Acta Metall Sin  1996, Vol. 32 Issue (10): 1014-1018    DOI:

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PRECIPITATION AND GROWTH OF δ'- PHASE IN 8090 Al-Li ALLOY

ZHANG Wanming;ZHANG Yun;HU Zhuangqi;LIU Yulin;ZHAO Hong'en(Institute of Metal Research;Chinese Academy of Sciences;Shenyang 110015)(Institute of Metal Research; Chinese Acadeiny of Sciences;Shenyang110015)(Manuscript received 1995-12-15;in revised form 1996-06-19)

ZHANG Wanming;ZHANG Yun;HU Zhuangqi;LIU Yulin;ZHAO Hong'en(Institute of Metal Research;Chinese Academy of Sciences;Shenyang 110015)(Institute of Metal Research; Chinese Acadeiny of Sciences;Shenyang110015)(Manuscript received 1995-12-15;in revised form 1996-06-19). PRECIPITATION AND GROWTH OF δ'- PHASE IN 8090 Al-Li ALLOY. Acta Metall Sin, 1996, 32(10): 1014-1018.

Abstract References Related Articles Recommended Metrics Download:  PDF(417KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The processes of the precipitation and growth of δ'-phase(Al3Li) in an 8090 Al-Li alloy(Al-2.45Li-1.21 Cu-1.20Mg-0.15Zr) under different heat-treatments have been studied by TEM and image analyses.The results show that the growth of δ'-phase,the main strenthening phase in the alloy,consists of rapid and slow stages during aging at 160℃.The relationship between r3(r being the radius of δ'-particle) and aging time is not linear.As an analytical result,the value of k in LSW model may decrease as the vacancy concentration reduces. Key words:  Al-Li alloy      δ'-phase      precipitation and growth      aging treatment      Received:  18 October 1996      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/Y1996/V32/I10/1014 1LifshitzIM,SlyozovVV．JPhysChemSolide,1961;19:352MahalingamK,GuBP,LiedleGL,SandersTHJr．ActaMelall,1987,35:4833GuBP,MahalingamK．LiedleGL,SandersTHJr．TostenMH．VasadevanAK,HowellPR．In:BakerC,GregsonPJ,HarrisSJ,PeelCJeds,Proc3rdIntConfonAluminum-LithiumAlloys1985,London:InstMet,1986:3604GomieroP,LivetF,BrechetY,LouchetF．ActaMetallMater,1992;40:8475《有色金属及其热处理》编写组．有色金属及其热处理,北京:国防工业出版社,1981:396MondolfoLF．AluminumAlloys:StructureandProperties．London:Butterworth,1976:26 [1] GENG Yaoxiang, TANG Hao, XU Junhua, ZHANG Zhijie, YU Lihua, JU Hongbo, JIANG Le, JIAN Jianglin. Formability and Mechanical Properties of High-Strength Al-(Mn, Mg)-(Sc, Zr) Alloy Produced by Selective Laser Melting[J]. 金属学报, 2022, 58(8): 1044-1054. [2] 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. [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] 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. [7] 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. [8] 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. [9] YANG Chenggong, SHAN Jiguo, REN Jialie. PHASE TRANSFORMATION TEMPERATURE CONTROL OF WELD METAL OF LASER WELDED TiNi SHAPE MEMORY ALLOY JOINT[J]. 金属学报, 2013, 49(2): 199-206. [10] 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. [11] XIANG Hongliang FAN Jinchun LIU Dong GUO Peipei. EFFECTS OF ANTIBACTERIAL AGING TREATMENT ON MICROSTRUCTURE AND PROPERTIES OF COPPER-CONTAINING DUPLEX STAINLESS STEEL I. Microstructure and Evolution of Copper-Rich Phase[J]. 金属学报, 2012, 48(9): 1081-1088. [12] HU Benfu LIU Guoquan WU Kai HU Penghui. MORPHOLOGICAL CHANGES BEHAVIOR OF FAN-TYPE STRUCTURES OF γ' PRECIPITATES IN NICKEL-BASED POWDER METALLURGY SUPERALLOYS[J]. 金属学报, 2012, 48(7): 830-836. [13] ZHANG Jinling1,2,3, FENG Zhiyong1, HU Lanqing1,2,3,WANG Shebin1,2,3, XU Bingshe1,2,3. PRECIPITATION BEHAVIOR OF AZ91 MAGNESIUM ALLOYS WITH DIFFERENT La CONTENTS[J]. 金属学报, 2012, 48(5): 607-614. [14] ZENG Xiaoqin WU Yujuan PENG Liming LIN Dongliang DING Wenjiang PENG Yinghong. LPSO STRUCTURE AND AGING PHASES IN Mg-Gd-Zn-Zr ALLOY[J]. 金属学报, 2010, 46(9): 1041-1046. [15] SU Jingxin; ZHANG Zhao; CAO Fahe; ZHANG Jianqing; CAO Chunan. EXFOLIATION CORROSION BEHAVIOR OF T6 TREATED 2090 Al-Li ALLOY IN EXCO SOLUTION AND EIS DURING EXFOLIATION CORROSION EVOLUTION[J]. 金属学报, 2005, 41(9): 974-978 . No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed