ANALYSIS OF CREEP DATA ON COPPER AT VERY LOW STRESSES

被引:9
作者
MOHAMED, FA [1 ]
机构
[1] UNIV SO CALIF,DEPT MECH ENGN,LOS ANGELES,CA 90007
来源
MATERIALS SCIENCE AND ENGINEERING | 1979年 / 40卷 / 01期
关键词
D O I
10.1016/0025-5416(79)90013-2
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Examination of the low-stress creep data for copper shows that there is a critical grain size above which the creep rates are faster than those predicted from the classic Nabarro-Herring model. It is suggested that the fast creep rates arise from the operation of Harper-Dorn creep. Using the concept of deformation mapping, it is shown that the trend of the low-stress creep data for copper is compatible with treatment of the Harper-Dorn and Nabarro-Herring processes as independent mechanisms. © 1979.
引用
收藏
页码:101 / 104
页数:4
相关论文
共 26 条
[1]  
Amin K. E., 1970, Journal of the Mechanics and Physics of Solids, V18, P413, DOI 10.1016/0022-5096(70)90018-9
[2]   FIRST REPORT ON DEFORMATION-MECHANISM MAPS [J].
ASHBY, MF .
ACTA METALLURGICA, 1972, 20 (07) :887-+
[3]  
Askill J., 1970, TRACER DIFFUSION DAT, DOI [10.1007/978-1-4684-6075-9, DOI 10.1007/978-1-4684-6075-9]
[4]  
Ball A., 1969, MET SCI J, V3, P1, DOI [DOI 10.1179/MSC.1969.3.1.1, 10.1179/msc.1969.3.1.1]
[5]   HIGH TEMPERATURE LOW STRESS CREEP OF AL AND AL + 0.5 PERCENT FE [J].
BARRETT, CR ;
NIX, WD ;
MUEHLEISEN, EC .
MATERIALS SCIENCE AND ENGINEERING, 1972, 10 (01) :33-+
[6]  
Bird J.E., 1969, QUANTITATIVE RELATIO
[7]  
Burton B., 1970, METAL SCI J, V4, P215
[8]  
Burton B., 1977, DIFFUSIONAL CREEP PO
[10]   VISCOUS CREEP OF ALUMINUM NEAR ITS MELTING TEMPERATURE [J].
HARPER, J ;
DORN, JE .
ACTA METALLURGICA, 1957, 5 (11) :654-665