Acta Metall Sin  1997, Vol. 33 Issue (8): 802-806    DOI:

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EFFECT OF IMPURITIES AND Ce ADDITION ON INTRINSIC AND EXTRINSIC TOUGHENING LEVELS OF 8090 Al-Li ALLOY

MENG Liang; ZHENG Xiulin (Northwestern Polytechnical University; Xi'an 710072) (Manuscript received 1996-08-26; in revised form 1996-12-02)

MENG Liang; ZHENG Xiulin (Northwestern Polytechnical University; Xi'an 710072) (Manuscript received 1996-08-26; in revised form 1996-12-02). EFFECT OF IMPURITIES AND Ce ADDITION ON INTRINSIC AND EXTRINSIC TOUGHENING LEVELS OF 8090 Al-Li ALLOY. Acta Metall Sin, 1997, 33(8): 802-806.

Abstract References Related Articles Recommended Metrics Download:  PDF(1305KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The variability of intrinsic and extrinsic toughening levels has been derived for 8090 Al-Li alloy. The tensile properties and plane stress fracture toughness have been deter-mined for alloy 8090 sheets with various contents of impurities and Ce addition. Impurities Fe, Si and Na, K show an evident behavior to decrease the intrinsic toughening level and the fracture toughness even though the impurities could produce the extrinsic toughening effi-ciency to a certain degree. The intrinsic toughening level could be enhanced but the extrinsic toughening level is reduced by adding minor Ce element into alloy 8090 containing higher concentration of impurities. The intrinsic and extrinsic toughening levels are increased and the fracture toughness improved when the alloy containing higher concentration of impurities is modified by a fixed Ce content. Key words:  Al-Li based alloy      impurity      rare earth addition      toughening      Received:  18 August 1997      Service E-mail this article Add to citation manager E-mail Alert RSS Collect articles（） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1997/V33/I8/802 1 Lynch S P. Mater Sci Eng, 1991, A136: 45 2 Blankenship C P, Starke E A. Metall Trans, 1993; 24A: 833 3孟亮,张宝昌,梁英,张卫中,田普科.金属学报,1992;28:A121 4孟亮,耿东生,郑修麟.金属学报,1995;31:A40 5 Meng L, Zheng X L. Scr Metall Mater, 1995; 33: 27 6 Meng L, Zheng X L, Tian L. Mater Sci Eng, 1995, A 196: 191 7孟亮.西北工业大学学报, 1993;11: 389 8 Zheng X L. Eng Fract Mech, 1989; 33: 685 9 Liu Y L, Hu Z Q, Zhang Y, Shi C X. Metall Trans, 1993; 24B: 857 10 Webster D. Metall Trans, 1987, 18A: 2181 [1] LIU Junpeng, CHEN Hao, ZHANG Chi, YANG Zhigang, ZHANG Yong, DAI Lanhong. Progress of Cryogenic Deformation and Strengthening-Toughening Mechanisms of High-Entropy Alloys[J]. 金属学报, 2023, 59(6): 727-743. [2] GU Ruicheng, ZHANG Jian, ZHANG Mingyang, LIU Yanyan, WANG Shaogang, JIAO Da, LIU Zengqian, ZHANG Zhefeng. Fabrication of Mg-Based Composites Reinforced by SiC Whisker Scaffolds with Three-Dimensional Interpenetrating-Phase Architecture and Their Mechanical Properties[J]. 金属学报, 2022, 58(7): 857-867. [3] XU Liujie, ZONG Le, LUO Chunyang, JIAO Zhaolin, WEI Shizhong. Toughening Pathways and Regulatory Mechanisms of Refractory High-Entropy Alloys[J]. 金属学报, 2022, 58(3): 257-271. [4] LU Lei, ZHAO Huaizhi. Progress in Strengthening and Toughening Mechanisms of Heterogeneous Nanostructured Metals[J]. 金属学报, 2022, 58(11): 1360-1370. [5] FAN Genlian, GUO Zhiqi, TAN Zhanqiu, LI Zhiqiang. Architecture Design Strategies and Strengthening-Toughening Mechanisms of Metal Matrix Composites[J]. 金属学报, 2022, 58(11): 1416-1426. [6] ZHAO Yonghao, MAO Qingzhong. Toughening of Nanostructured Metals[J]. 金属学报, 2022, 58(11): 1385-1398. [7] AN Zibing, MAO Shengcheng, ZHANG Ze, HAN Xiaodong. Strengthening-Toughening Mechanism and Mechanical Properties of Span-Scale Heterostructure High-Entropy Alloy[J]. 金属学报, 2022, 58(11): 1441-1458. [8] LI Yuxing, LIU Xinghao, WANG Cailin, HU Qihui, WANG Jinghan, MA Hongtao, ZHANG Nan. Research Progress on Corrosion Behavior of Gaseous CO2 Transportation Pipelines Containing Impurities[J]. 金属学报, 2021, 57(3): 283-294. [9] ZHU Wenting, CUI Junjun, CHEN Zhenye, FENG Yang, ZHAO Yang, CHEN Liqing. Design and Performance of 690 MPa Grade Low-Carbon Microalloyed Construction Structural Steel with High Strength and Toughness[J]. 金属学报, 2021, 57(3): 340-352. [10] YANG Lipo, ZHANG Hailong, ZHANG Yongshun. Present Analysis and Trend Prediction of Shape/ Performance Collaborative Control for High-End Cold Rolling Foils[J]. 金属学报, 2021, 57(3): 295-308. [11] LIU Gang, ZHANG Peng, YANG Chong, ZHANG Jinyu, SUN Jun. Aluminum Alloys: Solute Atom Clusters and Their Strengthening[J]. 金属学报, 2021, 57(11): 1484-1498. [12] YU Lei, CAO Rui. Welding Crack of Ni-Based Alloys: A Review[J]. 金属学报, 2021, 57(1): 16-28. [13] LIU Zhenbao,LIANG Jianxiong,SU Jie,WANG Xiaohui,SUN Yongqing,WANG Changjun,YANG Zhiyong. Research and Application Progress in Ultra-HighStrength Stainless Steel[J]. 金属学报, 2020, 56(4): 549-557. [14] WANG Lei, AN Jinlan, LIU Yang, SONG Xiu. Deformation Behavior and Strengthening-Toughening Mechanism of GH4169 Alloy with Multi-Field Coupling[J]. 金属学报, 2019, 55(9): 1185-1194. [15] Yucheng WU. The Routes and Mechanism of Plasma Facing Tungsten Materials to Improve Ductility[J]. 金属学报, 2019, 55(2): 171-180. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed