Effect of mean stress on cyclic stress-strain response of copper single crystals

被引：0
|
作者：
Lukás, P [1 ]
Kunz, L [1 ]
Svoboda, M [1 ]
机构：
[1] Acad Sci Czech Republ, Inst Phys Mat, Brno, Czech Republic
来源：
FATIGUE '99: PROCEEDINGS OF THE SEVENTH INTERNATIONAL FATIGUE CONGRESS, VOLS 1-4 | 1999年
关键词：
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Copper single crystals oriented for single slip were cyclically loaded under load control with a non-zero mean stress. Contrary to symmetrical strain controlled tests there is no plateau at the cyclic stress-strain plot and there are no persistent slip bands in the dislocation structure. The microcracks initiate - as in case of symmetrical cycling - at the surface coarse slip markings having a sharp notch-peak topography. This leads to the conclusion that the persistent slip bands do not always play the crucial role in the initiation of fatigue microcracks.
引用
收藏
页码：115 / 122
页数：8
相关论文
共 50 条
  • [41] CYCLIC STRESS-STRAIN RESPONSE OF POLYCRYSTALLINE COPPER IN A WIDE-RANGE OF PLASTIC STRAIN AMPLITUDES
    POLAK, J
    OBRTLIK, K
    HAJEK, M
    VASEK, A
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1992, 151 (01): : 19 - 27
  • [42] Effect of Low Temperature on Fatigue Life and Cyclic Stress-Strain Response of Ultrafine-Grained Copper
    P. LUKÁŠ
    L. KUNZ
    M. SVOBODA
    Metallurgical and Materials Transactions A, 2007, 38 : 1910 - 1915
  • [43] Effect of low temperature on fatigue life and cyclic stress-strain response of ultrafine-grained copper
    Lukas, P.
    Kunz, L.
    Svoboda, M.
    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2007, 38A (09): : 1910 - 1915
  • [44] Effect of grain size/texture on the cyclic stress-strain behavior of polycrystalline copper
    Sun Yat-Sen Univ, Kaohsiung, Taiwan
    Mater Sci Eng A Struct Mater Prop Microstruct Process, 1-2 (18-24):
  • [45] Effect of component crystal orientations on the cyclic stress-strain behavior of copper bicrystals
    Zhang, ZF
    Wang, ZG
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1998, 255 (1-2): : 148 - 153
  • [46] Effect of grain size/texture on the cyclic stress-strain behavior of polycrystalline copper
    Luoh, T
    Chang, CP
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1998, 256 (1-2): : 18 - 24
  • [47] EFFECT OF LOADING RAMP ON CYCLIC STRESS-STRAIN RESPONSE AND CYCLIC CREEP-BEHAVIOR
    LUKAS, P
    KUNZ, L
    KONG, S
    WEISS, B
    STICKLER, R
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1994, 174 (01): : 15 - 21
  • [48] CYCLIC STRESS RELAXATION IN COPPER SINGLE CRYSTALS
    CHENG, CY
    KOCKS, UF
    JOURNAL OF METALS, 1969, 21 (03): : A53 - &
  • [49] CYCLIC STRESS-STRAIN RESPONSE OF ALUMINUM-4 WT-PERCENT COPPER ALLOY SINGLE-CRYSTALS CONTAINING THETA'' PRECIPITATES
    LEE, JK
    LAIRD, C
    JOURNAL OF METALS, 1981, 33 (09): : A23 - A23
  • [50] Relationship between cyclic stress-strain response and substructure
    Plumtree, A
    Abdel-Raouf, HA
    LOW CYCLE FATIGUE AND ELASTO-PLASTIC BEHAVIOUR OF MATERIALS, 1998, : 279 - 284
12345