Application of optical and acoustic methods for estimation of fatigue damage

被引：0
|
作者：
Mitenkov, F. M. [1 ]
Mishakin, V. V. [1 ]
Pichkov, S. N. [1 ]
Klyushnikov, V. A. [1 ]
Danilova, N. V. [1 ]
机构：
[1] Russian Acad Sci, Inst Engn Sci, Nizhni Novgorod Branch, Nizhnii Novgorod, Russia
来源：
INORGANIC MATERIALS | 2010年 / 46卷 / 15期
基金：
俄罗斯基础研究基金会;
关键词：
Elastic Wave; Fatigue Damage; High Cycle Fatigue; Acoustic Parameter; Acoustic Method;
D O I：
10.1134/S0020168510150173
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The results of the investigation of variations in the parameters of elastic wave propagation and microplastic characteristics of steels 12 (12GS) and (08Kh18N10T) during their fatigue damage are given. The characteristics of microplastic deformations (density of microzones subjected to plastic deformations and average value of microplastic deformations) are determined using an optical method with a help of a portable SPECTR-MET metallograpic complex. Attenuation and propagation velocities of bulk transverse and longitudinal elastic waves are shown to be sensitive to structural variations at an earlier stage of alloy damage. The degree of damage to the analyzed materials before formation of a macrocrack is estimated using a combination of an acoustic and an optical method of nondestructive testing.
引用
收藏
页码：1696 / 1701
页数：6
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