Acta Metall Sin  1996, Vol. 32 Issue (6): 647-652    DOI:

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NUCLEATION MECHANISM OF 8090 Al-Li ALLOY WELD METAL

HAO Chuanyong; YU Erjing; YING Huiyun; SHI Chenggen (Institute of Metal Research; Chinese Academy of Sciences; Shenyang 110015)

HAO Chuanyong; YU Erjing; YING Huiyun; SHI Chenggen (Institute of Metal Research; Chinese Academy of Sciences; Shenyang 110015). NUCLEATION MECHANISM OF 8090 Al-Li ALLOY WELD METAL. Acta Metall Sin, 1996, 32(6): 647-652.

Abstract References Related Articles Recommended Metrics Download:  PDF(602KB)  Export:  BibTeX | EndNote (RIS)       Abstract  A kind of very fine equiaxed non- dendrite, besides the equiaxed dendrites and the columnar dendrites, exists in the 8090 aluminum-lithium alloy welds. The equiaxed non-dendrites are mainly distributed at the edge of the fusion zone; occasionally they can appear in the intermediate section of weld in the form of banding. The nuclei of equiaxed dendrites and columnar dendrites are the equilibrium tetragonal Al_3Zr particles, while the nuclei of equiaxed non -dendrite are demonstrated to be metastable cubic Al_3Zr particles. Key words:  Al-Li alloy      weld      nucleation mechanism      equiaxed non-dendrite      equilibrium tetragonal Al_3Zr      metastable cubic Al_3Zr      Received:  18 June 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/I6/647 1HeYunjia,GaoDalu,SunZhixiong,Luwu．In:PeterM,WinklerPJeds．,Proc6thIntConfonAluminum-LithiumAlloy,Garmisch-partenKirchenFRG:DGMInformationsgesellschaftmbH,1992:12152于尔靖,郝传勇,应慧筠,马景霞,李敢红．焊接学报,1996;17:13PirnerM,BichselH．Metall,1975;29:2754PearceBP,KerrHW．MetallTrans,1981;12B:4795MatsudaF,NakattK,TsukamotoK,UchiyamaT．TransJWRI1984:13(1):16MondolfoLF著,王祝堂,张振录,郑璇译．铝合金的组织与性能．北京:冶金工业出版社,1988:3517NesE．ActaMetall．1972;20:4998RyumN．ActaMetall,1969;17:2699GayleFW,VandersandeJBScrMetall,1984;18:47310GregsonPJ,FlowerHMJMaterSciLett1984:3:829 [1] WANG Chongyang, HAN Shiwei, XIE Feng, HU Long, DENG Dean. Influence of Solid-State Phase Transformation and Softening Effect on Welding Residual Stress of Ultra-High Strength Steel[J]. 金属学报, 2023, 59(12): 1613-1623. [2] WU Jin, YANG Jie, CHEN Haofeng. Fracture Behavior of DMWJ Under Different Constraints Considering Residual Stress[J]. 金属学报, 2022, 58(7): 956-964. [3] CHEN Huabin, CHEN Shanben. Key Information Perception and Control Strategy of Intellignet Welding Under Complex Scene[J]. 金属学报, 2022, 58(4): 541-550. [4] YU Chun, XU Jijin, WEI Xiao, LU Hao. Research Status of Ductility-Dip Crack Occurring in Nuclear Nickel-Based Welding Materials[J]. 金属学报, 2022, 58(4): 529-540. [5] ZHU Dongming, HE Jiangli, SHI Genhao, WANG Qingfeng. Effect of Welding Heat Input on Microstructure and Impact Toughness of the Simulated CGHAZ in Q500qE Steel[J]. 金属学报, 2022, 58(12): 1581-1588. [6] 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. [7] LUO Wenze, HU Long, DENG Dean. Numerical Simulation and Development of Efficient Calculation Method for Residual Stress of SUS316 Saddle Tube-Pipe Joint[J]. 金属学报, 2022, 58(10): 1334-1348. [8] WANG Cong, ZHANG Jin. Fine-Tuning Weld Metal Compositions via Flux Optimization in Submerged Arc Welding: An Overview[J]. 金属学报, 2021, 57(9): 1126-1140. [9] SUN Jiaxiao, YANG Ke, WANG Qiuyu, JI Shanlin, BAO Yefeng, PAN Jie. Microstructure and Mechanical Properties of 5356 Aluminum Alloy Fabricated by TIG Arc Additive Manufacturing[J]. 金属学报, 2021, 57(5): 665-674. [10] LI Zihan, XIN Jianwen, XIAO Xiao, WANG Huan, HUA Xueming, WU Dongsheng. The Arc Physical Characteristics and Molten Pool Dynamic Behaviors in Conduction Plasma Arc Welding[J]. 金属学报, 2021, 57(5): 693-702. [11] LI Yanmo, GUO Xiaohui, CHEN Bin, LI Peiyue, GUO Qianying, DING Ran, YU Liming, SU Yu, LI Wenya. Microstructure and Mechanical Properties of Linear Friction Welding Joint of GH4169 Alloy/S31042 Steel[J]. 金属学报, 2021, 57(3): 363-374. [12] LI Suo, CHEN Weiqi, HU Long, DENG Dean. Influence of Strain Hardening and Annealing Effect on the Prediction of Welding Residual Stresses in a Thick-Wall 316 Stainless Steel Butt-Welded Pipe Joint[J]. 金属学报, 2021, 57(12): 1653-1666. [13] HE Changshu, QIE Mofan, ZHANG Zhiqiang, ZHAO Xiang. Effect of Axial Ultrasonic Vibration on Metal Flow Behavior During Friction Stir Welding[J]. 金属学报, 2021, 57(12): 1614-1626. [14] LI Juan, ZHAO Honglong, ZHOU Nian, ZHANG Yingzhe, QIN Qingdong, SU Xiangdong. Diffusion Bonding of CoCrFeNiCu High-Entropy Alloy to 304 Stainless Steel[J]. 金属学报, 2021, 57(12): 1567-1578. [15] LIU Chenxi, MAO Chunliang, CUI Lei, ZHOU Xiaosheng, YU Liming, LIU Yongchang. Recent Progress in Microstructural Control and Solid-State Welding of Reduced Activation Ferritic/Martensitic Steels[J]. 金属学报, 2021, 57(11): 1521-1538. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed