Synergy effect of Si addition and pre-straining on microstructure and properties of Al-Cu-Mg alloys with a medium Cu/Mg ratio

被引：22
作者：
Li, Jiyu [1 ,3 ]
Chen, Songyi [1 ,2 ,3 ]
Li, Fushan [1 ,3 ]
Chen, Kanghua [1 ,3 ]
Huang, Lanping [3 ]
机构：
[1] Cent S Univ, Light Alloy Res Inst, Changsha 410083, Hunan, Peoples R China
[2] Cent S Univ, State Key Lab High Performance Complex Mfg, Changsha 410083, Hunan, Peoples R China
[3] Cent S Univ, Collaborat Innovat Ctr Adv Nonferrous Struct Mat, Changsha 410083, Hunan, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2019年 / 767卷
关键词：
Al-Cu-Mg alloys; Si; Pre-straining; Microstructure; Properties; MECHANICAL-PROPERTIES; AGING BEHAVIOR; STRENGTHENING MECHANISMS; PRECIPITATION PROCESSES; PLASTIC-DEFORMATION; COLD DEFORMATION; AG; AL-CU-MG-(AG);
D O I：
10.1016/j.msea.2019.138429
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The synergy effect of Si addition and pre-straining prior to artificial aging heat treatment on microstructure and mechanical properties of Al-Cu-Mg alloys with a medium Cu/Mg ratio have been investigated by Vickers hardness, room temperature tensile test combined with X-ray diffraction and transmission electron microscopy characterization. It is indicated that the strength was greatly enhanced via adding Si and introducing prestraining due to the formation finer theta' precipitates. The pre-straining was more effective for Si-free alloys on improving strength compared with Si-containing alloys. The combined mechanism of Si addition and prestraining has been discussed in detail.
引用
收藏
页数：7
相关论文
共 50 条
  • [21] The effect of Cu and Mg content on mechanical properties of Al-Cu-Mg alloys with and without Ag additions
    Cassada, WA
    Bartholomeusz, MF
    ALUMINIUM ALLOYS: THEIR PHYSICAL AND MECHANICAL PROPERTIES, PTS 1-3, 1996, 217 : 1765 - 1770
  • [22] Significant hardness enhancement in an Al-Cu-Mg alloy with high Cu:Mg ratio by microalloying with Si and Ge
    Castro-Riglos, Victoria
    Morello, Nicolas
    Tolley, Alfredo
    MATERIALIA, 2018, 4 : 255 - 259
  • [23] The influence of Cu/Mg atomic ratios on precipitation scenarios and mechanical properties of Al-Cu-Mg alloys
    Liu, J. Z.
    Yang, S. S.
    Wang, S. B.
    Chen, J. H.
    Wu, C. L.
    JOURNAL OF ALLOYS AND COMPOUNDS, 2014, 613 : 139 - 142
  • [24] Effect of Aging Heat Treatment on Microstructure and Properties of Al-Cu-Mg Alloy
    Agrawal, Mitushi
    Mittal, Gaurav
    Patel, Nikunj
    Pradhan, Ajaya Kumar
    METALLOGRAPHY MICROSTRUCTURE AND ANALYSIS, 2024, 13 (03) : 443 - 451
  • [25] Effect of plastic deformation on the ageing behaviour of an Al-Cu-Mg alloy with a high Cu/Mg ratio
    Zuiko, Ivan
    Kaibyshev, Rustam
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2018, 737 : 401 - 412
  • [26] Effects of La addition on the microstructure and tensile properties of Al-Si-Cu-Mg casting alloys
    Lu, Tao
    Pan, Ye
    Wu, Ji-li
    Tao, Shi-wen
    Chen, Yu
    INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS, 2015, 22 (04) : 405 - 410
  • [27] EFFECT OF MG AND ZN CONTENTS ON THE MICROSTRUCTURES AND MECHANICAL PROPERTIES OF AL-SI-CU-MG ALLOYS
    Nemri, Y.
    Chiker, N.
    Gueddouar, B.
    Benamar, M. E. A.
    Sahraoui, T.
    Hadji, M.
    INTERNATIONAL JOURNAL OF METALCASTING, 2018, 12 (01) : 20 - 27
  • [28] Effects of Cu Addition and Spheroidization Treatment on Microstructure and Mechanical Properties of Al–Si–Cu–Mg–Ti–Zr–Sr Alloys
    Hao Liu
    Wenru Hu
    Yafei Pang
    Mingkun Qiu
    Xiaodong Du
    International Journal of Metalcasting, 2024, 18 : 1401 - 1413
  • [29] Effect of Zn addition on the microstructure, texture evolution and mechanical properties of Al-Mg-Si-Cu alloys
    Wang, Xiaofeng
    Guo, Mingxing
    Zhang, Jishan
    Zhuang, Linzhong
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2016, 677 : 522 - 533
  • [30] Ageing processes in Al-Cu-Mg alloys with different Cu/Mg ratios
    Macchi, C.
    Somoza, A.
    Ferragut, R.
    Dupasquier, A.
    Polmear, I. J.
    PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 6, NO 11, 2009, 6 (11): : 2322 - +
12345