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Microhardness Anisotropy and the Indentation Size Effect (ISE) on the (100) of Single Crystal NiAl

Published online by Cambridge University Press:  21 March 2011

M.E. Stevenson ,
M.L. Weaver  and
R.C. Bradt
M.E. Stevenson
Affiliation:
Department of Metallurgical and Materials Engineering, The University of Alabama, Tuscaloosa, AL 35487–0202, USA
M.L. Weaver
Affiliation:
Department of Metallurgical and Materials Engineering, The University of Alabama, Tuscaloosa, AL 35487–0202, USA
R.C. Bradt
Affiliation:
Department of Metallurgical and Materials Engineering, The University of Alabama, Tuscaloosa, AL 35487–0202, USA
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Abstract

The Knoop microhardness anisotropy of single crystal NiAl, a B2 intermetallic compound, was investigated on the (001) plane at indentation test loads from 25 to 500 g. An energy balance analysis was applied to analyze the indentation size effect (ISE). The load independent, orientation independent Knoop microhardness was determined to be 220 kg/mm2 for the (100) plane of NiAl.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 646 , 2000 , N6.4.1
Copyright
Copyright © Materials Research Society 2001

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References

REFERENCES

1. Bystrzycki, J. and Varin, R.A., “The Frictional Component in Microhardness Testing of Intermetallics”. Scripta Metallurgica et Materiala, 1993. 29: p. 605–609.Google Scholar
2. Daniels, F.W. and Dunn, C.G., “The effect of orientation on Knoop hardness of Single crystals of zinc and silicon ferrite”. Transactions of ASM, 1949. 41: p. 419–422.Google Scholar
3. Tate, D.R., “A comparison of microhardness indentation tests”. Transactions of ASM, 1945. 35: p. 374–375.Google Scholar
4. Ghosh, A., et al., “The frictional component of the ISE in microhardness testing”. Journal of Materials Research, 1993. 8: p. 1028–1032.Google Scholar
5. Hays, C. and Kendall, E.G., “An analysis of Knoop microhardness”. Metallurgy, 1973. 6: p. 275–282.Google Scholar
6. Yost, F.G., “On the Definition of Microhardness”. Metallurgical Transactions, 1983. 14: p. 947–952.Google Scholar
7. Nix, W.D. and Gao, H., “Indentation size effects in crystalline materials: A law for strain-gradient plasticity”. Journal of the Mechanics and Physics of Solids, 1998. 46(3): p. 411–425.Google Scholar
8. Li, H. and Bradt, R.C., “The effect of indentation induced cracking on the apparent microhardness”. Journal of Materials Science, 1996. 31: p. 1065–1070.Google Scholar
9. Ebrahimi, F., Gomez, A., and Hicks, T.G., “Nature of slip during knoop indentation on {100} surface of NiAl”. Scripta Metallurgica et Materials, 1996. 34(2): p. 337–342.Google Scholar
10. Quinn, J.B. and Quinn, G.D., “Indentation Brittleness of Ceramics: A fresh approach”. Journal of Materials Science, 1997. 32(16): p. 4331–4346.Google Scholar
11. Li, H. and Bradt, R.C., “Knoop Microhardness Anisotropy of Single Crystal LaB6 ”. Materials Science and Engineering A, 1991. 142: p. 51–61.Google Scholar
12. Stevenson, M.E. and Bradt, R.C., “Analysis of Microhardness Measurements”. Advanced Materials and Processes: Heat Treating Progress, 2000: p. H41–H43.Google Scholar
13. Kaji, M., Stevenson, M.E., and Bradt, R.C., To Be Published.Google Scholar
14. Shi, H. and Atkinson, M., “Afriction effect in low-load hardness testing of copper and aluminum”. Journal of Materials Science, 1990. 25(2111–2114).Google Scholar
15. Brookes, C.A. and Burnand, R.P., “Hardness Anisotropy in Crystalline Solids”, in The Science of Hardness Testing and its Research Applications, Westbrook, J., Shaw, J., and Conrad, H., Editors. 1973, ASM: Metals Park, OH.Google Scholar
16. Ma, Q. and Clarke, D.R., “Size dependent hardness of silver single crystals”. Journal of Materials Research, 1995. 10: p. 853–862.Google Scholar