SPECIFIC FEATURES OF FRACTURE OF HIGH-STRENGTH BOLTS OF VT22 ALLOY

被引：2
|
作者：
Ivasyshyn, O. M. [1 ]
Vasylevs'kyi, E. T. [2 ]
Antonyuk, S. L. [2 ]
Velychko, V. V. [2 ]
Markovs'kyi, P. E. [1 ]
Havrysh, I. M. [2 ]
机构：
[1] Natl Acad Sci Ukraine, Kurdyumov Inst Met Phys, Kiev, Ukraine
[2] ANTONOV State Enterprise, Kiev, Ukraine
来源：
MATERIALS SCIENCE | 2015年 / 51卷 / 03期
关键词：
VT22 titanium alloy; high-strength bolts; mechanical characteristics; intense hot plastic deformation; heat treatment; BETA-TITANIUM ALLOYS;
D O I：
10.1007/s11003-015-9850-8
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
An experimental batch of connecting M12 bolts for aerospace application was produced by the method of rapid heat treatment with hot heading from the rods of VT22 alloy obtained as a result of intense hot plastic deformation (step-by-step forging and rolling). After final aging in the course of tensile tests, the bolts had the following characteristics: the yield and ultimate strengths equal to 1380 and 1455 MPa, respectively, a relative elongation of 7.2%, and a relative narrowing of 24.3%. The tests carried out according to the program developed at the "ANTONOV" State Enterprise showed that the fatigue and low-cycle fatigue are almost two times higher in the case of thread rolling performed in the completely thermally hardened state, i.e., after final aging. We also established the possibility of enhancement of the fatigue characteristics of the bolts by improving the technology of mechanical treatment.
引用
收藏
页码：366 / 371
页数：6
相关论文
共 50 条
  • [1] Specific Features of Fracture of High-Strength Bolts of VT22 Alloy
    О. М. Ivasyshyn
    E. T. Vasylevs’kyi
    S. L. Antonyuk
    V. V. Velychko
    P. E. Markovs’kyi
    І. М. Havrysh
    Materials Science, 2015, 51 : 366 - 371
  • [2] Studying the Compactibility of the VT22 High-Strength Alloy Powder Obtained by the PREP Method
    Kryuchkov, D. I.
    Berezin, I. M.
    Nesterenko, A. V.
    Zalazinsky, A. G.
    Vichuzhanin, D. I.
    MECHANICS, RESOURCE AND DIAGNOSTICS OF MATERIALS AND STRUCTURES (MRDMS-2017), 2017, 1915
  • [3] PHASE COMPOSITION AND FATIGUE-STRENGTH OF ALLOY VT22
    GRINBERG, NM
    ZMEEVETS, SG
    OSTAPENKO, IL
    METAL SCIENCE AND HEAT TREATMENT, 1976, 18 (11-1) : 1016 - 1020
  • [4] INFLUENCE OF INITIAL STRUCTURE ON BETA-SOLID SOLUTION PRECIPITATION CHARACTER IN HIGH-STRENGTH TITANIUM VT22 ALLOY
    NOTKIN, AB
    KOROBOV, OS
    PERTSOVSKIY, NZ
    POLKIN, IS
    SEMENOVA, NM
    SMOLYAKOVA, LA
    FIZIKA METALLOV I METALLOVEDENIE, 1982, 54 (04): : 755 - 761
  • [5] Structure, strength, and plasticity of semifinished products of VT22 titanium alloy
    O. V. Abolikhina
    S. L. Antonyuk
    O. H. Molyar
    Materials Science, 2008, 44 : 400 - 404
  • [6] Structure, strength, and plasticity of semifinished products of VT22 titanium alloy
    Abolikhina, O. V.
    Antonyuk, S. L.
    Molyar, O. H.
    MATERIALS SCIENCE, 2008, 44 (03) : 400 - 404
  • [7] Heat treatment of granulated VT22 alloy
    Moiseev, VN
    Sysoeva, NV
    Ermolova, MI
    METAL SCIENCE AND HEAT TREATMENT, 1996, 38 (1-2) : 42 - 45
  • [8] Heat Treatment of Granulated VT22 Alloy
    Met Sci, 1-2 (42):
  • [9] CHANGE IN ALLOY ELEMENT AND IMPURITY CONTENT ON THE FRACTURE SURFACE OF VT22 ALLOY SPECIMENS WITH DIFFERENT STRUCTURES
    POLKIN, IS
    ISHUNKINA, TV
    REDKIN, VS
    CHASNIKOV, AI
    TKACHENKO, EA
    METAL SCIENCE AND HEAT TREATMENT, 1991, 33 (11-12) : 932 - 934
  • [10] Corrosion fatigue resistance of VT22 alloy in High-frequency tensioncompression
    Andreicha, Yu.A.
    Troyan, I.A.
    Strength of materials, 1988, : 467 - 470
12345