Acta Metall Sin  1994, Vol. 30 Issue (10): 477-480    DOI:

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FORMATION OF GRAIN BOUNDARY PRECIPITATE FREE ZONES IN 2091 Al-Li ALLOY AND ITS EFFECT ON STRESS CORROSION CRACKING

LI Renshun; WANG Zuoyi(Harbin Institute of Technology)(Manuscript received 24 March; 1994; in revised form 30 May; 1994)

LI Renshun; WANG Zuoyi(Harbin Institute of Technology)(Manuscript received 24 March; 1994; in revised form 30 May; 1994). FORMATION OF GRAIN BOUNDARY PRECIPITATE FREE ZONES IN 2091 Al-Li ALLOY AND ITS EFFECT ON STRESS CORROSION CRACKING. Acta Metall Sin, 1994, 30(10): 477-480.

Abstract References Related Articles Recommended Metrics Download:  PDF(324KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The stress corrosion cracking (SCC) susceptibility of 2091 Al-Li alloy was studied under tension at slow strain rate by quench aging in various media. TEM observation showed that the grain boundary precipitate free zones (PFZ) narrowed with accelerated quenching rate, yet gradually widened with the nucleation and growth of the grain boundary precipitated phase during aging. An interpretation seems to be given that the PFZ may be formed by a vacancy loss mechanism at initial stage of mechanism during sequent aging. The wider the PFZ is, the more susceptibel the alloy will be to SCC. Correspondent: Li Renshun, associate professor, Post Box No. 432, Harbin Institute of Technology, Harbin 150001 Key words:  Al-Li alloy      precipitate free zone      stress corrosion cracking      Received:  18 October 1994      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/Y1994/V30/I10/477 1YaoDP,ZhangYZ,HuZQ,LiYY,ShiCX．ScriMetall,1989;23:42JhaSC,SandersTH,JR,DayanandaMA．ActaMetall,1987;35:23EmburyJD,NivholsonRB．ActaMetall,1965:134CorwardRC．Corrosion,1990;46(3):161F [1] MA Zhimin, DENG Yunlai, LIU Jia, LIU Shengdan, LIU Honglei. Effect of Quenching Rate on Stress Corrosion Cracking Susceptibility of 7136 Aluminum Alloy[J]. 金属学报, 2022, 58(9): 1118-1128. [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] Hongchi MA, Cuiwei DU, Zhiyong LIU, Yong LI, Xiaogang LI. Comparative Study of Stress Corrosion Cracking Behaviors of Typical Microstructures of Weld Heat-Affected Zones of E690 High-Strength Low-Alloy Steel in SO2-Containing Marine Environment[J]. 金属学报, 2019, 55(4): 469-479. [7] Ping DENG,Chen SUN,Qunjia PENG,En-Hou HAN,Wei KE,Zhijie JIAO. Study on Irradiation Assisted Stress Corrosion Cracking of Nuclear Grade 304 Stainless Steel[J]. 金属学报, 2019, 55(3): 349-361. [8] Jun YU, Deping ZHANG, Ruosheng PAN, Zehua DONG. Electrochemical Noise of Stress Corrosion Cracking of P110 Tubing Steel in Sulphur-Containing Downhole Annular Fluid[J]. 金属学报, 2018, 54(10): 1399-1407. [9] Hongzhong YUAN,Zhiyong LIU,Xiaogang LI,Cuiwei DU. Influence of Applied Potential on the Stress Corrosion Behavior of X90 Pipeline Steel and Its Weld Joint in Simulated Solution of Near Neutral Soil Environment[J]. 金属学报, 2017, 53(7): 797-807. [10] Hongliang MING,Zhiming ZHANG,Jianqiu WANG,En-Hou HAN,Mingxing SU. Microstructure and Local Properties of a Domestic Safe-End Dissimilar Metal Weld Joint by Using Hot-Wire GTAW[J]. 金属学报, 2017, 53(1): 57-69. [11] Maocheng YAN,Shuang YANG,Jin XU,Cheng SUN,Tangqing WU,Changkun YU,Wei KE. STRESS CORROSION CRACKING OF X80 PIPELINE STEEL AT COATING DEFECT IN ACIDIC SOIL[J]. 金属学报, 2016, 52(9): 1133-1141. [12] Zhiyong LIU,Zongshu LI,Xiaolin ZHAN,Wenzhu HUANGFU,Cuiwei DU,Xiaogang LI. GROWTH BEHAVIOR AND MECHANISM OF STRESS CORROSION CRACKS OF X80 PIPELINE STEEL IN SIMULATED YINGTAN SOIL SOLUTION[J]. 金属学报, 2016, 52(8): 965-972. [13] 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. [14] Zilong ZHANG, Shuang XIA, Wei CAO, Hui LI, Bangxin ZHOU, Qin BAI. EFFECTS OF GRAIN BOUNDARY CHARACTER ON INTERGRANULAR STRESS CORROSION CRACKING INITIATION IN 316 STAINLESS STEEL[J]. 金属学报, 2016, 52(3): 313-319. [15] Hongchi MA, Cuiwei DU, Zhiyong LIU, Wenkui HAO, Xiaogang LI, Chao LIU. STRESS CORROSION BEHAVIORS OF E690 HIGH-STRENGTH STEEL IN SO2-POLLUTED MARINE ATMOSPHERE[J]. 金属学报, 2016, 52(3): 331-340. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed