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The heat treatment and the resulting material phases have a considerable influence on the forming stage [1].
The development of numerical codes to calculate thermal histories, phase transformations and stress fields of different materials allow us to develop models which can predict the effects of heat treatment on the metallurgical and mechanical properties of machine components [3].As an important research method besides traditional one by experiment, numerical simulation has been applied to heat treatment researching widely [2].
The material of brake disc is 2Cr13.
Andrade-Campos: International Journal of Material Forming, Vol. 3 (2010), p. 1139 [2] Jianhua Xie , Xingzhao Wei and Peng Huang : Heat Treatment Technology and Equipment, Vol. 27 (2006), p. 9 (In Chinese) [3] I.
Bonollo: Computation Materials Science, Vol. 35(2006), p. 98-106 [4] Xiolong Cui and Nili Wan: Heat Treatment, Vol. 20 (2005), p. 12 (In Chinese) [5] Liu Zhuang, Wu Zhaoji, Wu Jingzhi and Zhang Yi: Numerical Simulation of Heat Treatments, (Science Press Publications, China 1996) (In Chinese)

The amounts of phases in material and porosity fraction were determined by XRD method and image analysis method, respectively.
Acknowledgements This work was financially supported by the Jilin Provincial Science and Technology Department.
Journal of Materials in Civil Engineering Vol. 12(2000), P. 245-253
Ghaini: Materials and Design Vol. 33(2011), P. 551-556
Fam: Polymer Engineering and Science Vol. 48(2008), P. 1231-1239.

There are two methods in summary, which are using new materials partly, such as aluminum alloy and carbon fiber composite, to replace steel under the condition of satisfying usability, and by using CAE (Computer Aided Engineering) technology to optimize the structure of cars to reduce the weights of cars [1].
The material of absorber spring plate is a kind of steel ST12 (Q/BQB403-99), which is formed by press at a time.
Utilization of materials is more sufficient, which enhanced material service efficiency and satisfied the requirements of rigidity and strength.
But the stress distribution and material service efficiency of Scheme 2 are not so good.
[2] Fredricson H: Internasional Journal of Vehicle Design, vol. 37 (2005) no. 1, p. 67-80 [3] L.S.

Krueger: "Economic growth and the environment Quarterly"[J], Journal of Economics, vol. 110(1995), p. 353-377
Journal of Environmental Economics and Management, Vol. 163-184(1994), p. 367
Journal of Chinese Industrial Economic, 2006(5):15-23.
Journal of Economic Problem. 2009(6):59-62.
Advances in Information Sciences and Service Sciences, Vol. 3, No.10 (2011), p. 36 ~ 44

To the rock, the mechanics characteristic is confined by many condition such as the rock characteristic material component, condition of forming rock etc., especially to the soft rock, because there’re the holes, fractures, cementation degree is bad, water content is big, when the out stress condition changes, the rock characteristic changes obviously.
References [1] Meng Zhaoping, Pen Suping: Journal of China Coal Society, Vol.25, (2000) ,P15
[2] Meng Zhaoping, Pen Suping, Zhang Shenhe: Chinese Journal of Geotechnical Engineering, Vol.25, (2003), P.140 [3] Lin Chengsen: Numerical calculation method.( Science Publishing House, China 1998)
[4] Deng Degui: Journal of the Guangxi Geoscience,Vol.5, (1992), P.30 [5] Zhang xingui, Yi Nianping, Huang Shaokeng: Chinese Journal of Rock Mechanics and Engineering.
(Coal Industry Publishing House, (1993), P. 71 [8] Guo Zhonghua, Zhu zhende, Yu Xiangjuan: Journal of Hohai University,Vol.30, (2002) ,P.93

With the tremendous progress of computer science, the research on materials' mechanical behavior is combined with simulation technology closely, it is convenient for us to set up a corresponding mathematical model to simulate the mechanical behavior of materials.
,Priestner R.Retained austenite in dual-phase silicon steels and its effect on mechanical properties[J].Journal of Materials Processing Technology,2001,113(1-3):587-593
Materials Letters,2005,59(14-15):1828-1830
A modified Johnson–Cook constitutive model for Mg–Gd–Y alloy extended to a wide range of temperatures[J].Computational Materials Science,2010,50:147-152
[10] Y.C.Lin,Xiao-Min Chen,Ge Liu.A modified Johnson–Cook model for tensile behaviors of typical high-strength alloy steel[J].Materials Science and Engineering A,2010,527:6980-6986

Corinne, Numerical modeling of inconel 738LC deposition welding: Prediction of residual stress induced cracking, Journal of Materials Processing Technology, (2010) Volume 210, Issue 14, 1 November 2010, Pages 2053-2061
Chaturvedi, Effect of filler alloy composition on PWHT cracking in Inconel 738LC superalloy, Materials Science and Technology (2008),Vol. 24 No.5, 529-539
Delaunois,(2011) Thermal cycle simulation of welding process in low carbon steel, Materials Science and Engineering: A Volume 530, 15 December 2011, Pages 191-195
Quenisset (2010).Materials and Design 31 402-416
Simon, (1998) Precipitation and dissolution processes in γ/γ’ single crystal nickel-based superalloys, Materials Science and Engineering A256 183-196.

[4] Wang H, et al, LCF behavior and deformation substructure of Ti–2Al–2.5 Zr alloy at 298 and 673 K, Materials Science and Engineering A. 527.15 (2010) 3493-3500
Gu, Tensile and LCF behavior of commercially pure titanium and Ti–5Al–2.5Sn alloy at 293 and 77 K, Materials Science & Engineering A. 316.1 (2001) 80-86
Tan, LCF behaviors of commercial-purity titanium, Materials Science & Engineering A. 252.1 (1998) 85-92
Kusukawa, LCF behavior of commercially pure titanium, Materials Science & Engineering A. 213.1 (1996) 81-85
[10] Lin X, et al, Orientation dependence of cyclic deformation behavior and dislocation structure in Ti–5at.% Al single crystals, Materials Science & Engineering A. 339.1 (2003) 63-72

Due to the exiguous material on the typhoon activities on sea, using the usual weather data to reveal the internal factor of typhoon is very difficult, but the cloud image can well reflect the internal structure characteristic of the typhoon and can well reveal its future trends.
Acknowledgements Part of the research is supported by the China National Natural Science Foundation (40805048, 11026226), Typhoon Research Foundation of Shanghai Typhoon Institute /China Meteorological Administration (2008ST01), Research foundation of State Key Laboratory of Severe Weather/ Chinese Academy of Meteorological Sciences (2008LASW-B03), Research foundation of State Key Laboratory of Remote Sensing Science, Jointly Sponsored by the Institute of Remote Sensing Applications of Chinese Academy of Sciences and Beijing Normal University (2009KFJJ013).
Journal of the Meteorological Society of Japan.
Advances in Atmospheric Sciences.
Journal of Hunan University.

Science In China(series D), 20063,33（2）：148-154
Chinese Science Bulletin, 2002, 46(supplement):30-33
Earth Science Frontiers, 2007, 14(4):197-203
Journal of Jilin Nniversity(Earth Science Edition), 2007, 37(3):491-499
Chinese Journal of Geology, 1983，4：307-314