATION multi-component/multi-phase alloys THERMO-CALC 
Micro-segregation and Precipitation of Alloy 690 during Isothermal Solidification:the Role of Nitrogen Content被引量：3
《Journal of Materials Science & Technology》2012年第5期446-452,共7页Rong Jiang Bo Chen Xianchao Hao Yingche Ma Shuo Li Kui Liu 
supported by the National Natural Science Foundation of China (No. 50901076)
The segregation and precipitation behavior of Alloy 690 containing 0.001-0.11 wt% nitrogen during isothermal solidification at 1370 and 1355 ℃ have been investigated using optical microscopy （OM）,electron probe mic...
关键词：Alloy 690 Nitrogen content SOLIDIFICATION MICRO-SEGREGATION PRECIPITATE 
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