INTRINSIC DEFORMATION PROPERTIES OF ICOSAHEDRAL AL-PD-MN SINGLE QUASI-CRYSTALS

被引:68
作者
FEUERBACHER, M [1 ]
BAUFELD, B [1 ]
ROSENFELD, R [1 ]
BARTSCH, M [1 ]
HANKE, G [1 ]
BEYSS, M [1 ]
WOLLGARTEN, M [1 ]
MESSERSCHMIDT, U [1 ]
URBAN, K [1 ]
机构
[1] MAX PLANCK INST MIKROSTRUKTURPHYS,D-06120 HALLE,GERMANY
关键词
D O I
10.1080/09500839508241000
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Plastic deformation experiments were performed on icosahedral Al-Pd-Mn single-quasicrystals to determine the thermodynamic activation parameters of the deformation process. The stress exponent and the strain-rate sensitivity of the flow stress were obtained by means of stress relaxation experiments. The activation enthalpy of the deformation process was measured by temperature change experiments. In the range from 730 to 800-degrees-C a nearly constant value of about 7 eV was determined.
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页码:91 / 98
页数:8
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