Internal Friction of Materials

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Cambridge Int Science Publishing, 2001 - Science - 326 pages
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Without understanding the nature and mechanisms of an elasticity and the effect of various factors on internal friction, it is difficult to solve the problems of using internal friction measurement for evaluating the structural stability of alloys, cyclic microplasticity and for better understanding the processes associated with the response of materials to single or repeated loading. The author presents important new results for the relationship between internal friction and the defect of the elasticity modulus with many principal processes such as plastic deformation, effect of temperature of plastic deformation, effects on the structural stability of alloys and composites up to cyclic microplasticity. The existence of critical strain amplitudes is discussed and supported by experiments, and attention is given to the link of cyclic microplasticity with dislocation density and activation volume of plastic deformation up to the effect of individual factors on the cyclic plastic response of the material. The relationship of the process of mechanical fatigue of the material with internal friction and the defect of the elasticity modulus is discussed. The author proposes a new fatigue life equation which has been verified by a large number of experiments.
 

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Contents

AIMS OF INTERNAL FRICTION MEASUREMENTS
1
FACTORS AFFECTING ANELASTICITY
79
MEASUREMENTS OF INTERNAL FRICTION AND
133
N Simpson and I Pearson Prib Nauchn Issled No 4 19 1979
143
B K Kardasev S P Nikanorov FTT No 13 160 1971
154
A Puškár Strojirenstvi 2929292929 No 11 684 1979
160
STRUCTURAL INSTABILITY OF ALLOYS
181
CYCLIC MICROPLASTICITY
234
References
315
Index
325
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