Effects of two-stage creep-aging processing on mechanical properties of an Al-Cu-Mg alloy

被引：31
|
作者：
Lin, Y. C. [1 ,2 ,3 ]
Liu, Guan [1 ,2 ]
Chen, Ming-Song [1 ,2 ]
Li, Jia [1 ,2 ]
Zhou, Mi [1 ,2 ]
Zhou, Hua-Min [4 ]
机构：
[1] Cent S Univ, Sch Mech & Elect Engn, Changsha 410083, Hunan, Peoples R China
[2] Cent S Univ, Light Alloy Res Inst, Changsha 410083, Hunan, Peoples R China
[3] State Key Lab High Performance Complex Mfg, Changsha 410083, Hunan, Peoples R China
[4] State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Peoples R China
来源：
MATERIALS & DESIGN | 2015年 / 79卷
关键词：
Two-stage creep-aging; Alloy; Mechanical properties; Aging precipitates; HOT TENSILE DEFORMATION; YIELD-POINT PHENOMENON; 2024; ALUMINUM-ALLOY; NI-BASED SUPERALLOY; FRACTURE CHARACTERISTICS; DUCTILITY BEHAVIOR; FLOW-STRESS; AG ALLOY; PRECIPITATION; MICROSTRUCTURE;
D O I：
10.1016/j.matdes.2015.04.047
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Two-stage creep-aging behavior of an Al-Cu-Mg alloy are studied by uniaxial tensile creep tests over wide ranges of temperature and external stress. Effects of creep-aging temperature and external stress on mechanical properties are discussed. It is found that the mechanical properties of the studied Al-Cu-Mg alloy are strongly sensitive to the creep-aging parameters. The two-stage creep-aging processing can change the characteristics of aging precipitates and dislocations, which greatly affects the mechanical properties of the studied Al-Cu-Mg alloy. With the increase of the second stage creep-aging temperature, the yield strength increases, while the ultimate tensile strength and elongation decrease. Meanwhile, the yield strength decreases with the increase of external stress. However, the ultimate tensile strength and elongation first increase and then decrease when the external stress is continuously increased within the tested conditions. Additionally, the mechanical properties of the two-stage creep-aged alloy are better than those of one-stage creep-aged and stress-free aged alloys. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：127 / 135
页数：9
相关论文
共 50 条
  • [21] Effect of Retrogression and Re-Aging on Microstructures and Mechanical Properties of an Al-Cu-Mg Alloy
    Yongxin Jia
    Ruiming Su
    Hongyu Liao
    Guanglong Li
    Yingdong Qu
    Rongde Li
    Journal of Materials Engineering and Performance, 2023, 32 : 1423 - 1431
  • [22] Modeling of the Temperature-Related Two-Stage Creep Aging for Al-Zn-Mg-Cu Aluminum Alloy
    Xu Fushun
    Tan Jia
    Zhang Jin
    Deng Yunlai
    RARE METAL MATERIALS AND ENGINEERING, 2018, 47 (02) : 496 - 502
  • [23] Modeling of the Temperature-Related Two-Stage Creep Aging for Al-Zn-Mg-Cu Aluminum Alloy
    Xu, Fushun
    Tan, Jia
    Zhang, Jin
    Deng, Yunlai
    Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering, 2018, 47 (02): : 496 - 502
  • [24] Effect of Retrogression and Re-Aging on Microstructures and Mechanical Properties of an Al-Cu-Mg Alloy
    Jia, Yongxin
    Su, Ruiming
    Liao, Hongyu
    Li, Guanglong
    Qu, Yingdong
    Li, Rongde
    JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2023, 32 (03) : 1423 - 1431
  • [25] Microstructure and mechanical properties of two-stage aged Al-Cu-Mg-Ag-Sm alloy
    Wen-Long Zhang
    Dai-Hong Xiao
    Ting Li
    Jian-Di Du
    Dong-Yan Ding
    Rare Metals, 2019, 38 (01) : 42 - 51
  • [26] Microstructure and mechanical properties of two-stage aged Al-Cu-Mg-Ag-Sm alloy
    Zhang, Wen-Long
    Xiao, Dai-Hong
    Li, Ting
    Du, Jian-Di
    Ding, Dong-Yan
    RARE METALS, 2019, 38 (01) : 42 - 51
  • [27] Effect of thermomechanical treatment on the mechanical properties of an Al-Cu-Mg alloy
    Song, Min
    He, Yuehui
    Xiao, Daihong
    Huang, Baiyun
    MATERIALS & DESIGN, 2009, 30 (03): : 857 - 861
  • [28] Precipitation in Al-Cu-Mg alloy during creep exposure
    Lin, Y. C.
    Xia, Yu-Chi
    Jiang, Yu-Qiang
    Li, Lei-Ting
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2012, 556 : 796 - 800
  • [29] Effect of precipitates on creep behaviors of Al-Cu-Mg alloy
    Chen, Yu-Qiang
    Pan, Su-Ping
    Liu, Wen-Hui
    Cai, Zhi-Hua
    Tang, Si-Wen
    Tang, Chang-Ping
    Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals, 2015, 25 (04): : 900 - 909
  • [30] Effect of secondary aging on microstructure and properties of cast Al-Cu-Mg alloy
    Rui-ming Su
    Yong-xin Jia
    Jian Xiao
    Guang-long Li
    Ying-dong Qu
    Rong-de Li
    ChinaFoundry, 2023, 20 (01) : 71 - 77
12345