Search results

Process Design of Profile Ring Rolling for Turbine Diaphragm using FEM Simulation Jong Taek Yeom 1,2, a, Eun Jeoung Jung1,b, Jeoung Han Kim 1,c, Dong-Geun Lee 1,d, Nho-Kwang Park1,e , Seung Sik Choi3,f and Chong Soo Lee2,g 1 Materials Technology Institute, KIMM, Changwon 641-010, South Korea 2 Department of Materials Science and Engineering, POSTECH, Pohang 790-784, South Korea 3 Taewoong Co., Busan 618-270, South Korea a yjt96@kmail.kimm.re.kr, beuny012@nate.com, ckjh1754@kmail.kimm.re.kr, d leechodg@kmail.kimm.re.kr, epnk@kmail.kimm.re.kr, fseungsik.choi@taewoong.com, g chlee@postech.ac.kr Keywords: Profile ring rolling, Turbine Diaphragm, Finite Element Method, Dynamic Materials Model, Optimum Process Design Abstract.
Based on the compression test results of the low alloy steel, deformation processing map was generated using the combination of the dynamic materials model (DMM) and stable or unstable forming criteria.
Profiled ring shape for turbine diagram. 4188 3218 4188 3218 Characterization of Processing Maps using Dynamic Materials Model(DMM) In order to determine the optimum condition in profile ring rolling process of low carbon steel, the processing maps was generated using the combination of the dynamic materials model (DMM) [3] and stable or unstable forming criteria.
Acknowledgement This research was partly made by Comprehensive Materials and Components Technology Support Program and also partly supported by a grant through 2003 National Research Laboratory Program.
Lee: submitted to Journal of Materials Processing Technology (2006) [2] R.

Factors affecting the joint strength of brazed joints like external compressive weight, diffusion of filler material into the parent materials, surface roughness of parent materials, surface flatness have been discussed.
Brazing and soldering involves joining of two materials with the help of a third filler material.
The filler materials flow through capillary action.
Another important criterion for successful brazing is wetting of base materials by filler material.
Flow of filler materials is assisted by low angle of contact.

Introduction Nowadays, developments in natural fibers such as hemp, jute, kenaf, sisal, and bamboo have shown that it is possible to obtain well performing composite materials using these materials for reinforcement.
The cellulosic materials which were of lower composition (40%) decomposed at lower temperature (298 0C) compared to the untreated fibres.
U. lku, Dye adsorption behavior of Luffa cylindrica fibers, Journal of Hazardous Materials, Volume 153, Issues 1–2, 1 (2008), p.389 [3] H.Demir, U.Atikler, D.Balkose, F.
M. d'Almeida, Aspects of alkali treatment of sponge gourd (Luffa cylindrica) fibers on the flexural properties of polyester matrix composites, Journal of Applied Polymer Science, Volume 87, Issue 12 (2003), p.1927 [6] M.A.
Cabillon, R.P.Cerbito and E.O.Santos, Loofah Fiber as Reinforcement Material for Composite, Philippine Journal of Science, 134 (2) (2005), p.113 [7] L.Ghali, S.Msahli , M.Zidi, F.Sakli, Effect of pre-treatment of Luffa fibres on the structural properties, Materials Letters 63 (2009), p.61 [8] V.O.A.

Amongst inorganic materials, zinc oxide (ZnO) is one of the most significant electronic materials because of its direct and wide energy gap of ~3.37 eV and large excitonic binding energy of 60 meV at room temperature [14].
Utane, International Journal of Emerging Technology and Advanced Engineering 5 (2) (2015) 495-498
Journal of Crystal Growth 310 (2008) 1836-1840
Journal of Alloys and Compounds 480 (2009) 741-746
Chu, Applied Surface Science 254 (2008) 6483-6488.

