Deformation Behavior and Microstructure of 6061 Aluminum Alloy Processed by Severe Plastic Deformation Using Biaxial Alternate Forging

被引:1
|
作者
Ha, Seong-Ho [1 ]
Shin, Young-Chul [1 ]
机构
[1] Korea Inst Ind Technol, Incheon 21999, South Korea
关键词
biaxial alternate forging; severe plastic deformation; FEM; AA6061; mechanical property; AL-MG ALLOY; STRENGTH; DUCTILITY; HOT;
D O I
10.3390/ma17050968
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The deformation behavior and microstructure of 6061 aluminum alloy processed by severe plastic deformation (SPD) using biaxial alternate forging that can evaluate the forming limit and mechanical properties of alloys, simultaneously, were investigated in this study. A finite element (FE) analysis on the biaxial alternating forging process, considering the strain-hardening coefficient and forging pass of the material, was conducted. When the strain-hardening coefficient is 0, an average effective strain of 440% was found within a diameter of 4 mm in the core of the workpiece after eight passes, while it was 300% at the same pass number when the strain-hardening coefficient was 0.2. The average effective strain estimated from the FE analysis was about 264% after eight passes of forging, which is considered to be a level of SPD that significantly exceeds the elongation of the raw material. As a result of the tensile test according to the forging pass, after two passes, the strength of the material could be gradually improved without significant degradation of elongation. Even though a large strain of 264% was found after eight passes were applied, deformed grains and twins with no recrystallized structure in optical microstructures with different forging passes were found.
引用
收藏
页数:16
相关论文
共 50 条
  • [21] MECHANICAL PROPERTIES OF ALUMINUM PROCESSED BY SEVERE PLASTIC DEFORMATION
    Comanici, Adrian
    Comaneci, Radu
    MODTECH 2011: NEW FACE OF T.M.C.R., VOL I AND II, 2011, : 281 - 284
  • [22] Microstructure and strength of metals processed by severe plastic deformation
    Gubicza, Jen
    Chinh, Nguyen Quang
    Langdon, Terence G.
    Ungar, Tamas
    ULTRAFINE GRAINED MATERIALS IV, 2006, : 231 - +
  • [23] Stability of microstructure in silver processed by severe plastic deformation
    Gubicza, Jeno
    Chinh, Nguyen Q.
    Labar, Janos L.
    Tichy, Geza
    Hegedus, Zoltan
    Xu, Cheng
    Langdon, Terence G.
    INTERNATIONAL JOURNAL OF MATERIALS RESEARCH, 2009, 100 (06) : 884 - 887
  • [24] Microstructure characterization of high-purity aluminum processed by dynamic severe plastic deformation
    Dirras, Guy
    Chauveau, Thierry
    Abdul-Latif, Akrum
    Ramtani, Salah
    Bui, Quang-Hien
    PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 2010, 207 (10): : 2233 - 2237
  • [25] Effect of severe plastic deformation on mechanical properties and microstructure in 7075 aluminum alloy
    Kuramoto, Shigeru
    Horibuchi, Kayo
    Aoi, Ichiro
    Oh-Ishi, Keiichiro
    Keikinzoku/Journal of Japan Institute of Light Metals, 2014, 64 (06): : 241 - 248
  • [26] HOT DEFORMATION BEHAVIOR OF Mg-Zn-Al ALLOY TUBE PROCESSED BY SEVERE PLASTIC DEFORMATION
    Fata, A.
    Faraji, G.
    Mashhadi, M. M.
    Tavakkoli, V.
    ARCHIVES OF METALLURGY AND MATERIALS, 2017, 62 (01) : 159 - 166
  • [27] Grain boundary sliding in a superplastic zinc-aluminum alloy processed using severe plastic deformation
    Kawasaki, Megumi
    Langdon, Terence G.
    MATERIALS TRANSACTIONS, 2008, 49 (01) : 84 - 89
  • [28] Microstructure and flow stress modelling during plastic deformation of an aluminum alloy type A6061
    Kreyca, J.
    Falahati, A.
    Kozeschnik, E.
    MATERIALS TODAY-PROCEEDINGS, 2015, 2 : S107 - S112
  • [29] Grain refinement and Lattice Imperfections in Commercial Aluminum Alloy Processed by Severe Plastic Deformation
    Charfeddine, Saifeddine
    Zehani, Karim
    Besais, Lotfi
    Korchef, Atef
    2014 GLOBAL CONFERENCE ON POLYMER AND COMPOSITE MATERIALS (PCM 2014), 2014, 62
  • [30] Mechanical properties of a spray-cast aluminum alloy processed by severe plastic deformation
    Xu, Cheng
    Kawasaki, Megumi
    Furukawa, Minoru
    Horita, Zenji
    Langdon, Terence G.
    THERMEC 2006, PTS 1-5, 2007, 539-543 : 141 - +