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Acknowledgements The support of National Nature Science Foundation of China under Grant 50908015 is gratefully acknowledged.
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.%) Iron Materials Andrzej Romanski AGH-University of Science and Technology, Cracow, Poland aromansk@agh.edu.pl Keywords: sintering, dilatometry, cobalt, iron, phase analysis, microstructure.
The kinetics of sintering of Co-Fe materials was studied.
But this situation can change when powder metalurgy materials are considered.
Additionally, sintered materials were subjected for X-ray phase analysis.
Microstructure of the Co3Fe and Co15Fe materials sintered in N2.

Until now, prepreg sheets with thermosetting resin matrix are assumed to be used for materials in simulation software.
Materials and Experimental Procedures Self-weight Deflection Test Specimen.
Sone and T Katayama, “Evaluation of tensile property of CF/PA6 at molding temperature”, Journal of the Society of Materials Science, vol.67, (2018), pp.460-467
Katayama, “Formability evaluation and finite-element analysis of diaphragm molding for GFRTP with in-plane tension”, Journal of the Society of Materials Science, vol.67, (2018), pp.453-459
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The microstructure can improve the mechanical properties of materials, such as strength and hardness.
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Usually material smaller than 100nm was called nano material[1], sometimes particle between 1-100 nm was called overtake fine particle[2, 3], and particle between 1-10 nm was called nano material[4]. compartmentalize from configuration sequence character, atomic array on nano material microcrystal interface differs from either long order sequence character or short order sequence character, but it may form the third solid state[5].
Configuration of nano material endows it with many special performance, such as quantum effect [6].
To some degree, application of nano material is largely decided by preparation technique, usually, the appearance of a low cost preparation technique means development in nano material application area, this article uses liquid phase method to study the technical prepared nano material by diisopropylamine as displace solvent.
Reference [1] The National Natural Science Fund Committee for the Department of engineering and Materials SciencesScience and technology frontier>Mechanical Engineering publish co.
[6] ZHANG Rui-Fu, Journal of China Institute of mining and metallurgy,5（1985）p121.

Recently, functionally graded materials (FGMs) have gained momentum as a new kind of advanced composite materials.
Unlike classical MMC, FGMs do not suffer from interrupt changes in constituent materials within the FG structural elements.
Bert, "The effect of bending–twisting coupling on the critical speed of a driveshafts," in US Conf on Compos Materials, Orlando, FL.
Metallic Functionally Graded Materials: A Specific Class of Advanced Composites, Journal of Materials Science & Technology, vol. 29, pp. 297-316, 4// 2013
Wave propagation characteristics of a twisted micro scale beam, International Journal of Engineering Science, vol. 53, pp. 46-57, 2012

The results show that the exposed destructive position is the crankpin and the transition circular bead location of main journal.
Model Building The material of crankshaft is QT800-2.
The results show that the value of stress is the biggest at the crankpin and the transition circular bead location of main journal.
Fig.3 Deformation of crankshaft at maximum compression condition Conclusions At maximum compression condition, the value of stress is the biggest at the crankpin and the transition circular bead location of main journal.
Acknowledgment This work was financially supported by the National High Technology Research and Development Program("863"Program) of China (No.2009AA063202), Shandong Natural Science Foundation (No.Y2006F63) and Zibo Research Programme (No.20062502).

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Kim, Alpha-case formation mechanism on titanium investment castings, Materials Science and Engineering. 405 (2005) 173–177
Lino, Optimization of ceramic shells for contact with reactive alloys, Materials Science Forum. 587-588 (2008) 157–161
Kim, Influence of TiO2 on alpha case reaction of Al2O3 mould in Ti investment casting, Materials Science and Technology. 29 (12) (2013) 1453–1462
Ribeiro, Evaluation of functionally graded ceramic crucible for induction melting of TiAl based alloys, Materials Science Forum 730-732 (2013) 769–774 [15] X.
Azpilgaina, α-Case formation in Ti-6Al-4V investment casting using ZrSiO4 and Al2O3 moulds, Journal of Materials Processing Technology, 243 (2017) 75–81

Materials and Methods Materials Pig manure, cow dung, chicken manure, and biogas liquid, biogas residue: were taken from the farms and biogas digesters in Zhengzhou, Jiyuan, Zhumadian, etal.
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