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Fig. 4 Shotpeening coverage Fig. 5 4-point rotary bending machine Cu Si Mg Zn Mn Cr Fe Ti 1.2 ~2.0 0.4 0.45 ~0.8 5.1 ~6.1 0.2 0.18 ~0.35 0.5 0.2 Properties Tensile strength (MPa) Yield strength (MPa) Elongation (%) Modulus of elasticity (MPa) Values 570 505 9 7.2×10 3 Raw material diameter×length Ø 20mm × 100mm Spindle's number of revolution 1000 rpm Feedrate speed 0.05~0.30 mm/rev.
References [1] Guagliano, M: Relating Almen intensity to residual stresses induced by shot peening: a numerical approach, Journal of Materials Processing Technology, 110, pp. 277~286. (2001) [2] S.
Namjoshi: Effects of fretting fatigue on the residual stress of shotpeened Ti-6Al-4V samples, Materials Science and Engineering, 399A, pp. 58~63. (2005) [3] A.
Vo¨hringer: Effects of warm peening on fatigue life and relaxation behavior of residual stresses in AISI 4140 steel, Materials Science and Engineering, 293A, pp. 191~197. (2000) [4] J.

Ultrafine-grained treatment process on FGH4096 alloy NING Yongquan1,a, YAO Zekun 1, GUO Hongzhen1 , TAO Yu 2, ZHANG Yiwen 2 1.College of Materials Science and Engineering, Northwestern Polytechnical University, Xi'An 710072,China; 2.
High Temperature Materials Research Institute, China Iron and Steel Research Institute Group, Beijing 100081, China a ningke521@163.com Keywords: Multiple forging; ultrafine grain; mechanical properties; dual-property turbine disc Abstract.
Table 1 also shows that the alloy upseted and heat treated has %EL and RA values well above those specified for wrought material, while the strength are comparable to those of HIP + heat treated alloy.
Materials Science and Engineering A 400-401 (2005)pp489-495 [3] G.B.Viswanathan, P.M.Sarosia, M.F.Henry, etal.
The Chinese Journal of Nonferrous Metals,10,3 (2000) 378-382 (in Chinese).

(1)Unit and materials character parameter selection For left and right track frame models, the solid 95 solid-Quad is opted.
The material of main frame is carbon steel Q420, the yield strength is σs=380MPa.
(1)Selection of unit and parameters of materials The top track frame’s material is similar with left and right track frames, the module of elasticity is 2.0×105MPa, and poisson’s ratio is 0.3
Acknowledgement This study was supported by Science Foundation of China University of Petroleum, Beijing (No.
Journal of System Simulation. 2010(02)

Microstructures and Mechanical Properties of Sn-9Zn-xGa Alloy Fei-Yi Hung 1 , Truan-Sheng Lui2 , Li-Hui Chen and Ping-Hui Chen Department of Materials Science and Engineering, National Cheng Kung University, Tainan, TAIWAN 701. 1 Email: fyhung@mail.mse.ncku.edu.tw ; 2 Email:z7408020@email.ncku.edu.tw The Sn-9Zn-xGa (x=0, 0.4, 0.6, 0.8 wt.%) alloy was used to explore the room temperature tensile properties first, and the 1.5Ga specimen was selected to investigate the tensile deformation mechanism in 120 0C afterwards.
Acknowledgements The authors are grateful to the Chinese National Science Council for its financial support (Contract: NSC 95-2622-E-006-034-cc3).
Wang, J. of Electronic materials, vol. 32, no.2, 63-69 (2003). 3.
Wang, "Improvement on the microstructure stability, mechanical and wetting properties of Sn-Ag-Cu lead-free solder with the addition of rare earth elements, Journal of alloys and compounds, 366 (2004) 170-175. 4.
Smithells Metals Reference Book, eighth edition, The Materials Information Society, edited by W.

