DETERMINATION OF THE DISTRIBUTION OF HYDROGEN NEAR CRACKLIKE DEFECTS

被引：3

作者：

Stashchuk, M. H. ^{[1
]}

机构：

[1] Ukrainian Natl Acad Sci, Karpenko Physicomech Inst, Lvov, Ukraine

来源：

MATERIALS SCIENCE | 2017年 / 52卷 / 06期

关键词：

redistribution of hydrogen; diffusion equation; hydrostatic stresses; elliptic hole; crack;

D O I：

10.1007/s11003-017-0024-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present the equation of diffusion running in the process of deformation of a body with regard for the corresponding hydrogen flow caused both by the external mechanical loads and the stresses induced by the hydrogenation of the metal weakened by a smooth (or cracklike) defect. Closed analytic solutions are obtained in the quasistationary case of weakly varying stresses. We also reveal the redistribution of hydrogen initiated by the presence of elliptic holes and cracklike defects with process zones.

引用

页码：803 / 810

页数：8

共 24 条

[1]

Andreikiv OYe, 2008, FRACTURE MECH DURABI

[2]

[Anonymous], INTERACTION HYDROGEN

[3] The effect of hydrogen concentration on fracture of pipeline steels in presence of a notch [J].

Capelle, J. ;

Gilgert, J. ;

Dmytrakh, I. ;

Pluvinage, G. .

ENGINEERING FRACTURE MECHANICS, 2011, 78 (02) :364-373

[4]

Gol'tsov V.A., 2009, NAUK PRATSI DONNTU M, P165

[5] EVALUATION OF THE CONCENTRATION OF HYDROGEN IN THE PROCESS ZONE NEAR THE CRACK TIP [J].

Ivanyts'kyi, Ya. L. ;

Hembara, O. V. ;

Smiyan, O. D. ;

Kowalik, M. .

MATERIALS SCIENCE, 2011, 46 (06) :769-774

[6] Hydrogen influence on fracture of sheet carbon steel [J].

Ivanytskyj, Yaroslav ;

Shtayura, Stepan ;

Molkov, Yuriy ;

Lenkovskiy, Taras .

INTERNATIONAL JOURNAL OF FRACTURE, 2012, 176 (01) :17-23

[7] DIAGNOSTICS OF HYDROGEN MACRODELAMINATION IN THE WALL OF A BENT PIPE IN THE SYSTEM OF GAS MAINS [J].

Kharchenko, L. E. ;

Kunta, O. E. ;

Zvirko, O. I. ;

Savula, R. S. ;

Duryahina, Z. A. .

MATERIALS SCIENCE, 2016, 51 (04) :530-537

[8]

Kolachev B.A., 1989, ITOGI NAUK TEKH MET, V23, P3

[9] Estimation of the serviceability of oil and gas pipelines after long-term operation according to the parameters of their defectiveness [J].

Kryzhanivs'kyi, E. I. ;

Hrabovs'kyi, R. S. ;

Mandryk, O. M. .

MATERIALS SCIENCE, 2013, 49 (01) :117-123

[10]

Martinson L. K., 2002, DIFFERENTIAL EQUATIO

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