发明名称 |
PROCESS INVESTIGATING PROPERTIES OF MATERIAL OF ARTICLE |
摘要 |
FIELD: nondestructive acoustic method of examination of physical and mechanical properties of materials. SUBSTANCE: given process includes loading of standard and tested articles with indenter with change of indentation depth by means of its movement along arc of circle, recording of signals of acoustic emission and evaluation of properties of material with the aid of comparison of signal parameters by separation criterion Ks from standard and tested articles found by dependence Ks = lg(Ec/tau<SP>2</SP>), where Ec is energy of pulses, tau is duration of pulses. EFFECT: enhanced accuracy of investigation of properties of material of article and expanded technological capabilities of process. 8 dwg, 2 tbl
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申请公布号 |
RU2140075(C1) |
申请公布日期 |
1999.10.20 |
申请号 |
RU19980113762 |
申请日期 |
1998.07.09 |
申请人 |
IJ UNIVERSITET;INSTITUT MASHINOVEDENIJA I METALLURGII DVO RAN;INST MASH I METALLURG DVO RAN |
发明人 |
SEMASHKO N.A.;MOKRITSKAJA E.B.;MOKRITSKIJ B.JA.;SELEZNEV V.V.;FROLOV D.N. |
分类号 |
G01N29/14;G01N3/00;G01N19/04;(IPC1-7):G01N29/14 |
主分类号 |
G01N29/14 |
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地址 |
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