TY  - JOUR
TT  - The Effect of Cold Rolling on Mechanical Properties of Zircaloy-4
AU  - Ağca, Semih
AU  - Çankaya, Güven
PY  - 2017
DA  - November
JF  - International Journal of Multidisciplinary Studies and Innovative Technologies
JO  - IJMSIT
PB  - SET Teknoloji
WT  - DergiPark
SN  - 2602-4888
SP  - 29
EP  - 35
VL  - 1
IS  - 1
KW  - Zircaloy-4
KW  - UMT
KW  - cold rolling
KW  - mechanical properties
N2  - In this study, Zircaloy-4 rods are heat treatedand cold rolled to different (15%, 30%, 45%, 60%, and 75%) reduction ratios todetermine the effect of heat treatment and cold rolling on micro and nano scalemechanical properties of Zircaloy-4. Micro scale mechanical properties areinvestigated by micro Vickers hardness tester and nano scale mechanicalproperties are studied by universal mechanical tester (UMT). Fracture surfacesof samples are illustrated by scanning electron microscope (SEM). Microstructureof samples are evaluated by optical microscope. It is found that hardnessincreased with increasing cold rolling reduction ratio both in micro and nanoscale. Nano scale measurements showed that the elastic modulus is increasedwith increasing reduction ratio. Increase in hardness and elastic modulusaltered the fracture from ductile to brittle. Fracture mode for samples aredetermined as mixed mode.  
CR  - [1]	S. Glasstone and A. Sesonske, Nuclear Reactor Engineering – Reactor Systems, 4nd ed. Vol.2, Dordrecht, Holland: Springer-Science+Business Media, 1994.
CR  - [2]	D. Fuloria, N. Kumar, S. Goel, R. Jayaganthan, S. Jha, D. Srivastava, “Tensile Properties and Microstructural Evolution of Zircaloy-4 Processed Through Rolling at Different Temperatures,” Materials and Design, vol. 103, pp. 40-51, 2016.
CR  - [3]	Y. S. Lim, H. G. Kim, Y. H. Jeong, “Experimental Evolution of the Rolling Reduction and Heat-treatment Effects on the Texture and Creep Behavior of a Zircaloy-4 Sheet,” Materials Transactions, vol. 49(8), pp. 1922-1925, 2008.
CR  - [4]	V. Busser, M. C. B. Dubourg, J. Desquines, C. Duriez, J. P. Mardon, “Mechanical Response of Oxidized Zircaloy-4 Cladding Material Submitted to a Ring Compression Test,” Journal of Nuclear Materials, vol. 384, pp. 87-95, 2009.
CR  - [5]	J. S. Yoo, I. S. Kim, “Texture Transformations and Its Role on the Yield Strength of (α+β) Heat Treated Zircaloy-4,” Journal of the Korean Nuclear Society, vol. 24(1), pp. 75-85, 1992.
CR  - [6]	X. Fischer, A. Daidie, B. Eynard, M. Paredes, Research in Interactive Design Vol. 4: Mechanics, Design Engineering and Advanced Manufacturing, Switzerland: Springer International Publishing, 2016.
CR  - [7]	F. Yılmaz, “Farklı Yöntemlerle Üretilen AB5 Tipi Hidrojen Depolayan Alaşımların Karakterizasyonu,” Ph.D. Thesis, Gaziosmanpaşa University, Graduate School of Natural and Applied Sciences, Tokat-Turkey, 2014.
CR  - [8]	F. Yılmaz, “Nanokristal Al-Si-Sb Alaşımlarının Enerji Yaklaşımı ile Mikromekanik Karakterizasyonu,” M.Sc. Thesis, Gaziosmanpaşa University, Graduate School of Natural and Applied Sciences, Tokat-Turkey, 2008.
CR  - [9]	P. Trivedi, A. K. Patel, R. Maurya, R. Jayaganthan, K. Balani, “Nanomechanical Characterization and Protein Adsorption of Cold-Rolled Zirconium Alloy,” The Minerals, Metals & Materials Society, vol. 67(4), pp. 726-732, 2015.
CR  - [10]	M. Ito, H. Muta, D. Setoyama, M. Uno, S. Yamanaka, “Nanoindentation Studies of High-temperature Oxidized Zircaloy-4 with and without Hydrogen,” Journal of Alloys and Compounds, vol. 446-447, pp. 639-642, 2007.
CR  - [11]	A. H. De Menibus, Q. Auzoux, O. Dieye, P. Berger, S. Bosonnet, E. Foy, V. Macdonald, J. Besson, J. Crepin, “Formation and Characterization of Hydride Blisters in Zircaloy-4 Cladding Tubes,” Journal of Nuclear Materials, vol. 449, pp. 132-147, 2014.
CR  - [12]	G. E. Totten, K. Funatani, L. Xie, Handbook of Metallurgical Process Design, New York: Marcel Dekker Inc., 2004.
CR  - [13]	W. D. Callister, D. G. Rethwisch, Materials Science and Engineering, SI Version (8th Ed.), New York: John Wiley & Sons Inc., 2011.
CR  - [14]	D. J.Wulpi, Understanding How Components Fail (3th Ed.),
UR  - https://dergipark.org.tr/tr/pub/ijmsit/issue//359383
L1  - https://dergipark.org.tr/tr/download/article-file/375012
ER  -