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Numerical Simulation on the Microstructure during Extrusion Process of P91 Large Diameter Thick-walled Tube Pan Li1, a , Jian Zhang1, 2,b , Xu Ma1, c 1Tianjin University of Technology, Materials Science and Engineering, Tianjin, 300384, China 2Key Laboratory of Display Materials & Photoelectric Devices (Tianjin University of Technology), Ministry of Education, Tianjin 300384, China alipan336@126.com, bzhangjian@tjut.edu.cn, cmaxumax@163.com Corresponding Author: maxumax@163.com Keywords: P91 seamless steel pipe, Vertical extrusion, Numerical simulation, Comparison.
Acknowledgements This work was supported by Ministry of Industry and Information Technology of the People's Republic of China support project under Grant No.2009ZX04014-063-03, the National Natural Science Foundation of China（No.50975205）, Key Technology Support Program of Tianjin China（No.12ZCZDGX00600）, and Tianjin Key Subject for Materials Physics and Chemistry.
Metal journal, 2003,39(7): 699～703
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e) Mixing sand method is to do the expansive soil improvement through adding non-expansive coarse sand filling materials and so on, the main role is to change the constitutive property, particle combination of the natural or disturbed expansive soil, and make the expansive soil to become the non-swelling earth or to reduce its swell-shrink characteristics.
Simultaneously, the organic chemistry grouting material is one kind of non-toxic, tasteless, odourless liquid.
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Suturing materials have come a long way since the past century when horsetail hairs were used for suturing [6].
We now have absorbable or nonabsorbable polymers, coated or uncoated, mono or multifilament suture materials, as mentioned in table 1.
Cartilage cells function under low metabolic rate and oxygen supply, which makes them the best candidates to grow on scaffold materials.
A.Tezel, G.Fredrickson, The science of hyaluronic acid dermal fillers The science of hyaluronic acid dermal fillers, Journal of cosmetic and laser therapy, 10, nr. 1, 2008, pp. 35– 42 [18].
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However, of the many millions of insect species, only a very small number have the ability to digest and derive nourishment from highly cross-linked protein materials.
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[34] K.Parton, ‘Practical Wool Dyeing’, in Wool: Science and Technology ed.

One area of interest has been to use the fibers for reinforcement in cement based materials.
Material Materials of high strength to weight ratio can be produced by incorporating fibers in a ductile matrix.
Richard Hindorf after procuring the planting materials from Florida (USA).
References [1] Kanchidurai S, Nanthin T and Jai S.P., “Experimental Studies on Sisal Fibres Reinforced Concrete with Groundnut Shell Ash”, ARPN Journal of Engineering and Applied Sciences , Vol 12, No 21, November 2017
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Kaliskiego 7, 85-796, Bydgoszcz Poland 2University of Science and Technology in Bydgoszcz, Faculty of Mechanical Engineering, Department of Computer Methods, Al.
Introduction Titanium alloys are metals popular in medical devices due to their properties, such as low density, good tensile strength to yield point ratio, good corrosion resistance and biocompatibility vs. other metallic implant materials.
Tests have proven that the material features high fatigue limit vs. the yield point.
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Sato, Influence of Surface Treatment on Fatigue Strength of Ti6Al4V Alloy, Materials Transaction, Vol. 51, No. 4, 2010, pp. 694 - 698 [8] S.Hosseini, "Fatigue of Ti6Al-4V", Biomedical Engineering - Technical Applications in Medicine, InTech. pp. 75 - 92 [9] A.

Fabrication of the Beta-Titanium Alloy Rods from a Mixture of Pure Metallic Element Powders via Selected Laser Melting Mitsuharu Todai1,a, Takeshi Nagase2,b, Takao Hori2,c, Hiroyuki Motoki1,d, Shi-Hai Sun2,e, Koji Hagihara3,f, Takayoshi Nakano2,g* 1Department of Environmental Materials Engineering, National Institute of Technology, Niihama College, 7-1 Yagumo-cho Niihama, Ehime 792-8580, Japan 2Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan 3Department of Adaptive Machine Systems, Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan atodai@mat.niihama-nct.ac.jp, bmokki-luy.ftsl@docomo.ne.jp, c t-nagase@uhvem.osaka-u.ac.jp, dtakao.hori@mat.eng.osaka-u.ac.jp, esun@mat.eng.osaka-u.ac.jp, fhagihara@ams.eng.osaka-u.ac.jp, gnakano@mat.eng.osaka-u.ac.jp Keywords: Selected laser melting, Ti alloys Abstract.
The powder-bed additive manufacturing (AM) process offers advantages in terms of reduced material waste, ability to create complex shape and a decrease in the lead time from design to manufacturing.
Introduction Ti based alloys were important candidate for metallic bio-materials due to good mechanical properties and superior biocompatibility [1].
Acknowledgments This work was partially supported by the Grants-in-Aid for Scientific Research from the Japan Society for promotion of Science (JSPS) and the light metal educational foundation.
Nakajima: Biocompatible Low Young's Modulus Achieved by Strong Crystallographic Elastic Anisotropy in Ti-15Mo-5Zr-3Al Alloy Single Crystal, Journal of the Mechanical Behavior of Biomedical Materials 14 (2012) 48-54

The method of microindentation is widely used to evaluate plasticity and hardness of ceramic materials.
It was found out that the resistance to the introduction in brittle and plastic materials is mostly determined by elastic interaction forces between the contacting materials and destruction phenomena.
Strength refractory compounds and materials on theer basic.– М.: Мetallurgy, 1989
I., Zhurnal tekhnicheskoi fiziki (Journal of technical physics) 10, vol.73 (2003) 139 [5] Akio Yonezu, Baox Ing Xu, Xi Chen., Materials Science and Engineering A. 507 (2009) 226 [6] Lyakishev N.
Byulleten’ MOM (Perspective direction of materials production and processing.

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