SOME ASPECTS OF ESTIMATION ACCURACY OF MEAN TRUE INTERLLAMELAR SPACING

Authors

  • Andrzej Czarski AGH University of Science and Technology, Faculty of Metals Engineering and Industrial Computer Science, Kraków, Poland
  • Piotr Matusiewicz AGH University of Science and Technology, Faculty of Metals Engineering and Industrial Computer Science, Kraków, Poland

DOI:

https://doi.org/10.7494/mafe.2012.38.2.133

Keywords:

true interllamelar spacing, lamellar microstructure, stereology

Abstract

Lamellar microstructures are characterized by interlamellar spacings: random, apparent and true. The mean value of true interlamellar spacing can be estimated by measurements of apparent spacings, random spacings or by counting number of intersections the secant with plates. In this paper the statistical errors in true interlamellar spacing measurements has been determined and discussed using the example of pearlite in eutectoid steel. The accuracy of estimation of true interlamellar spacing using all the methods is comparable and sufficient.

Downloads

Download data is not yet available.

References

Hillert M.: The formation of pearlite, in: V.F. Zakay, H.I. Aaronson (Eds.), Decomposition of austenite by diffusional processes, New York, NY Interscience, 1962, pp. 197-237

Hackney S.A., Shiflet G.J.: Pearlite growth mechanizm. Acta Metall., 35 (1987) 1019-1028

Doi S.N., Kestenbach H-J.: Determination of the pearlite nodule size in eutectoid steels. Metallography, 23 (1989) 135-146

Underwood E.E.: Quantitative Stereology. Addison-Weseley, 1970

DeHoff R.T., Rhines F.N.: Quantitative Microscopy. New York, McGraw-Hill, 1968

Vander Voort G.F., Roosz A.: Measurement of the interlamellar spacing of pearlite. Metallography, 17 (1984) 1-17

Ikeda T., Ravi V.A., Snyder G.J.: Evaluation of true interlamellar spacing from microstructural observations. Journal of Materials Research, 23 (2008) 2538-2544

Elwazri A.M., Wanjara P., Yue S.: Measurement of pearlite interlamellar spacing in hypereutectoid steel. Materials Characterization, 54 (2005) 473-478

Matusiewicz P., Czarski A., Adrian H.: Quantitative Microstructure Analysis with SigmaScanPro. Proc. of 9th ECSIA & 7th Stermat, (2005) 131-138

Czarski A., Głowacz E.: Relationship between mean values of interlamellar spacings in Case of Lamellar Microstructure Like Pearlite. Archives of Metallurgy and Materials, 55 (2010) 101-105

Lafond C., Moliexe F.: Some metallurgical applications of stereometry, Practical Metallography, spec. iss., 5 (1975) 200-223

Camard P., Chermant J.L., Coster M.: Morphology of an imbricate structure. Practical Metallography, spec. iss. 8 (1978) 126-132

Stiebler K., Otte B., Frebel M., Nembach E.: Investigation of periodic lamellar substructures by laser beam diffraction. Mat. Sc. and Eng., 56 (1982) 203-209

Fitta G.: Diffraction method for quantitative analysis of platelet-type structures (in Polish). AGH – Wydz. Metalurgiczny, Kraków, 1985 (PhD thesis)

Gensamer M., Pearsall E.B., Pellini W.S., Low J.R.: Tensile properties of pearlite, bainite and spheroidite. Trans. ASM, 30 (1942) 983-1020

Saltykov S.A.: Stereometric Metallography. 3rd Edition, Metallurgia, Moscow, 1970

Ryś J., Czarski A.: Quantitative analysis of lamellar structure. Proc. of IV Symposium on Metallography, Vysoke Tatry, Czechoslovakia, 1 (1986) 25-30

Czarski A., Ryś J.: Stereological realitonships for lamelar structure. Acta Stereologica, 6 (1987) 567-572

Chattopadhyay S., Sellars C.M.: Quantitative measurements of pearlite spheroidization. Metallography, 10 (1977) 89-105

Chojnowski E.A., Tegart W.J.: Accelerated spheroidization of pearlite. Metal Sc. J., 2 (1968) 14-18

Downloads

Published

2012-12-31

How to Cite

Czarski, A., & Matusiewicz, P. (2012). SOME ASPECTS OF ESTIMATION ACCURACY OF MEAN TRUE INTERLLAMELAR SPACING. Metallurgy and Foundry Engineering, 38(2), 133. https://doi.org/10.7494/mafe.2012.38.2.133

Issue

Section

Articles

Most read articles by the same author(s)

1 2 > >>