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Forging materials 40Cr adopted rigid visco-plastic flow stress model to definition, type for equivalent strain, as an equivalent strain rate, for deformation temperature.
Journal of Mechanical Science and Technology, 2008, 22(9): 1772-1778
International Journal of Machine Tool Design and Research, 1981, 21(2): 109-127
Journal of Materials Processing Technology, 2009, 209(18-19): 5871-5880
Materials Science Forum, 2008, 575-578: 334-339.

Introduction In the continuing development of materials with improved magnetic properties one of the recent methods is to produce ferromagnets with ultrafine grains including nanocrystalline structures.
Grossinger, R.Sato, D.Holzer, et al., Advanced Engeneering Materials 5 n5 (2003) 285
Kronmuller, R.Fisher, M.Bachman, et al., Journal of Magnetism and Magnetic Materials 203 (1999) 12
Nikitin, Journal of Magnetism and Magnetic Materials 153 (1996) 241
Langdon, Progress in Material Science 53 (2008) 893

The above materials were admixed thoroughly and then ground to the required consistency in a three roll mixer.
Thixotropic Behavior Thixotropy of paste materials has often been quantified by measuring the surface of what is called the ‘thixotropic loop’ or at least a surface linked to this thixotropic loop [10-12].
Rizzi: International Journal of Production Economics Vol. 112 (2008), p. 548
Hogan: Meat Science Vol. 74 (2006) p. 113
Ger: Journal of materials processing technology Vol. 197 (2008), p. 284

But the process of SiC ceramics is more difficult than other materials due to the poor machinability and high sintering temperature [1-3].
Nano-process of SiC Ceramics by Molecular Simulation，Advanced Materials Research Vols. 189-193 (2011) p 3097-3102 [4] Gogotsi Y G, Welt S, Eesoy D A.
Key Engineering Materials 2006, 315-316: 792-795
Study on Precise Rubbing Technology of HIPSN Ceramic Balls[J]．13CCAT，Key Engineering Materials, 2006, 304-305:364-368
Journal of Tianjin University, 2000, 33(5): 652-656 (In Chinese) [10] Juping Ren, Ke Zhang, Yulan Tang.

Ravi Kumar, “Effect of Process Parameters on Product Surface Finish and Thickness Variation in Hydro-mechanical Deep Drawing” Journal of Materials Processing Technology, vol. 204 (1-3), pp. 169-178, (2008)
Mahesh, “A study on the extent of ironing of EDD steel at elevated temperature” CIRP Journal of Manufacturing Science and Technology, vol. 3 (1), pp. 73–79, (2010)
[8] Takuda H., Mori K., Masachika T., Yamazaki E., and Watanabe Y., “Finite Element Analysis of the Formability of an Austenitic Stainless Steel Sheet in Warm Deep Drawing”, Journal of Materials Processing and Technology, vol. 143-144, pp. 242-248, (2003)
Materials and Design, vol. 28, pp. 1641–1646, (2007)
Journal of Materials Processing Technology, vol. 183, pp. 339–346, (2007)

For simplicity, the materials were assumed homogeneous and isotropic, with smeared crack model (total strain crack, rotating) [16].
Journal of Performance of Constructed Facilities.
Composite Materials - A Vision for the Future (2011) 113-127
Applied Sciences, 7 (2017) 897
Materials And Structures, 41 (2008) 153-157

Most structural steels and a number of other materials have the property of increasing resistance during high-speed deformation, while kinematic strengthening is observed due to the dynamic nature of the external influence.
One of the main characteristics of the process of high-speed deformation of materials is the strain rate.
IOP Conference Series: Materials Science and Engineering. 708 (2019) 012044 https://iopscience.iop.org/article/10.1088/1757-899X/708/1/012044 [4] M.S.
Journal "Computer and Structures". 82 (2004) 639–651
International Journal of Impact Engineering. 11 (4) (1991) 539–546

TRIZ Based Tool Management Applied in Mechanical Heart Valve Engineering Systems Feng Zhou1 , Yuan Yuan Cui1, Liang Liang Wu1, Yin Chen2, Jie Yang2, Nan Huang1* 1Key Laboratory of Advanced Technologies of Materials, Chinese Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China 2Mechanical Engineering School, Southwest Jiaotong University, Chengdu 610031, China 34030207@qq.com, nhuang@263.net* Keywords: Artificial heart valves, TRIZ, Structure Abstract Artificial mechanical heart valve (MHV) replacement is the common cardiovascular surgical procedure, yet its effect is far from satisfaction.
Most important reasons lie in the model design and choice of the materials in the fabrication of the prosthetic heart valves.
Fig. 2 Different structures of the artificial heart valves fluid dynamics[3] It is very important to apply a biocompatible material in artificial heart valves, improving the material properties on the surface of components in order to provide better biocompatibility of materials in vivo.
Adopting flexible materials cause the orifice area in the middle of the valve to be less than 5 percent of the total orifice area of the valve in the fully closed position.
In a word, it is essential to establish an approaching center flow field, and adopt an anti-wear, suitable biocompatible materials and suitable structure. 5.

Materials and Methods Palm Ash.
Palm ash from local palm oil mill was used as raw materials to produce silica materials.
“High-purity Amorphous Silica Originated in Rice Husks via Carboxylic Acid Leaching Process”, Journal of Materials Science, 43, 7084-7090
“Review of Extraction of Silica from Agricultural Wastes using Acid Leaching Treatment”, Advanced Materials Research, Vol. 626, 997-1000
“Effect of Nitric Acid Digestion on Organic Materials and Silica in Rice Husk”, J.

In Ref. 6, the susceptibility of the magnetic powder testing was estimated with the help of Magnetic indicator bags (MIBs), which can be used in the magnetic testing alongside traditional techniques of application of flaw-detecting materials.
(Science and technology) in China. 2005, 36(5): 872-876
Egyptian Journal of Solids. 2007, 30(1): 13-18
Journal of HeBei institute of architecture and civil engineering. 2007, 25(1): 105-107
Journal of Sichuan University of Science & Engineering (Natural Science Edition). 2006, 19(1): 17-20.