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 JMMCE  Vol.10 No.7 , June 2011
Application of Automated Ball Indentation for Property Measurement of Degraded Zr2.5Nb
Abstract: In this work, Automated Ball Indentation (ABI) technique is based on load controlled multiple indentations (at a single penetration location) of a polished surface by a spherical indenter (0.7 to 1.46 mm) and indentation depth is progressively increased to a maximum user specified limit with intermediate partial unloading. This technique permits measurement of yield strength, stress-strain curve, strength coefficient and strain hardening exponent. ABI Testing was carried out on samples of Zr-Nb2.5 (Pressure Tube Material) with different heat treatment conditions in which temperature was varying (550 degree to 900 degree and retention time was varying 0.5 to 6 hour and furnace cooled. For all these test material and conditions, the ABI derived results were in very good agreement with those from conventional standard test methods.
Cite this paper: K. Sharma, P. Singh, V. Bhasin and K. Vaze, "Application of Automated Ball Indentation for Property Measurement of Degraded Zr2.5Nb," Journal of Minerals and Materials Characterization and Engineering, Vol. 10 No. 7, 2011, pp. 661-669. doi: 10.4236/jmmce.2011.107051.
References

[1]   E. Meyer and Z. Ver, Dtsch. Ing. 52 (1908).

[2]   D. Tabor The Hardness of Metals; 1951

[3]   F. M. Haggag, American Society for Testing and Materials, Philadelphia, pp 27-44, 1993.

[4]   K. L. Murthy, P.Q. Mirgania, and M. D. Mathew, International journal of Pressure Vessel and Piping, 76 (1999) 361.

[5]   F M Haggag and R K Nanstad, PVP, 170 (1989).

[6]   M D Mathew, K L Murthy, L M Lietzan and V N Shah, A269 (1999) 186.

[7]   T. S. Byan, J. W. Kim, J. H. Hong, Journal of Nuclear Materials, 252 (1998) 187.

[8]   Y H Lee, W J Ji and D Kwon, Experimental Mechanics, 44 (2004).

[9]   Ghosh Sabita et. al. Mater. Lett, 62 (2008) 2619.

[10]   Hyungyil Lee et.al., J Mech. Phy of Solids, 53 (2005) 2037.

[11]   G. Das et.al. J. Mat. Res. Adv. Tech., Metallkunde, 95 (2004) 1120.

[12]   K. Sharma, V. Bhasin & A K Ghosh, JJMIE, 4 (2010).

 
 
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