Thus, for such materials measurements have to be performed in the non-linear part of the I-V curve [4].
By using suitable calibration curve it could be possible to determine doping concentrations References [1] Fukuda Y., Nishikawa K., Shimizu M., Iwakuro H., Point-Contact Current Voltage Technique for Depth Profiling of Dopants in Silicon Carbide, Materials Science Forum (2002) 389-393, 671-674 [2] Hillard, R.
K., Semiconductor Material and Device Characterization, third ed.
New York: John Wiley & Sons (2006) [4] Kinder, R., Hulenyi, L., Hudec, L., Chmel, L., Kuruc, M., An automatic measurement system with spreading resistance and PCIV profiling for characterization of semiconductors, Journal of Electrical Engineering (2007) 58, 165-168 [5] Calcagno, L., Raineri, V., Depth carrier profiling in silicon carbide, Current Opinion in Solid State and Materials Science (2002) 6, 47-54 [6] Kimoto, T., Cooper, J.A., Fundamentals of silicon carbide technology: Growth, characterizaton, devices and applications, John Wiley & Sons (2014)

This technique assumes that the materials in each element is composed of an infinite number of microscopic cells containing varying degrees of solid and void thus forming a composite porous medium.
Conventionally, topology optimization of continuum structures is formulated as a minimum mean compliance problem under a material volume constraint.
In the first time, the constraint volume is 0.5, which means 50% of the material in the design domain is going to be removed.
The final result element material density nephogram of baffle after topology optimization is shown as Fig.4.
[4] Yoon Gil Ho, Kim Yoon Young: International Journal of Solids and Structures Vol.42(7) (2005), p.1983–2009

Design the key parameters of permanent magnetic materials The working point of permanent magnet is determined by magnetic resistance of external magnetic circuit
NdFeB is choosen as permanent magnetic materials, the demagnetization curve approximation to the liner, R0 can be considered as a fixed value
When external magnetic circuit parameters and the permanent magnet material is selected, Br , R , HC and Φm can be obtained
Mechanical Science and Technology for Aerospace Engineering, 2009, 28 ( 10): 1371–1378
Principle and Parameter Design of Hybrid Magnetic Axial Bearings.Journal of Applied Sciences, 2006,24(1):94-98

Introduction In practical engineering, mixed mode fractures of material are commonplace.
The use of a cohesive zone model to study the fracture of fiber composites and adhesively-bonded joints [J] International Journal of Fracture,2003,119(4): 25–46
Simulation of Propagation and Localization of Minute Cracks near a Mode II Crack Tip under Compressive Stresses [J].Materials Science Forum, v 440-441, p 137-144, 2003
Key Engineering Materials, v 261-263, n II, p 1557-1562, 2004
Fracture coalescence in rock–tyoe materials under uniaxial and biaxial compression[J].Int J Rock Mech Min Sci and Geomech Abstract,1998,35(7):863-889.

Investigation on the in vitro Degradation and Release Behaviors of Calcium Phosphate Containing Chinese Medicine XH Yu 1, SX Qu 1, a , YR Liu 1, R Shen 1 , XH Li1 , W Zhao 2 , and J Weng 1, b 1 Key Lab of Advanced Technologies of Materials, Ministry of Education, School of Material Science and Engineering, Southwest Jiaotong University, Chengdu, China 2 Chengdu University of Traditional Chinese Medicine, Chengdu, China a mwbqsx@sina.com; bjwxm3503@sina.com Keywords: Calcium Phosphate; Chinese Medicine; Salvia Miltrorrhiza Bunge; Drug Delivery System; Simulated Body Fluid.
On the other hand, there are many Chinese Medicines have been used to facilitate bone healing in Chinese medical science [3].
Materials and Methods Preparation of Ca/P Powders Ca/P powders containing Chinese Medicine were prepared as previously reported [4].
West China Journal of Stomatology Vol. 14 (1996), p. 104
Materials Letters Vol. 57 (2003), p. 2066.

Sintering along with hipping is normally required for better dense materials.
Raw material used in the experimental were Al powder(≥99.7% purity,100~200 mesh), Fe2O3 powder(≥99.5% purity and ~2m) and Na2SiO3 solution(density 1.526 g/cm3).The Na2SiO3 solution was measured 35 milliliter and the weight of the Fe2O3 was measured 150 gram.The weight ratio of Al powder and Fe2O3 powder was based on the following reaction. 2Al + Fe2O3 —— 2Fe + Al2O3 （1） The Fe2O3 powder was put into the drying oven at 150℃ for 12 hours.
References [1] F.GAO, Z.M.GUO, T.LIN:Journal of University of Science and Technology Beijing(in Chinese),Vol.30 (2008) No.6,p.648
[11] Masanta M, Shariff S M, Roy Choudhury A:Materials science&engineering.
A, Structural materials: properties, microstructure and processing, Vol.528 (2011) No.16-17,p.5327