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I., et al., Finite element analysis of spring-back of V-bending sheet metal forming processes, Journal of Materials Processing Technology, 2004, 148(1): 15-24
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[11] Dan W.J., Zhang W.G., Li S.H., Lin Z.Q., A model for strain induced martensitic transformation of TRIP steel with strain rate, Computational Materials Science, Volume 40, Issue 1, July 2007: 101-107.

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Titanium has a strong chemical reactivity with most tool materials.
And in the cutting of difficult-to-cut materials, water vapor can also act as coolant and lubricant [1].
Experiment Equipments and Materials.
Zhang, Y.Wang: Key Engineering Materials, Vol.375-376 (2008), pp.172- 176
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Diffusion of Ce-Al Melts Measured by Sliding Cell Technique Cheng Chen, Jinliang Hu, Langxiang Zhong and Bo Zhang* Laboratory of Amorphous Materials, School of Materials Science and Engineering & Anhui Provincial Key Lab of Advanced Functional Materials and Devices, Hefei University of Technology, Hefei 230009, China *bo.zhang@hfut.edu.cn Keywords: Ce-Al melts, inter-diffusion, sliding cell technique, activation energy Abstract.
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Chemical diffusion experiments in AlNiCe-melts[C]//Materials Science Forum.
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Xue, L.Zheng and L.Guo: submitted to Journal of Materials Science: Materials in Electronics (2011)
Shi: submitted to Journal of Material Science: Material Electronic (2010)
Ahmad:Materials Science & Engineering A 556 (2012), p. 633-637
Gupta: submitted to Journal of Electronic Materials (2008)
Gupta: submitted to Journal of Material Science: Material Electronics (2009)

Jiaozuo, Henan, 454000, China; 2School of Safety Science and Engineering, Henan Polytechnic University.
The paper assumes that coal containing gas is of isotropic elastic-plastic medium, and regards gas coal as linear isotropic material.
(In Chinese) [2] Ping Lu, Zhaowu Sheng, Guiwang Zhu, Encai Fang, The effective stress and mechanical deformation and damage characteristics of gas-filled coal, Journal of China University of Science and Technology. 31(2001) 686-693.
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REFERENCES 1Riley, F.L., Silicon �itride and Related Materials.
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Therefore, it has been a global research focus amongst those interested in new materials, microelectronics, and photoelectronics [1].
Currently, there are many methods of preparing SiC thin-film materials.
McDaniel, Nuclear Instru-ments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 283 (July) (2012) 93–96
Miyakawa, Laser annealing of sputter-deposited a-SiC and a-SiCxNy films, Bulletin of Materials Science, 34(2011) 1375–1378
Lindefelt, A model for doping-induced band gap narrowing in 3C-, 4H-, and 6H-SiC, Materials Science and Engineering B 61-62 (1999) 225 – 228

The main advantages of using adsorption materials are: 1.
After all, the utilization of sorption materials helps not only to reduce the man-made load on the environment, but also to improve the technology of creating alternative materials due to the use of high-quality clay material.
Materials and Methods In the leather industry, wastewater after tanning is considered to be the most concentrated, they make up 1% of total water consumption.
References [1] V.Iurchenko, M.Radionov, O.Melnikova, O.Rachkovskiy, L.Mykhailova, Influence on Environmental Safety of the Drinking Water of Nitrification in Water Reservoir Being a Source of Water Supply and Filter Filling Materials in Water Treatment Facilities, Problems of Emergency Situations: Materials and Technologies. 1006 (2020) 187-193
Series: Materials Science and Engineering 708 (2019) 012035 IOP Publishing

Now, the coefficients of 15 kinds of common materials calculating the dangerous phase difference are given in table 1.
-181.15 233.6 S45C [20] 1.4314 19.865 -6.91 44.389 -7.4345 63.526 183.2 235.38 1CR-18Ni-9Ti [20] 1.4045 20.826 -7.391 44.011 -7.054 60.334 -174.1 226.29 Note：* represent 650℃ high-temperature materials,# represent 760℃ high-temperature materials Conclusion 1.
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[20] Luca Susmel, Giovanni Meneghetti, Bruno Atzori: Journal of Engineering Materials and Technology.