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Wuhan, 430080, China 2School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430074, China apan97181@126.com, blhuasvs@yahoo.com.cn, cbestcx@yahoo.com.cn Keywords: Cold ring rolling, Stiffness condition, Finite element, Simulation Abstract: Cold ring rolling is a kind of advanced manufacturing technology.
Introduction Cold ring rolling is a kind of advanced technology used to manufacture various precise rings in many industrial fields, such as bearing, machine, automobile, train, and aerospace vehicle.
Forum Vol. 471-472 (2004), p. 760-764.

Effect of Curing Time and Sintering to the Properties of Geopolymer Mortars Salwa ISMAIL1,a, Mohammad Faizal MOHD RAZALI1,b,Izwan JOHARI2, Zainal Arifin AHMAD1,c, Shah Rizal KASIM1,d 1Structural Materials Niche Area, School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia 2School of Civil Engineering, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia asalwaismailhashim@gmail.com, bmohammadfaizalrazali@gmail.com, csrzainal@usm.my dsrshahrizal@usm.my Keywords: Geopolymer, Fly ash, Silica powder, Sintering, XRD, XRF Abstract.
Jumaat, A review on fly ash-based geopolymer concrete, Electronic Journal of Structural Engineering, 13 (2013) 1-6
Low, Advances in Ceramic Matrix Composites, Woodhead Publishing, Oxford, 2014, 445-470
Amjad, Effect of curing system on properties of fly ash-based geopolymer bricks, in extracted by ICOME 2012 virtual forum-3RD internatinal conference on mechanical engineering (2013) 67

Advanced SiC/SiC Composite Materials for Fourth Generation Gas Cooled Fast Reactors* Akira Kohyama Institute of Advanced Energy, Kyoto University, Uji, Kyoto, Japan Kohyama@iae.kyoto-u.ac.jp Keywords: SiC, SiC/SiC Composite Material, Energy Application, Near Net Shape Process, SiC nano-powder, nanotechnology, microstructure, mechanical property, radiation effect Abstract.
Although there have been many progresses in conceptual design study but supporting activities from engineering and materials have been still pre-mature and insufficient.
But for the VHTR and GFR, very or ultra high temperature materials are essential to keep their attractiveness as advanced core energy systems.
References [1] Advanced Composite Materials, (MRS, 2002) [2] L.L.
Jimbo, Materials Transaction 45, 51-58 (Japan Institute of Metals, 2004) [4] Advanced SiC/SiC Ceramic Composites, Editors A.

Vilaça3,e 1 CEMUC, Department of Mechanical Engineering, University of Coimbra, Rua Luís Reis Santos Pinhal de Marrocos, 3030-788 Coimbra, Portugal 2 ESAD-CR, R.
Incipient barbs can be observed in the advancing side of the welds.
Shoulder diameter advancing retreating References [1] C.
Adv Mater Forum II 2004;455-456:299-302
Vilaça, Materials Science and Engineering A 498 (2008) 384-391 [15] B.

Kumar, Process optimization of SiO2 interface coating on carbon fibre by RF PECVD for advanced composites, Surfaces and Interfaces 9 (2017) 21–27
Faleev, Generation of plasma flows by arc plasmatrons, Thermal Engineering 60 (2013) 878–881
Jordan, Stochastic computer simulation of cermet coatings formation, Advances in Materials Science and Engineering (2015) 396427
Khan, Some Peculiarities of Spin Manifestation in Isotope Effects, Advanced Materials Research 1040 (2014) 360–366
Shekhovtsov, Calculation of the Melting Process of a Quartz Particle Under Low-Temperature Plasma, Journal of Engineering Physics and Thermophysics 89 (2016) 152–156

