Principles of processing of an ultrafine-grained structure in large - section billets

被引：7
作者：
Imayev, R. M. [1 ]
Nazarov, A. A. [1 ]
Mulyukov, R. R. [1 ]
Khasanova, G. F. [1 ]
Galeyev, R. M. [1 ]
Valiakhmetov, O. R. [1 ]
机构：
[1] RAS, Inst Met Superplast Problems, 39 Khalturin St, Ufa 450001, Russia
来源：
LETTERS ON MATERIALS-PIS MA O MATERIALAKH | 2014年 / 4卷 / 04期
关键词：
multiple isothermal forging; severe plastic deformation; ultrafine grained and nanostructured materials; dynamic recrystallization; grain refinement;
D O I：
10.22226/2410-3535-2014-4-295-301
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Summarizing the results of the studies performed at IMSP RAS, the principles of processing of a uniform ultrafine-grained (UFG) structure in large-section billets by means of the technique of multiple isothermal forging are formulated. These principles imply a uniform introduction of plastic strain energy into large-section billets, minimization of contact friction between the die-set and the billets, and deformation processing in the temperature and strain-rate conditions that are most favourable for the development of dynamic recrystallization.
引用
收藏
页码：295 / 301
页数：7
相关论文
共 29 条
  • [1] AKHMADEYEV NA, 1992, METALS, V5, P96
  • [2] BELYAKOV AN, 1994, FIZ MET METALLOVED+, V78, P130
  • [3] Dobatkin S.V., 2006, FIZ TEKH VYS DAVLENI, V16, P23
  • [4] The effect of strain path on the development of deformation structures in severely deformed aluminium alloys processed by ECAE
    Gholinia, A
    Prangnell, PB
    Markushev, MV
    [J]. ACTA MATERIALIA, 2000, 48 (05) : 1115 - 1130
  • [5] GOTTSTEIN G, 1991, MATER SCI TECH SER, V7, P158, DOI 10.1179/026708391790194879
  • [6] Imayev R., 1995, J STOBRAVA MAT SCI E, P128
  • [7] MECHANICAL-BEHAVIOR OF TIAL SUBMICROCRYSTALLINE INTERMETALLIC COMPOUND AT ELEVATED-TEMPERATURES
    IMAYEV, RM
    IMAYEV, VM
    [J]. SCRIPTA METALLURGICA ET MATERIALIA, 1991, 25 (09): : 2041 - 2046
  • [8] FORMATION OF SUBMICROCRYSTALLINE STRUCTURE IN TIAL INTERMETALLIC COMPOUND
    IMAYEV, RM
    IMAYEV, VM
    SALISHCHEV, GA
    [J]. JOURNAL OF MATERIALS SCIENCE, 1992, 27 (16) : 4465 - 4471
  • [9] Low-temperature superplasticity of titanium aluminides
    Imayev, RM
    Salishchev, GA
    Senkov, ON
    Imayev, VM
    Shagiev, MR
    Gabdullin, NK
    Kuznetsov, AV
    Froes, FH
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2001, 300 (1-2): : 263 - 277
  • [10] Effect of grain size and partial disordering on ductility of Ti3Al in the temperature range of 20-600°C
    Imayev, RM
    Gabdullin, NK
    Salishchev, GA
    Senkov, ON
    Imayev, VM
    Froes, FH
    [J]. ACTA MATERIALIA, 1999, 47 (06) : 1809 - 1821
123