Internal friction peak in bicrystals with different misorientations

被引：20
|
作者：
Shi, Y
Cui, P
Kong, QP [1 ]
Jiang, WB
Winning, M
机构：
[1] Acad Sinica, Inst Solid State Phys, Hefei 230031, Peoples R China
[2] Rhein Westfal TH Aachen, Inst Met Kunde & Met Phys, D-52056 Aachen, Germany
来源：
PHYSICAL REVIEW B | 2005年 / 71卷 / 06期
关键词：
D O I：
10.1103/PhysRevB.71.060101
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The internal friction in pure aluminum bicrystals with misorientation angles ranging from 5.8 degrees to 44.0 degrees has been investigated. A substantial internal friction peak associated with a grain boundary (GB) appears at medium temperature in each of the bicrystals. The activation parameters of the peak reveal a distinct transition from low- to high-angle boundaries, indicating a structural transition. The difference in activation parameters between low- and high-angle GBs is interpreted by different mechanisms of internal friction.
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页数：4
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