Materials Cement.
Lastly, corrosion resistance coefficient of other kinds of cementitious material is tested, and method for assessment sulfate resistance is developed, and then sulfate resistance of different cementitious materials are classed according to the assessment method.
Table 7 Content of different cementitious materials Mix NO.
Kumar Mehta: Concrete Structure, Properties and Materials(Prentice Hall prss, America,1991)
Baghabra, Al-Amoudi: Cement and Concrete Composites, Vol.24(2002):305~316 [7] Mingxia Shi, Youjun Xie: Journal of building materials(in chinese),Vol.6(2003):350~355 [8] Huisheng Shi: Cement(in chinese), Vol.7(1999):6~9

Analysis The material characteristics of titanium alloy.
Materials Science and Engineering.Volume 213, Issues 1-2, (1996), P.103 [2] E.A.
Progress in Aerospace Sciences.Volume 32, Issues 2-3(1996), P.131 [3] E.O.
Journal of Materials Processing Technology.Volume 68, Issue 3(1997), P.262 [4] C.H.
Journal of Materials Processing Technology.Volume 166, Issue 2(2005), P.188 [5] James C Williams, Edgar A Starke Jr: Progress in structural materials for aerospace systems.

In the case of ferromagnetic materials, the global magnetostatic energy changes, according to the domain wall configuration.
Introduction A very important detail for ferromagnetic materials is the domain wall configuration.
[2] M.F. de Campos and J.A. de Castro: Materials Science Forum Vols. 660-661 (2010), p. 279
Padovese: Journal of Applied Physics Vol. 103 (2008), p. 043910
Missell: Journal of Magnetism and Magnetic Materials Vol. 320 (2008), p. e73

Effect of Ce Co-deposition on Phase Structure and Thermal Stability of Ni-Cu-P Alloy SUN Hua1, aMA Hongfang1, b, FENG Liming1, c , GUO Xiaofei1,d 1School of Materials Science and Engineering, Shandong Jianzhu University.
Cerium nitrate can make the Ni-Cu-P-Ce coating microstructure of cellular materials more closely.
[2] FANG Xin-xia：Corrosion science and protection technology. 22(2010), p.110
[4]ZHANG Yong， Zheng-tao，YAN Jun：Surface Technolog. 37(2008)，p.81　　　　　　　　　 [5] YANG Qing-hai，YOU Xian-qing，ZHANG Yan：Rare Metals and Cemented Carbides. 37（2009），p.58　 [6] Shibli S M，DilimonVS：International Journal of Hydrogen Energy. 32（2007），p.1649 [7] Palaniappa M，Seshadri S：Materials Science and Engineering. 460（2007），p.638 [8] GUO Huanyu,WANG Guixue，XIE Guangwen：Journal of Qingdao University of Science and Technology. 31（2010），p.400 [9] Chang L，Kao PW，Chen C H：Scripta Materialia. 56（2007），p.713 [10] Yinxiang Lu：Applied Surface Science. 256(2010)，p.3554 [11] MONONOBE S：Japanese Journal of Applied Physics. 47（2008），p. 4317
[16] Yang Haiyan，Wei Yinghui，Hou Lifeng：Rare Metal Material and Engineering.37(2008), p.1982

This typical structure of materials, prepared by mechanical alloying is formed by ductile and hard elements.
Ayres de Campos, Journal of Materials Processing Technology, 92-93 (1999) 395-400
Changui, J. of Magnetism and Magnetic Materials, 312 (2007) 310-313 [12] X.
Materials Science and Engineering, A445-446 (2007) 135-140 [13] F.
Materials Science Forum, 584-586 (2008) 977-981

The CFRP panels were fabricated by using Hexply® M10/ 38%/UD300 /CHS pre-impregnated materials from Hexcel Corps [15] with stacking sequence of [0/-45/45/90]S.
Acknowledgements This work is supported by E-science fund grant number SF00064 from the Ministry of Science, Technology & Industry (MOSTI), Malaysia and RUGS 9348100 from Universiti Putra Malaysia.
Majid, A Structural health monitoring of a pitch catch active sensing of PZT sensor on normal, damage and repaired aircraft spoiler, Key Engineering Materials, Vol. 472, (2011) pp. 1124-1129 [3] I.
Xuan, PZT sensors and their application in structural health monitoring, Applied Mechanics and Materials, Vol. 128-129, (2012), pp. 669-675 [9] V.
Ali, Application of Walet transform and its advantages compared to Fourier Transform, Journal of Physic Sciences, Vol. 13, (2009), pp. 121 ~ 134 [14] F.