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Length-Scale-Dependent Micromechanical Modeling for Precipitate Hardening in Inconel 718 Superalloy Chang-Feng Wan1, Dong-Feng Li1,a, Hai-Long Qin2,3, Ji Zhang2,3 and Zhong-Nan Bi2,3,b 1School of Science, Harbin Institute of Technology, Shenzhen 518055, China 2Beijing Key Laboratory of Advanced High Temperature Materials, Central Iron and Steel Research Institute, Beijing 100081, China 3GAONA Aero Material Co., Ltd., Beijing, 100081, China alidongfeng@hit.edu.cn, bbizhongnan21@aliyun.com Keywords: IN718 superalloy; Strain gradient; Crystal plasticity; Dislocation-based hardening; Size effect Abstract.
It is well known in literatures [7-9] that the precipitate size is a key factor to alter the relevant strengthening mechanisms in crystalline materials.
Materials Science and Engineering: A, 2018. 728: p. 183-195
Journal of Alloys and Compounds, 2018. 740: p. 997-1006
International Journal of Plasticity, 2005. 21(9): p. 1797-1814

Wei 4,d 1School of Material Science and Engineering.
Henan University of Science and Technology, Luoyang, 471003, China 2Henan Key Lab. of Advanced Non-Ferrous Materials, Luoyang 471003, China 3Luoyang Ship Material Research Institute, Luoyang 471039, China 4National Key Lab. for Precision Hot Processing of Metal.
Chinese Journal of Rare Metals, Vol. 32 (2008), p. 518
Materials Letters, Vol. 57 (2003), p. 3234
Materials Letters, Vol. 57 (2003), p. 1970

Using low melting glass as the sealing materials is the first choice.
The above materials were admixed thoroughly and then ground to the required consistency in a three roll mixer.
The sealing strength was evaluated by a universal material testing machine.
Acknowledgments The authors acknowledge the support from the Science and Technology Project of Commission of Science and Technology of Beijing Municipal under Grant No.
[4] Matthias M.Koebel, Nancy El Hawi, JiaLu, Felix Gattiker, Jurg Neuenschwander, Solar Energy Materials & Solar Cells 95, 3001(2011) [5] Xu Haifeng, Liu Xiaogen, Bao Yiwang, Journal of Materials & Engineering 30, 123(2012)

Instantaneous dynamic analysis of the new stirring kneader shaft Fan Zhimin1，a, Zhou Guangting1，b, Liu Jianping2，c 1College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China 2 Qingdao Galaxy Group, Qingdao 266071, China azmfan@163.com,bzhouguangting518@163.com,cLJP0807@163.com Keywords： finite element method；stirring kneader shaft；instantaneous dynamic analysis；ANSYS Abstract.
Introduction The new different-speed mixer was mainly applied to stir and mix of high viscosity materials.
Here refers to literature [4], the value of K was set to 0.07N/mm2. 2 Instantaneous Dynamic Analysis of Stirring Shaft 2.1 Material Performance Parameter of the Stirring Shaft The low-carbon steel was chosen to be the material of the stirring shaft, which was seen as linearly elastic material, and all of the mechanical property was chosen at the condition of ordinary temperature.
Journal of Qingdao University of Science and Technology.
Journal of Qingdao University of Science and Technology.

Experimental Section Materials and Measurements.
PIKS are amorphous structure materials with relatively high glass transition temperatures (Tg >200℃）and high thermal stability（T5%﹥440℃）.
Chinese Journal of Chemisty, Vol. 27 (2009), p. 850 [4] Chang Guan-jun, Zhang Lin, Lin Run-xiong.
Chinese Polymer Science.
Chinese Journal of Chemisty, Vol. 27 (2009), p. 428 [6] Lin Zhang, Guanjun Chang, Zhen Xu, Lubin Miao, Yi Xu, Hongju Hu, Xuan Luo, Runxiong Lin. e-Polymers 2010, no. 137

After that, the material without coal was ground and separated to produce iron powder product.
Acknowledgements The research project is financially supported by ministry of Science and Technology of P.R.
China (863 project, 2009AA06Z111) and China geological Survey (science and technology [2011] 01-69-01, science and technology [2011] 01-69-07).
Journal of Central South University of Technology (English Edition), Vol.12 (2005), p.682-687
Journal of Hazardous Materials, Vol.185 (2010), p. 1405-1411

Journal of China University of Mining & Technology, 2012, 41(1): 86-90,in China
International Journal of Mineral Processing, 2008, 86(1): 40-49
[6] Ma J, Zou S H, Wang X Z, et al.Advanced Materials Research, 2013, 625: 202-205
[8] LI L,LIU J T,WANG L J, et al.Mining Science and Technology,2010,20(1):88-92
Chemical Engineering Science, 2012, 73: 123-139.Ma J, Zou S H, Wang X Z, et al.Advanced Materials Research, 2013, 625: 202-205.

Materials and methods Diamond-structure models were designed in Pro/ENGINEER software.
Science.
Science.
Journals Microwave Theory and Technique, Volume: 55, Issue: 3(2007)
RP Journal, vol:18, iss:1(2011)

Materials Science Technology,2004,20 : 399–402
Materials Science and Engineering.
Journal of Materials Processing Technology,2011, 211: 1614– 1619
Materials Science Engineering.
Journal of Materials Science,2008,43: 5368–5375

Materials Science Forum Vols, 800-801(2014) 506-510
Journal of Materials Processing Technology.2003, 138 (1-3): 436-442
Materials Science Forum Vols, 800-801 (2014): 660-665
Journal of tool technology, 2005 (7) : 44-46
Wuhan University of Science and Technology, 2012.