Stress State Localized Analysis on the Tip of the Crack

Article Preview

Abstract:

In this paper is presented a study of the analysis of the stress state of micro specimens exposed to a load inside the column of a High Voltage Electron Microscope (HVTEM), in particular for a Mo single crystal. The experimental tangential stresses distribution images were obtained and compared with theoretical calculations using Naiber approach, obtaining an excellent match.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

87-95

Citation:

Online since:

September 2010

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2010 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] G.F. Sarzhan, V.I. Trefilov, S.A. Firstov: Fizicheskiye osnovy v tonkij folgaj tugiplavkij metallov. FMM. (1974), T. 38. N1. pp.76-82.

Google Scholar

[2] D.W. Pashley: A study of the deformation and fracture of single crystal gold films of high strength inside an electron microscope. /Proc. Of Royal Soc. Vol. 255. (1960). N1281. pp.218-231.

DOI: 10.1098/rspa.1960.0064

Google Scholar

[3] C.C., Barret, T.B. Massalsky: Structure of metals. Struktura Metallov, Part 1. Edit. Metallurgia, (1984). p.352.

Google Scholar

[4] Andrew L., Dayson D: Electronogramy i ij interpretatsii,. Edit. MIR. 1971. p.256.

Google Scholar

[5] N.W. Schadler: Mobility of edge dislocations on {110} planes in tungsten single crystals. / Act. Met. (1964). V12. N8. pp.861-870.

DOI: 10.1016/0001-6160(64)90144-0

Google Scholar

[6] Pedro Tamayo Meza, Pablo Schabes-Retchkiman, Viacheslav Yermishkin: Deformation behavior of molybdenum single crystals as obtained from quasirelaxation in situ, experiments in a high- voltage TEM. RLMM, LatinAmerican Journal of Metallurgy and Materials, (2009).

Google Scholar

[7] D. Cowley: Fizika Difraktsii. M: MIR, (1979). P. 431.

Google Scholar

[8] G. De Witt, J.S. Kohler: Interaction of dislocation with an applied stress in anisotropic crystals. /Phys. Rev (1959). V116. N5. pp.1113-1120.

Google Scholar

[9] D. Hirth, I. Lotte: Theory of Dislocation. M. Atomizdat. (1972). p.599.

Google Scholar

[10] F. Appel, U. Messerschmidt: The estimation of the effective stress in Aluminium foils deformed in the high voltage electron microscope. / Phys. Status Sol (a), (1976). V. 34. N1. pp.175-181.

DOI: 10.1002/pssa.2210340115

Google Scholar

[11] V.K. Pare, J.C. Crump: Equilibrium configurations of dislocations under stress: compression of experimental observations with theory. / Jour. Appl. Phys. (1969). V. 40. N. 2. pp.790-793.

DOI: 10.1063/1.1657464

Google Scholar

[12] S. Kabayashi, S.M. Ohr: In situ fracture experiments in BCC metals. /Phil. Mag. A. (1980). V. 42. N6. pp.763-772.

Google Scholar

[13] S.M. Ohr, S.J. Chang: Dislocation-free zone model of fracture compression with experiments. / Jour. of Appl. Phys. 1982. V53. N8. pp.5645-5651.

DOI: 10.1063/1.331448

Google Scholar

[14] A. A. Ostsemin and P. B. Utkin: Journal of Applied Mechanics and Technical Physics 50 (2009), p.99.

Google Scholar