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(5) The improved Griffith yield criterion and the dilation equation In 1921, Griffith pointed out that fracture of brittle materials was decided by the existence of cracks inside the material, and the stress concentration at crack tips would lead to cracks propagation or even materials damage [9].
Journal of Applied Mechanics. 55(1988)275-279
Journal of University of Science and Technology of China. 36. 10(2006)102l-1027.
Nanjing University of Science & Technology, Nanjing, 2011.
Journal of Nanjing University of Science and Technology. 30.1(2006)1-4.

It can make full use of the two materials’ nature.
The results show that the neotype anchor system can make full use of the materials’ nature and is in good working order.
American Journal of Applied Sciences ,2007,4(3)：122-127 [3] Peter Chromiak, Jiri Al-Darzi, Ai Rong Chen, Yu Qing Liu.
American Journal of Applied Sciences ,2007,4(3)：122-127 [4] Ai Rong Chen,S.Y.K.AL-Darzi.
Asian Journal of Applied Science,2009,2(4)：385-393 [5] S.Y.K.Al-Darzi,A.R.Chen,Y.Q.Liu.

Alloying is one of effective ways to increase the property of iron-based PM materials.
Materials Science Forum Vol. 471-472 (2004), p. 443 [4] J.
Narasimhan: Advances in Powder Metallurgy and Particulate Materials [C].
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Journal of Materials Processing Technology Vol. 129 (2002), p. 354 [11] HUANG Pei-yun: Theory of Powder Metallurgy.

Raw materials were mixed and milled with zirconia balls for 24 h.
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In Materials Science Forum. 846 (2016) pp. 115-125
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Acknowledgments The authors would like to acknowledge the National Nature Science Foundation of China (No. 51008132, No.51038004) and The Ministry of Transport of the People's Republic of China for financial support (No. 200831800099) and the Pavement Research Center of University of California at Berkeley for technical support.
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Morin: Transportation Research Record: Journal of the Transportation Research Board Vol. 1492 (1995), p. 53 [5] Masad E., Muhunthan B., Shashidhar N., Harman T.: Journal of Computing in Civil Engineering Vol.13 (1999), pp. 88 [6] Masad E., Muhunthan B., Shashidhar N., Harman T.: Transportation Research Record: Journal of the Transportation Research Board Vol. 1681 (1999), p. 179 [7] Masad E., Jandhyala V.K., Dasgupta N., Somadevan N., Sashidhar N.: Journal of Materials in Civil Engineering Vol.14, (2002), pp.122 [8] Masad E., Button J. : Transportation Research Record: Journal of the Transportation Research Board Vol. 1891 (2004), p. 212 [9] Saadeh S., Tashman L., Masad E., Mogawer W.: Journal of Testing and EvaluationVol.30 (2002), p. 483 [10] Tashman L., Masad E., Peterson B., Saleh H.: Journal of the Association of Asphalt Paving Technologists Vol.70 (2001), p. 605 [11] Tashman L., Masad E., Angelo J.
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Inside of these, being matrix materials, aluminum, magnesium, and titanium have been widely used.
CASETEP module is based on the theory of quantum mechanics, which uses density functional theory (DFT) to study the characters of materials.
The production and application of metal matrix composites materials[J].Journal of materials processing technology,2000,106:58-67 [2] Qian D, Dickey EC, Andrews R etc.
Composites science and Technology 63(2003): 1655-1661 [4] Iijima S, Brabec C, Maiti A, etc.
An effective inclusion model for effective moduli of heterogeneous materials with ellipsoidal inhomogeneities[J].

Microstructure and Young's Modulus of (TiZr)2-x(NbTaMo)x Bio-High Entropy Alloys Mitsuharu Todai1,a*, Nagi Takahashi1,b , Neiro Tanaka1,c, Daisuke Tanaka2,d, Takeshi Nagase3,e, Aira Matsugaki4,f, Takayoshi Nakano4,g 1Department of Environmental Materials Engineering, National Institute of Technology, Niihama College, 7-1 Yagumo-cho Niihama, Ehime 792-8580, Japan 2Graduate School of Information Sciences, Tohoku University, Sendai 6-3 Aramaki Aza-Aoba, Aoba-ku, Sendai, Miyagi 980-8579, Japan 3Department of Materials and Synchrotron Radiation Engineering, Graduate School of Engineering, University of Hyogo, Himeji 671-2280, Japan 4Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan am.todai@niihama-nct.ac.jp, bngi98824@icloud.com, cqcsx2den9pcibg50nwn1@docomo.ne.jp, ddaisuke.tanaka.b7@tohoku.ac.jp, et-nagase@eng.u-hyogo.ac.jp, fmatsugaki@mat.eng.osaka-u.ac.jp, gnakano@mat.eng.osaka-u.ac.jp
Keywords: High entropy alloys (HEAs), Bio metallic materials, microstructure, Young’s modulus Abstract.
Introduction High entropy alloys (HEAs) are defined by their mixing entropy, DSmix, and have recently attracted significant attention as a group of materials distinct from conventional metallic materials [1-4].
They exhibit particularly high strengths and are expected to be used as new refractory materials [5].
In general, metallic materials with a high yield strength tend to have a high Young's modulus, and it is considered that high-strength materials, such as TiZrNbTaMo bio-HEAs, also have a high Young's modulus.

Paper is the main print material, whose performance is a factor that effects the printing’s dot gain which is bad to image clarity and color reproduction.
As an important printing material, paper’s performance is one of the factors that affect dot gain.
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[3] Ivanov, V., Kirov, V., 1996, Rolling of internal threads: Part 1, Journal of Materials Processing Technology, 72: 214-220
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Journal of materials science, 26(1991) 1137-1156
Journal of the Minerals, Metals and Materials Society, 43(1991) 8-15
Extrusion characteristics of aluminum alloy/SiCp metal matrix composites, Materials Science and Technology. 15(1999) 443-449
Hot-deformation behavior of spray-formed 2014 Al+SiCP metal matrix composites, Materials Science and Engineering A. 477(2008) 86-95
Journal of Mechanical Science and Technology.28 (2014) 1867-1874