Acta Metall Sin  1992, Vol. 28 Issue (9): 1-6    DOI:

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INTERFACE MORPHOLOGY AND SOLUTE SEGREGATION OF 8090 Al-Li ALLOY DURING UNIDIRECTIONAL SOLIDIFICATION

LIU Yulin; ZHANG Yun; ZHAO Hong'en; HU Zhuangqi; Sill Changxu (Institute of Metal Research; Academia Sinica; Shenyang)

LIU Yulin; ZHANG Yun; ZHAO Hong'en; HU Zhuangqi; Sill Changxu (Institute of Metal Research; Academia Sinica; Shenyang). INTERFACE MORPHOLOGY AND SOLUTE SEGREGATION OF 8090 Al-Li ALLOY DURING UNIDIRECTIONAL SOLIDIFICATION. Acta Metall Sin, 1992, 28(9): 1-6.

Abstract References Related Articles Recommended Metrics Download:  PDF(1460KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The solid-liquid interface morphology and solute segregation behaviour of 8090 Al-Li alloy during unidirectional solidification were studied by the liquid metal quenching method under varied processing conditions. When solidification rate, R<0.13 or>0.75 mm/min (temperature gradient, GL=130℃/cm), the structure revealed of planar or dendritic interface respectively. With the increase of R, the interface morphology becomes cellular from planar gradually within a narrow range. And the greater the R is, the finer the dendrite will be. Segregation of element Cu and impurity elements Fe and Si quite severe. The interface morphology markedly influences on solute segregation. During solidification at coarse dendrite interface. Their segregation ratios are rather great and solidified structure is coarse. Key words:  Al-Li alloy      unidirectional solidification      interface morphology      solute segregation      alloy 8090      Received:  18 September 1992      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1992/V28/I9/1 1 Sanders T H Jr., Starke E A Jr, In: Sanders T H Jr., Starke E A Jr., eds. Aluminiu-Lithium Allovs, Proc 5th Int Aluminum-Lithium Conf, Williamsburg, Virginia, March 27-31, 1989, Brmingham, UK: Materials and Compnent Engineering Publications Ltd., 1989:1 2 Lavernia E J, Srivatsan T S, Mohamed F A, J Mater Sci, 1990; 25: 1137． 3 赵先国,蔡玉林编.铸造高温合金文集.北京:铸造高温合金文集编审委员会,1986,1． [1] WANG Shuo, WANG Junsheng. Structural Evolution and Stability of the δ′/θ′/δ′ Composite Precipitate in Al-Li Alloys: A First-Principles Study[J]. 金属学报, 2022, 58(10): 1325-1333. [2] GAI Yibing, TANG Fawei, HOU Chao, LU Hao, SONG Xiaoyan. First-Principles Calculation on the Influence of Alloying Elements on Interfacial Features of W-Cu System[J]. 金属学报, 2020, 56(7): 1036-1046. [3] LI Shiju, LI Yang, CHEN Jianqiang, LI Zhonghao, XU Guangming, LI Yong, WANG Zhaodong, WANG Guodong. Segregation Behavior, Microstructure and Properties of 2099Al-Li Alloy Produced by Twin-Roll Casting Underthe Action of Electromagnetic Oscillation Field[J]. 金属学报, 2020, 56(6): 831-839. [4] Chao CAI,Yang LI,Jinfeng LI,Zhao ZHANG,Jianqing ZHANG. Correlation Between Ageing Precipitation, Potential and Intergranular Corrosion of 2A97 Al-Li Alloy Sheet[J]. 金属学报, 2019, 55(8): 958-966. [5] Xu LI,Qingbo YANG,Xiangze FAN,Yonglin GUO,Lin LIN,Zhiqing ZHANG. Influence of Deformation Parameters on Dynamic Recrystallization of 2195 Al-Li Alloy[J]. 金属学报, 2019, 55(6): 709-719. [6] Huiyuan WANG, Hang ZHANG, Xinyu XU, Min ZHA, Cheng WANG, Pinkui MA, Zhiping GUAN. Current Research and Future Prospect on Microstructure Stability of Superplastic Light Alloys[J]. 金属学报, 2018, 54(11): 1618-1624. [7] Jinfeng LI,Danyang LIU,Ziqiao ZHENG,Yonglai CHEN,Xuhu ZHANG. EFFECT OF Er MICRO-ALLOYING ON MECHANICAL PROPERTIES AND MICROSTRUCTURES OF 2055 Al-Li ALLOY[J]. 金属学报, 2016, 52(7): 821-830. [8] Xianfeng ZHANG,Guoai LI,Zheng LU,Juan YU,Min HAO. EFFECT OF PREAGED STRETCH AFTER QUENCHED ON THE PROPERTIES AND MICROSTRUCTURE OF A NATURALLY AGED Al-Li ALLOY[J]. 金属学报, 2016, 52(12): 1497-1502. [9] Yong LI,Guohuai LIU,Zhaodong WANG,Tianliang FU,Xinzhong LI,Yanqing SU,Jingjie GUO,Hengzhi FU. MICROSTRUCTURE EVOLUTION AND SOLUTE SEGREGATION IN DIRECTIONALLY SOLIDIFIED TiAl ALLOYS WITH HIGH Nb CONTENT[J]. 金属学报, 2015, 51(8): 957-966. [10] LIU Fenjun, FU Li, ZHANG Wenyuan, MENG Qiang, DONG Chunlin, LUAN Guohong. INTERFACE STRUCTURE AND MECHANICAL PRO-PERTIES OF FRICTION STIR WELDING JOINT OF 2099-T83/2060-T8 DISSIMILAR Al-Li ALLOYS[J]. 金属学报, 2015, 51(3): 281-288. [11] YANG Qianqian, LIU Yuan, LI Yanxiang. MODELING AND SIMULATION OF STRUCTURAL FORMATION OF POROUS ALUMINUM IN GASAR SOLIDIFICATION[J]. 金属学报, 2014, 50(11): 1403-1412. [12] LI Xiaofei, GUO Xiping. EUTECTIC MICROSTRUCTURE EVOLUTION OF DIRECTIONALLY SOLIDIFIED Nb-Ti-Si BASE ULTRAHIGH TEMPERATURE ALLOY[J]. 金属学报, 2013, 49(7): 853-862. [13] LI Jizhan, FU Ying, JIE Jinchuan, ZHAO Jialei, Joonpyo Park, Jongho Kim,LI Tingju. CONTINUOUS CASTING OF THE CLADDING 3003/4004 ALUMINUM ALLOY CIRCULAR INGOT[J]. 金属学报, 2013, 49(3): 297-302. [14] PENG Dongjian, LIN Xin, ZHANG Yunpeng, GUO Xiong, WANG Meng, HUANG Weidong. INVESTIGATION OF EFFECT OF INTERFACE ENERGY ANISOTROPY ON DENDRITIC GROWTH IN UNIDIRECTIONAL SOLIDIFICATION BY FRONT TRACKING SIMULATION[J]. 金属学报, 2013, 49(3): 365-371. [15] WANG Dong DONG Chunlin XIAO Bolv GAO Cong HE Miao LUAN Guohong MA Zongyi. EFFECT OF WELDING PARAMETERS ON MICROSTRUCTURE AND MECHANICAL PROPERTIES OF FRICTION STIR WELDED AlCuLi ALLOY JOINTS[J]. 金属学报, 2012, 48(9): 1109-1115. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed