CREEP-BEHAVIOR OF DISCONTINUOUS SIC-AL COMPOSITES

被引:280
作者
MOHAMED, FA
PARK, KT
LAVERNIA, EJ
机构
[1] Materials Section, Department of Mechanical and Aerospace Engineering, University of California, Irvine
来源
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1992年 / 150卷 / 01期
关键词
D O I
10.1016/0921-5093(90)90004-M
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
A review of creep data of discontinuous SiC-Al composites (whisker and particulate) shows that the creep behavior of these composites exhibits two main characteristics: (a) the stress dependence of the steady state (or minimum) creep rate, as described by the value of the stress exponent, is high and variable and (b) the temperature dependence of the steady: state (or minimum) creep rate, which is measured by the creep activation energy, is much larger than that for self-diffusion in aluminum. These two characteristics are examined in the light of theoretical treatments describing the origin of high temperature strengthening in discontinuous metal matrix composites and dislocation models proposed for dispersion-strengthened alloys.
引用
收藏
页码:21 / 35
页数:15
相关论文
共 55 条
[21]   CREEP OF FIBROUS COMPOSITE-MATERIALS [J].
LILHOLT, H .
COMPOSITES SCIENCE AND TECHNOLOGY, 1985, 22 (04) :277-294
[22]   HIGH-TEMPERATURE CREEP OF NI-20CR-2THO-2 SINGLE-CRYSTALS [J].
LUND, RW ;
NIX, WD .
ACTA METALLURGICA, 1976, 24 (05) :469-481
[23]   HIGH CREEP ACTIVATION-ENERGIES FOR DISPERSION STRENGTHENED METALS [J].
LUND, RW ;
NIX, WD .
METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1975, 6 (07) :1329-1333
[24]   VISCOUS FLOW OF ALIGNED COMPOSITES [J].
MCLEAN, D .
JOURNAL OF MATERIALS SCIENCE, 1972, 7 (01) :98-&
[25]   STEADY STATE CREEP OF A COMPOSITE MATERIAL WITH SHORT FIBRES [J].
MILEIKO, ST .
JOURNAL OF MATERIALS SCIENCE, 1970, 5 (03) :254-&
[26]   SOME OBSERVATIONS ON THE HIGH-TEMPERATURE CREEP-BEHAVIOR OF 6061 AL-SIC COMPOSITES [J].
MISHRA, RS ;
PANDEY, AB .
METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1990, 21 (07) :2089-2090
[27]   TRANSITION FROM DISLOCATION CLIMB TO VISCOUS GLIDE IN CREEP OF SOLID-SOLUTION ALLOYS [J].
MOHAMED, FA ;
LANGDON, TG .
ACTA METALLURGICA, 1974, 22 (06) :779-788
[28]   INTERPRETATION OF SUPERPLASTIC FLOW IN TERMS OF A THRESHOLD STRESS [J].
MOHAMED, FA .
JOURNAL OF MATERIALS SCIENCE, 1983, 18 (02) :582-592
[29]   INCORPORATION OF THE SUZUKI AND THE FISHER INTERACTIONS IN THE ANALYSIS OF CREEP-BEHAVIOR OF SOLID-SOLUTION ALLOYS [J].
MOHAMED, FA .
MATERIALS SCIENCE AND ENGINEERING, 1983, 61 (02) :149-165
[30]   2ND STAGE CREEP OF SIC WHISKER 6061 ALUMINUM COMPOSITE AT 573K [J].
MORIMOTO, T ;
YAMAOKA, T ;
LILHOLT, H ;
TAYA, M .
JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME, 1988, 110 (02) :70-76