Study on microstructures and mechanical properties of die casting Mg-xGd-3Y-0.5Zr alloys WANG Feng1, a, WANG Zhi2,b, LIUZheng3,c, MAO Pingli4,d 1School of materials science and engineering, Shenyang University of Technology 2School of materials science and engineering, Shenyang University of Technology 3School of materials science and engineering, Shenyang University of Technology 4School of materials science and engineering, Shenyang University of Technology a wf9709@126.com, bprince8303@126.com; czliu4321@vip.sina.com, dpinglimao@yahoo.com Keywords: die casting magnesium alloy, Mg-Gd-Y-Zr, solution heat treatment, microstructures, mechanical property Abstract.
Ebert, Materials Science and Engineering.
Kim, Materials Science Forum. 488/489 (2005), p.107-110 [4] M.
Smola, et al., Materials Science and Engineering.
Rokhlin, Proceedings of NATO Advanced Study Institute, Kluwer1998, p. 443

Seminar on Advanced Bio- and Mineral based Natural Fibre Composites (SBMC2021), 14-17 (2021)
Fatigue & Fracture of Engineering Materials & Structures, 44(8) (2020)
Proceedings of International Structural Engineering and Construction 1(1), (2014)
Science and Engineering of Composite Materials 26(1), 43-52 (2018)
IOP Conference Series Materials Science and Engineering, 327(4):042103 (2018)

Gnanavelbabu2, b* 1Dept. of Mechanical Engineering, Arunai Engineering College, Tiruvannamalai, Tamil Nadu, India 2Dept. of Mechanical Engineering, Agni College of Technology OMR, Thalambur, Chennai, Tamil Nadu, India arsendhil_jk@yahoo.com, *bdr.agbabu@gmail.com Keywords: AZ61AMg alloy, Solution heat treatment, Soaking, Tensile, Hardness, Microstructure Abstract.
The curve between the engineering stress vs strain was plotted and is shown in Fig. 2.
Moreover, the engineering stresses vs strain was plotted for before and after solution heat treated.
[3] M K Kulekci, “Magnesium and its alloys applications in automotive industry”, International Journal of Advanced Manufacturing Technology, 2008, 39(9−10): 851−865
Materials forum volume 34 -2010

From the above analysis, it can be clearly drawn that: the increase and decrease of engineering amount, deleting engineering and extra engineering will affect the overall profit or profit rate; therefore, they shall be compensated.
Engineering Valuation [M].
Academic Forum, 2008(08):99-104; In Chinese
Engineering Claim Management [M].
[8] I.N.Duncan Wallance.Hudson’s Building and Engineering Contracts[M].

Experimental and numerical analysis on FSWed magnesium alloy thin sheets obtained using “pin” and “pinless” tool Gianluca Buffa1, a, Archimede Forcellese2, b, Livan Fratini1, c and Michela Simoncini3, d 1Department of Chemical, Management, Computer Science and Mechanical Engineering, University of Palermo, Viale delle Scienze, 90128 Palermo, Italy 2Department of Industrial Engineering and M Sciences, Università Politecnica delle Marche, 60131 Ancona, Italy 3Università degli Studi e-Campus,Via Isimbardi 10, Novedrate (CO), 22060 Italy agianluca.buffa@unipa.it, ba.forcellese@univpm.it, clivan.fratini@unipa.it, cmichela.simoncini@uniecampus.it Keywords: Magnesium alloy; Thin sheets; Friction stir welding; Pinless tool configuration; FEM.
Balasubramanian, An experimental investigation on friction stir welding of AZ31B magnesium alloy, International Journal of Advanced Manufacturing Technology 49 (2010) 111-121
Simoncini, Friction stir welding of magnesium alloys under different process parameters, Mater Sci Forum 638–642 (2010) 3954–3959
Fratini, A continuum based FEM model for friction stir welding - model development, Materials Science and Engineering: A 419/1-2 (2006) 381-388
Vilac, Material flow in heterogeneous friction stir welding of thin aluminium sheets: Effect of shoulder geometry, Materials Science Engineering A 498 (2008) 384-391