Evaluation of multi-layered hardness in ion-irradiated stainless steel by nano-indentation technique
作者： Hiroshi Oka , Yutaka Sato , Naoyuki Hashimoto , Somei Ohnuki
DOI: 10.1016/J.JNUCMAT.2015.01.062
关键词:
摘要: Depth dependence of hardness in ion-irradiated 316 stainless steel was evaluated by the sectioning damaged region and subsequent nano-indentation. The range plastically deformed nano-indentation supplementarily investigated transmission electron microscopy. When indentation depth critical depth, hc, which derived from Nix–Gao plot, dislocation structure observed specimen surface to right below bottom region. To verify hardness, “multi-layer model” introduced this study. multi-layer model is based on following assumptions; (1) can be divided into sub-layers having their own local HL; (2) product f HL each sub-layer where volume fraction a deformation zone; (3) zone hemisphere. Eventually, through nano-indentation, experimentally evaluated. Further correlation between displacement damage irradiation hardening ΔH study agreed with that neutron experiments.
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sci-hub.se 参考文章(8)
Y HUANG, F ZHANG, K HWANG, W NIX, G PHARR, G FENG, A model of size effects in nano-indentation Journal of The Mechanics and Physics of Solids. ,vol. 54, pp. 1668- 1686 ,(2006) , 10.1016/J.JMPS.2006.02.002
A. Okada, K. Hamada, I. Ishida, E. Hirota, M. Kiritani, T. Yoshile, Comparison of mechanical properties of metals irradiation with fission and fusion neutrons Journal of Nuclear Materials. ,vol. 233-237, pp. 1016- 1021 ,(1996) , 10.1016/S0022-3115(96)00115-8
Karsten Durst, Björn Backes, Mathias Göken, Indentation size effect in metallic materials: Correcting for the size of the plastic zone Scripta Materialia. ,vol. 52, pp. 1093- 1097 ,(2005) , 10.1016/J.SCRIPTAMAT.2005.02.009
L.E. Samuels, T.O. Mulhearn, An experimental investigation of the deformed zone associated with indentation hardness impressions Journal of The Mechanics and Physics of Solids. ,vol. 5, pp. 125- 134 ,(1957) , 10.1016/0022-5096(57)90056-X
Ryuta Kasada, Yoshiyuki Takayama, Kiyohiro Yabuuchi, Akihiko Kimura, A new approach to evaluate irradiation hardening of ion-irradiated ferritic alloys by nano-indentation techniques Fusion Engineering and Design. ,vol. 86, pp. 2658- 2661 ,(2011) , 10.1016/J.FUSENGDES.2011.03.073
William D. Nix, Huajian Gao, Indentation size effects in crystalline materials: A law for strain gradient plasticity Journal of The Mechanics and Physics of Solids. ,vol. 46, pp. 411- 425 ,(1998) , 10.1016/S0022-5096(97)00086-0
W.C. Oliver, G.M. Pharr, An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments Journal of Materials Research. ,vol. 7, pp. 1564- 1583 ,(1992) , 10.1557/JMR.1992.1564
Kiyohiro Yabuuchi, Yutaka Kuribayashi, Shuhei Nogami, Ryuta Kasada, Akira Hasegawa, Evaluation of irradiation hardening of proton irradiated stainless steels by nanoindentation Journal of Nuclear Materials. ,vol. 446, pp. 142- 147 ,(2014) , 10.1016/J.JNUCMAT.2013.12.009